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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3797. Отображено 100.
31-05-2012 дата публикации

Process

Номер: US20120136165A1
Автор: Basudeb Saha, David C. Sherrington, Krzysztof Ambroziak, Rene Mbeleck
Принадлежит: SOUTH BANK UNIVERSITY ENTERPRISES LTD

The present invention provides a continuous process for the epoxidation of an olefinic compound with an oxidant, which process comprises reaction of an olefinic compound with an oxidant in the presence of a catalyst in an apparatus that comprises a reactive distillation column, which column comprises (i) a reactive section, which comprises the catalyst (ii) a rectifying section situated above the reactive section and adapted to allow separation of reagents and/or by-products from products (ix) a stripping section situated below the reactive section and adapted to allow separation of product from reagents and/or by-products (x) a vessel situated below the stripping section and adapted to provide a source of heat for the column and in which initial vaporisation of one or more of the reagents can occur, wherein the temperature in the reactive section (i) is a temperature at which the reaction between the olefinic compound and the oxidant takes place and the temperature in the stripping section (iii) is higher than the temperature in the rectifying section (ii).

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Номер записи: 1
30-08-2012 дата публикации

Molecular Molybdenum Persulfide and Related Catalysts for Generating Hydrogen from Water

Номер: US20120217169A1
Автор: Christopher J. Chang, Hemamala I. Karunadasa, Jeffrey R. Long, Marcin Majda
Принадлежит: UNIVERSITY OF CALIFORNIA

New metal persulfido compositions of matter are described. :In one embodiment the metal is molybdenum and the metal persulfido complex mimics the structure and function of the triangular active edge site fragments of MoS 2 , a material that is the current industry standard for petroleum hydro desulfurization, as well as a promising low-cost alternative to platinum for electrocatalytic hydrogen production. This molecular [(PY5W 2 )MoS 2 ] x+ containing catalyst is capable of generating hydrogen from acidic-buffered water or even seawater at very low overpotentials at a turnover frequency rate in excess of 500 moles H 2 per mole catalyst per second, with a turnover number (over a 20 hour period) of at least 19,000,000 moles H 2 per mole of catalyst.

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Номер записи: 2
21-03-2013 дата публикации

Supported metal catalysts

Номер: US20130072722A1
Автор: Frederick Earnest Hancock, James Cookson, Peter Trenton Bishop, Robert John McNair, Steven Hawker
Принадлежит: JOHNSON MATTHEY PLC

The present invention relates to supported metal catalysts, wherein the catalysts are modified by at least one amine, a method for the preparation thereof and hydrogenation processes utilising the supported metal catalysts.

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Номер записи: 3
14-11-2013 дата публикации

Method for producing urethanes

Номер: US20130303740A1
Автор: Andreas Jacob, Felix GÄRTNER, Jörg SUNDERMEYER, Stefan Wershofen, Stephan Klein
Принадлежит: Bayer Intellectual Property GmbH

The invention relates to a method for producing urethanes or ureas or mixtures of urethanes and ureas by oxidative carbonylation of organic amines in the presence of carbon monoxide, oxygen and a catalyst, where the catalyst used is a transition metal complex containing the structural feature: [Mn+(O˜N˜O)2−](n-2)+(L)m(Z−)n-2 and the method is carried out under halogen-free reaction conditions. The invention further relates to transition metal complexes containing said structural feature and also to the use of such transition metal complexes as catalysts in the production of urethanes or ureas or mixtures of urethanes and ureas.

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Номер записи: 4
12-12-2013 дата публикации

Method and apparatus for a photocatalytic and electrocatalytic copolymer

Номер: US20130327654A1
Автор: Ed Ite Chen, Tara CRONIN
Принадлежит: VICEROY CHEMICAL, Viceroy Chemical Inc

A method and apparatus for a photocatalytic and electrolytic catalyst includes in various aspects one or more catalysts, a method for forming a catalyst, an electrolytic cell, and a reaction method.

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Номер записи: 5
05-01-2017 дата публикации

PROCESS OF PRODUCTION OF 2,5-DIMETHYLPHENOL

Номер: US20170001935A1
Автор: Bonrath Werner, Letinois Ulla, Netscher Thomas
Принадлежит:

The present invention relates to a new method to produce 2,5-dimethylphenol (2,5-DMP). 2. Process according to claim 1 , wherein the catalyst is an Au(I) complex.6. A process according claim 3 , wherein the Au(I) complex is added to reaction mixture as such.7. Process according to claim 3 , wherein the Au(I) complex is formed in situ in the reaction mixture.8. Process according to claim 1 , wherein the substrate to catalyst ratio is 2:1 to 10000:1 claim 1 , preferably are 10:1 to 3000:1 The present invention relates to a new method to produce 2,5-dimethylphenol (2,5-DMP).2,5-dimethylphenol, which is also called 2,5 xylenol, can be used for example as an intermediate in the production of vitamin E.Xylenols are organic compounds with the formula (I)They are volatile colorless solids or oily liquids. They are derivatives of phenol with two methyl groups and a hydroxyl group. Six isomers are existing.Together with many other compounds, xylenols are traditionally extracted from coal tar, the volatile materials obtained in the production of coke from coal. These residues contain a few percent by weight of xylenols as well as cresols and phenol.Together with cresols and cresylic acid, xylenols are an important class of phenolics with great industrial importance. They are used in the manufacture of antioxidants. Xylenol orange is a redox indicator built on a xylenol skeleton. 2,5-DMP, which is the compound of formula (Ia)is an intermediate in the production of the 2,3,6-trimethylphenol (2,3,6-TMP) which is the compound of formula (II)2,3,6-TMP is usually produced by a gasphase methylation of 2,5-DMP.2,3,6-TMP can be used as such (for example in cosmetic formulations) as well as intermediate in the production of other organic compounds, such as for example vitamin E.Due to fact that of 2,5-DMP is obtained from not renewable resources, an alternative, more sustainable production of 2,5-DMP is desirable.We now found a new way for the production of 2,5-DMP, which is carried out ...

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Номер записи: 6
27-01-2022 дата публикации

THERMOLATENT CATALYST FOR POLYMERIZATION OF ISOCYANATES

Номер: US20220025100A1
Автор: Chen Ruqi, Deng Yan, Hocke Heiko, Zhao Dongbo
Принадлежит:

The present invention relates to novel thermolatent catalysts for the manufacture of isocyanurate and polyisocyanate polymers. 1. A method for producing a polymer comprising: (i) a liquid phase comprising at least one polyisocyanate,', '(ii) a solid phase comprising at least one catalyst comprising a metal salt having a carboxylate of an aliphatic carboxylic acid comprising at least 12 carbon atoms or a phenolate as an anion capable of crosslinking the polyisocyanate so that a polymer is formed, wherein said catalyst is solid below a temperature of 50° C. and is liquid or dissolved at a polymerization temperature of 60° C. to 280° C., and, 'a) providing a polymerizable composition having a molar ratio of isocyanate groups to all functional groups reactive with isocyanate in the polymerizable composition of at least 3.0:1.0 comprising'}b) heating the polymerizable composition to the polymerization temperature and maintaining said temperature at least until the polymerizable composition reaches the gel point.2. The method of claim 1 , wherein the catalyst is present as particles having a number average diameter of 100 nm to 100 μm.3. The method of claim 1 , wherein the anion of the salt is a carboxylate.4. The method of claim 3 , wherein the carboxylate is derived from a carboxylic acid with at least 12 carbon atoms.5. The method of claim 4 , wherein the carboxylate is selected from the group consisting of: laureate claim 4 , myristate claim 4 , palmitate claim 4 , stearate claim 4 , and dimeric acids.6. The method of claim 1 , wherein the metal is selected from the group consisting of: potassium claim 1 , lithium claim 1 , sodium claim 1 , calcium claim 1 , and barium.7. The method of claim 6 , wherein the metal is potassium.8. The method of claim 1 , wherein the polyisocyanate is selected from the group consisting of: PDI claim 1 , HDI claim 1 , IPDI claim 1 , H12MDI claim 1 , TDI claim 1 , MDI claim 1 , XDI claim 1 , TMXDI claim 1 , and oligomeric polyisocyanates ...

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Номер записи: 7
11-01-2018 дата публикации

Method and Composition For Reducing Nitrates, Nitrites, and/or Hydroxylamine in Water Using a Homogeneous Reduced Copper Tetra-Substituted Fluorinated Pinacolate Ligand Catalyst Complex

Номер: US20180009685A1
Автор: Doerrer Linda H., Hannigan Steven F., Kotyk Christopher M., Tahsini Laleh
Принадлежит: TRUSTEES OF BOSTON UNIVERSITY

A method for reducing nitrates, nitrites, and/or hydroxylamine in water using a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex. The method includes dissolving a copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in water having an excess amount of nitrates, nitrites, and/or hydroxylamine therein. The dissolved copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in the water is subjected to electrochemical reduction to form a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex. The homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex reduces the nitrates, nitrites, and/or hydroxylamine in the water to compounds with nitrogen in a lower oxidation state with the homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex. 1. A method for reducing nitrates , nitrites , and/or hydroxylamine in water using a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex , the method comprising:dissolving a copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in water having an excess amount of nitrates, nitrites, and/or hydroxylamine therein;subjecting the dissolved copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in the water to electrochemical reduction to form a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex; andreducing the nitrates, nitrites, and/or hydroxylamine in the water to compounds with nitrogen in a lower oxidation state with the homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex.2. The method of in which the copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex includes substituents configured as fluorinated aryl groups or fluorinated alkyl groups.3. The ...

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Номер записи: 8
09-01-2020 дата публикации

Catalyst for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol, method and application thereof

Номер: US20200009544A1
Автор: Changsheng Chen, Hengdong YANG, Jianglin HU, Ke Ding, Kun Wang, Qingmei JIANG, Wei Zeng, Weiqi Hua, Yanfang SONG, Yang Yang, YUAN Li, Yunhai LIU
Принадлежит: Wanhua Chemical Group Co Ltd

The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.

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Номер записи: 9
14-01-2016 дата публикации

Molecular molybdenum persulfide and related catalysts for generating hydrogen from water

Номер: US20160010219A1
Автор: Christopher J. Chang, Hemamala I. Karunadasa, Jeffrey R. Long, Marcin Majda
Принадлежит: UNIVERSITY OF CALIFORNIA

New metal persulfido compositions of matter are described. In one embodiment the metal is molybdenum and the metal persulfido complex mimics the structure and function of the triangular active edge site fragments of MoS 2 , a material that is the current industry standard for petroleum hydro desulfurization, as well as a promising low-cost alternative to platinum for electrocatalytic hydrogen production. This molecular [(PY5W 2 )MoS 2 ] x+ containing catalyst is capable of generating hydrogen from acidic-buffered water or even seawater at very low overpotentials at a turnover frequency rate in excess of 500 moles H 2 per mole catalyst per second, with a turnover number (over a 20 hour period) of at least 19,000,000 moles H 2 per mole of catalyst.

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Номер записи: 10
21-01-2016 дата публикации

GOLD COMPLEXES

Номер: US20160016976A2
Автор: NOLAN Steven P.
Принадлежит: UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS

Gold (I) hydroxide complexes of the form Z—Au—OH and digold complexes of the form Z—Au-(μOH)—Au—Z where groups Z are two electron donors are provided. The groups Z may be carbenes, for example nitrogen containing heterocyclic carbenes (NHCs), phosphines or phosphites. The complexes can be used as catalysts, for example in reactions such as hydration of nitriles, skeletal arrangement of enynes, alkoxycyclisation of enynes, alkyne hydration, the Meyer-Shuster reaction, 3,3′ rearrangement of allylic acetates, cyclisation of propargylic acetates, Beckman rearrangements and hydroamination. The complexes can be used in medicine, for example in the treatment of cancer. 2. The method according to wherein the complex is used as a catalyst claim 1 , or for the in situ production of a catalyst claim 1 , for catalyzing a chemical transformation of the substrate claim 1 , the chemical transformation selected from the group consisting of: hydration of nitriles claim 1 , skeletal arrangement of enynes claim 1 , alkoxycyclisation of enynes claim 1 , alkyne hydration claim 1 , the Meyer-Shuster reaction claim 1 , 3 claim 1 ,3′ rearrangement of allylic acetates claim 1 , cyclisation of propargylic acetates claim 1 , Beckman rearrangements and hydroamination.3. (canceled)4. (canceled)5. The method according to wherein the complex is according to general formula V and the anion A is selected from the group consisting of BF claim 1 , PF claim 1 , SbF claim 1 , [B{CH(CF)}] claim 1 , and [B(CF)].6. The method according to wherein the groups Z are selected from the group consisting of carbene claim 1 , phosphine claim 1 , and phosphite two-electron donor ligands.7. The method according to wherein the groups Z are selected from the group consisting of cyclic or acyclic carbenes having one or more heteroatoms claim 6 , triphenylphosphine claim 6 , substituted triphenylphenylphosphine claim 6 , substituted triphenylphosphite claim 6 , and substituted triphenyl phosphite.8. The method ...

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Номер записи: 11
28-01-2016 дата публикации

Metallorganocatalysis For Asymmetric Transformations

Номер: US20160023198A1
Автор: Xumu Zhang
Принадлежит: Rutgars State University Of New Jersey

A ligand having the structure or its enantiomer; (I) wherein: each one of R a , R b , R c and R d is selected from alkyl, cycloalkyl, and aryl; the bridge group is selected from CH 2 NH; *CH(CH 3 )NH(C*,R); and the organocatalyst is an organic molecule catalyst covalently bound to the bridge group. Also, a catalyst having the structure or its enantiomer: (II) wherein: each one of R a , R b , R c and R d is selected from alkyl, cycloalkyl, and aryl; the bridge group is selected from CH 2 NH; *CH(CH 3 )NH(C*,R); and *CH(CH 3 )NH(C*,S); the organocatalyst is an organic molecule catalyst covalently bound to the bridge group; and M is selected from the group consisting of Rh, Pd, Cu, Ru, Ir, Ag, Au, Zn, Ni, Co, and Fe.

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Номер записи: 12
10-02-2022 дата публикации

Method for Synthesizing Pitavastatin t-Butyl Ester

Номер: US20220041556A1
Автор: Fuming ZHAN, Huan Huang, Kai Li, Qingguo Huang, Qingyun Huang
Принадлежит: ANHUI QINGYUN PHARMACEUTICAL AND CHEMICAL Co Ltd

Method for Synthesizing Pitavastatin t-Butyl Ester A method for synthesizing pitavastatin tert-butyl ester includes obtaining a substance B through reacting (4R-CIS)-6-chloromethyl-2,2-dimethyl-1,3-dioxolane-4-acetic acid tert-butyl ester with a substance A under the action of a first base catalyst, 5 oxidizing with an oxidizing agent to obtain a substance C, then reacting with 2-cyclopropyl-4-(4-fluorophenyl)-quinoline-3-formaldehyde under the action of a second base catalyst to obtain a substance D, and finally, carrying out an acid deprotection to obtain pitavastatin t-butyl ester. The reaction conditions of the present invention are mild and controllable, and the reaction conditions of the synthesis of the Julia olefination do 10 not require an ultra-low temperature reaction. The operation is convenient and simple, the stereoselectivity is good, the yield is high, and the synthesized pitavastatin t-butyl ester is a completely non-cis isomer, and its purity is high.

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Номер записи: 13
23-01-2020 дата публикации

Cu- and Ni-Catalyzed Decarboxylative Borylation Reactions

Номер: US20200024290A1
Автор: BARAN Phil, Chatterjee Arnab Kumar, Johnson Kristen Ann, Kumar Manoj, LI CHAO, Qin Tian, SHANG Ming, WANG JIE, YU Shan
Принадлежит:

The invention is directed to methods of converting a carboxylic acid group in a compound, via a redox active ester, to a corresponding boronic ester by treatment with bis(pinacolato)diboron-alkyllithium complex in the presence of a ligand, a Ni(11) salt or a copper salt, and an Mg(11) salt, in the presence of an alkyllithium or a lithium hydroxide or alkoxide salt. The product pinacolato boronate ester can be cleaved to provide a boronic acid. The invention is also directed to methods of preparing various compounds of medical value comprising boronic acid groups, and to novel boronic-acid containing compounds of medicinal value, including an atorvastatin boronic acid analog, a vancomycin aglycone boronic acid analog, and boronic acid containing elastase inhibitors mCBK319, mCBK320, mCBK323, and RPX-7009. 3. The method of or wherein the redox active ester of the alkyl carboxylic acid is an N-hydroxyphthalimide or a tetrachloro-N-hydroxyphthalimide ester.4. The method of or wherein the Cu(II) complex of a 1 ,3-dicarbonyl compound , of formula (M) , is Cu(acac)(M1).5. The method of or wherein the Ni(II) salt is NiCl.6. The method of or wherein the Mg(II) salt is MgBror MgCl.7. The method of or wherein for a Ni catalyst the organolithium compound is methyllithium or wherein for a Cu catalyst the lithium compound is LiOH or a lithium (C1-C4)alkoxide.8. The method of or wherein the aprotic solvent comprises THF or dioxane , and DMF.10. The method of wherein the step of cleaving the pinacolato ester of the alkyl bornic acid compound comprises contacting the ester with BClfollowed with methanol claim 9 , or contacting the ester with trifluoroacetic acid claim 9 , or contacting the ester with a boronic acid in aqueous HCl.11. The method of wherein the boronic acid is phenylboronic acid or 2-methylpropylboronic acid. This invention was made with government support under GM-118176 awarded by the National Institutes of Health. The government has certain rights in the invention. ...

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Номер записи: 14
30-01-2020 дата публикации

Gold-Catalyzed C-C Cross-Coupling of Boron- and Silicon-Containing Aryl Compounds and Aryldiazonium Compounds by Visible-Light

Номер: US20200031731A1
Автор: Braje Wilfried, Hashmi A. Stephen K., Rudolph Matthias, Witzel Sina, Xie Jin
Принадлежит:

The present invention relates to a method for producing (functionalized) biaryls by employing a visible-light-driven, gold-catalyzed C—C cross-coupling reaction system involving boron- and silicon-containing aryl compounds and aryldiazonium compounds. Moreover, the present invention relates to the use of such boron- and silicon-containing aryl compounds and aryldiazonium compounds, as well as related gold catalysts, in the manufacture of (functionalized) biaryls. 6. The method according to claim 1 , wherein Ris selected from BF claim 1 , PF claim 1 , SbF claim 1 , OTf claim 1 , NTf claim 1 , OSOCF claim 1 , F claim 1 , OSOF claim 1 , BArF claim 1 , BArF claim 1 , brosylate claim 1 , carborane claim 1 , C(TF) claim 1 , B(Ph) claim 1 , Altebat claim 1 , Bortebat claim 1 , PFTB claim 1 , and C(CF).7. The method according to claim 1 , wherein the aryl groups Arand Arare independently selected from furanyl claim 1 , pyrrolyl claim 1 , thiophenyl claim 1 , imidazolyl claim 1 , pyrazolyl claim 1 , oxazolyl claim 1 , isoxazolyl claim 1 , thiazolyl claim 1 , phenyl claim 1 , pyridinyl claim 1 , pyrazinyl claim 1 , pyrimidinyl claim 1 , pyradizinyl claim 1 , benzofuranyl claim 1 , indolyl claim 1 , benzothiophenyl claim 1 , benzimidazolyl claim 1 , indazolyl claim 1 , benzoxazolyl claim 1 , benzisoxazolyl claim 1 , benzothiazolyl claim 1 , isobenzofuranyl claim 1 , isoindolyl claim 1 , purinyl claim 1 , naphthyl claim 1 , chinolinyl claim 1 , chinoxalinyl and chinazolinyl.8. The method according to claim 1 , wherein each of the aryl groups Arand Arof the boron- or silicon-containing aryl compounds and the aryldiazonium compound claim 1 , respectively claim 1 , comprises one or more substituents which are independently selected from the group consisting of hydrogen claim 1 , halogen claim 1 , nitro claim 1 , hydroxy claim 1 , cyano claim 1 , carboxyl claim 1 , C-Ccarboxylic acid ester claim 1 , C-Cether claim 1 , C-Caldehyde claim 1 , C-Cketone claim 1 , sulfonyl claim 1 , C- ...

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Номер записи: 15
11-02-2016 дата публикации

CATALYSTS FOR ELECTROLESS METALLIZATION CONTAINING FIVE-MEMBERED HETEROCYCLIC NITROGEN COMPOUNDS

Номер: US20160038925A1
Автор: Cleary Donald E., Milum Kristen M., Rzeznik Maria A.
Принадлежит:

Catalysts include five-membered nitrogen containing heterocyclic compounds as ligands for metal ions which have catalytic activity. The catalysts are used to electrolessly plate metal on metal clad and un-clad substrates. 16-. (canceled)8: The catalyst of claim 7 , wherein the one or more compounds are chosen from hydantoin claim 7 , 1-methylhydantoin claim 7 , 1 claim 7 ,3-dimethylhydantoin claim 7 , 5 claim 7 ,5-dimethylhydantoin claim 7 , allantoin claim 7 , 1 claim 7 ,3-dihydroxymethyl-5 claim 7 ,5-dimethylhydantoin and succinimide.9: The catalyst of claim 7 , wherein a molar ratio of the one or more compounds to metal ions is from 1:1 to 4:1.10: The catalyst of claim 7 , wherein the one or more compounds are in amounts of 25 ppm to 1000 ppm. The present invention is directed to catalysts for electroless metallization containing five-membered heterocyclic nitrogen compounds. More specifically, the present invention is directed to catalysts for electroless metallization containing five-membered heterocyclic nitrogen compounds which are stable during storage and electroless metallization.Conventional printed circuit boards (PCBs) consist of laminated non-conductive dielectric substrates that rely on drilled and plated through holes (PTHs) to form a connection between the opposite sides and/or inner layers of a board. Electroless plating is a well-known process for preparing metallic coatings on surfaces. Electroless plating of a dielectric surface requires the prior deposition of a catalyst. The most commonly used method to catalyze or activate laminated non-conductive dielectric substrate regions, prior to electroless plating, is to treat the board with an aqueous tin-palladium colloid in an acidic chloride medium. The colloid consists of a metallic palladium core surrounded by a stabilizing layer of tin(II) ions. A shell of [SnCl] complexes act as surface stabilizing groups to avoid agglomeration of colloids in suspension.In the activation process, the palladium ...

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Номер записи: 16
07-02-2019 дата публикации

METAL CATALYST, METHOD OF C-N COUPLING USING THE SAME AND APPLICATIONS OF THE SAME

Номер: US20190039057A1
Автор: Brandt Andrew L., Ghosh Anindya, Parnell Charlette
Принадлежит:

The present disclosure relates to a metal catalyst for C—H bond activation and/or C—N coupling reaction, and a method using the same and application thereof. Specifically, a metal catalyst represented by the following formula: 4. The metal catalyst according to claim 1 , wherein W claim 1 , X claim 1 , and Y are the same.5. The metal catalyst according to claim 1 , wherein M is Ni claim 1 , Pd claim 1 , Fe claim 1 , Co claim 1 , Cr claim 1 , Mn claim 1 , Cu claim 1 , or Pt.6. A method for C—H bond activation and/or C—N coupling reaction comprising using the metal catalyst according to .7. The method according to claim 6 , wherein the C—N coupling reaction forms C—N bonds between a spcarbon and a primary or secondary amine to form substituted or an alkylated amine.8. The method according to claim 7 , wherein the primary or secondary amine is an aliphatic or aromatic amine.9. The method according to claim 7 , wherein spcarbon is an aliphatic and aromatic hydrocarbon.10. The method according to claim 6 , wherein the C—H bond activation and/or C—N coupling reaction is performed under ambient and mild conditions.11. The method according to claim 6 , wherein the C—H bond activation and/or C—N coupling reaction is performed without the presence of an oxidant or a base.12. The method according to claim 6 , wherein the C—N coupling reaction forms C—N bonds between aliphatic amines claim 6 , to form a cyclic amine.13. The method according to claim 6 , wherein the C—N coupling reaction forms C—N bonds between primary amines claim 6 , to obtain an oligomeric compound.14. The method according to claim 6 , wherein the C—H bond activation and/or C—N coupling reaction is performed in presence of an oxidant or a base.15. The method according to claim 14 , the C—H bond activation and/or C—N coupling reaction is performed in presence of an oxidant that is selected from a group consisting of oxygen claim 14 , hydrogen peroxide claim 14 , t-butylhydroperoxide claim 14 , peracetic acid ...

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Номер записи: 17
07-02-2019 дата публикации

HOMOPIPERAZINE-BASED CATALYSTS FOR NEUTRALIZATION OF ORGANOPHOSPHORUS-BASED COMPOUNDS

Номер: US20190040018A1
Автор: Lau Edmond Y., Mayer Brian P., Valdez Carlos A.
Принадлежит:

Novel compositions of matter based on homopiperazine precursor materials and forming a homopiperazine-based ligand are disclosed, along with suitable techniques and materials for the synthesis and utilization thereof. In particular various synthetic schemes and techniques for applying the disclosed compositions of matter as a decontaminating agent. The decontaminating agents include homopiperazine-based ligand-metal complexes that are particularly effective at neutralizing toxicity of nerve agents, pesticides, and other toxic organophosphorus-based compounds. In preferred approaches, the homopiperazine-based ligand-metal complexes act as catalysts to facilitate substitution of a leaving group of the organophosphorus-based compound with a functional group that does not permit the organophosphorus-based compound to inactivate acetylcholinesterase upon introduction of the organophosphorus-based compound to a living organism such as insects and mammals. Advantageously, the catalytic homopiperazine-based ligand-metal complexes are formed using inexpensive, readily-available precursor materials, and may be utilized to neutralize toxins without relying on damaging caustic reactants or environmentally unfriendly organic solvents. 1. A method , comprising: neutralizing toxicity of one or more organophosphorus-based compounds by reacting the organophosphorus-based compound(s) with a homopiperazine-based ligand-metal complex.2. The method as recited in claim 1 , the reacting comprising substituting a leaving group of the organophosphorus-based compound with a hydroxyl moiety conjugated to the homopiperazine-based ligand-metal complex.3. The method as recited in claim 1 , wherein a metal cation of the homopiperazine-based ligand-metal complex is selected from a group consisting of: Cu claim 1 , Zn claim 1 , Co claim 1 , Fe claim 1 , and Ni.4. The method as recited in claim 1 , wherein the neutralizing does not use any environmentally unfriendly materials.5. The method as ...

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Номер записи: 18
18-02-2021 дата публикации

WATER STABLE COPPER PADDLEWHEEL METAL ORGANIC FRAMEWORK (MOF) COMPOSITIONS AND PROCESSES USING THE MOFS

Номер: US20210046447A1
Автор: Siu Paul Wai-Man
Принадлежит: NuMat Technologies Inc.

This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has open coordination sites and has been post synthesis modified by partially occupying the open sites with a ligand such as acetonitrile (CHCN). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF which has not been post treated with ligands such as acetonitrile. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams. 1. A metal organic framework (MOF) composition comprising:{'sub': '3', 'a coordination product of a copper metal ion and 1,3,5-benzenetricarboxylic acid (BTC) ligand the MOF characterized in that the copper has open coordination sites which are at least partially occupied by acetonitrile (CHCN) and it retains at least 40% of its as synthesized surface area after exposure to liquid water at room temperature for 6 hours.'}2. The composition of further characterized in that the MOF has an as synthesized Brunauer-Emmett-Teller (BET) surface area of at least 1200 m/g.3. The composition of further characterized in that the MOF has a gravimetric uptake capacity for ammonia of at least 0.3 g of ammonia per gram of MOF measured at 675 torr and 25° C.4. The MOF of further characterized in that the MOF has a pore volume of at least 0.5 cc/g.5. The MOF of where the MOF retains at least 50% of its synthesized surface area after exposure to liquid water at room temperature for 6 hours.6. The MOF of further characterized in that the MOF is formed into a shaped body selected from pellets claim 1 , spheres claim 1 , disks claim 1 , monolithic body claim 1 , irregularly shaped particles claim 1 , extrudates claim 1 , and mixtures thereof.7. The MOF of further characterized in that the MOF is deposited as a layer on a support selected from a monolith claim 1 , spherical support claim 1 , ceramic foam claim 1 , woven fabrics claim 1 ...

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Номер записи: 19
18-02-2021 дата публикации

Method for Aerobic Oxidative Coupling of Thiophenes with a Ligand-Supported Palladium Catalyst

Номер: US20210047285A1
Автор: Stahl Shannon, Tereniak Stephen
Принадлежит:

An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions: 1. A catalytic system for catalyzing the synthesis of a 2 ,2′-bithiophene or analog thereof from two thiophenes or analogs thereof , comprising:oxygen gas;palladium;a transition metal, alkali metal, alkaline earth metal, bismuth salt, or aluminum salt; anda ligand.2. The catalytic system of claim 1 , wherein the palladium is in the form of dipalladium(0) tris(dibenzylideneacetylacetone).3. The catalytic system claim 1 , wherein the palladium is in the form of a palladium salt.4. The catalytic system of claim 3 , wherein the palladium salt is selected from the group consisting of palladium(II) acetate claim 3 , palladium(II) propionate claim 3 , palladium(II) pivalate claim 3 , palladium(II) benzoate claim 3 , palladium(II) acetylacetonate claim 3 , palladium(II) trifluoroacetate claim 3 , palladium(II) nitrate dihydrate claim 3 , and palladium(II) iodide.5. The catalytic system of claim 1 , wherein the ligand is selected from the group consisting of a 1 claim 1 ,10-phenanthroline-5 claim 1 ,6-dione; a 2 claim 1 ,2′-bipyridine claim 1 , a 2 claim 1 ,2′-bipyrimidine; a 4 claim 1 ,5-diazafluoren-9-one; a quinoline; a 1 claim 1 ,10-phenanthroline; a bis(arylimino)acenaphthene; and a 2 claim 1 ,2′-biquinoline.7. The catalytic system of claim 6 , wherein 1 claim 6 , 2 claim 6 , 3 claim 6 , 4 claim 6 , 5 or all 6 of R claim 6 , R claim 6 , R claim 6 , R claim 6 , Rand Rare hydrogen.8. The catalytic system of claim 7 , wherein all 6 of R claim 7 , R claim 7 , R claim 7 , R claim 7 , Rand Rare hydrogen (the ligand is 1 claim 7 ,10-phenanthroline-5 claim 7 ,6-dione (phd)).10. The catalytic system of claim 9 , wherein one or more of R ...

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Номер записи: 20
03-03-2022 дата публикации

ISOCARBOSTYRIL ALKALOIDS AND FUNCTIONALIZATION THEREOF

Номер: US20220064176A1
Автор: BINGHAM Tanner W., HERNANDEZ Lucas William, SARLAH David
Принадлежит: The Board of Trustees of the University of Illinois

Enantioselective total syntheses of the anticancer isocarbostyril alkaloids (+)-7-deoxypancratistatin, (+)-pancratistatin, (+)-lycoricidine, and (+)-narciclasine are described. Our strategy for accessing this unique class of natural products is based on the development of a Ni-catalyzed dearomative trans-1,2-carboamination of benzene. The effectiveness of this dearomatization approach is notable, as only two additional olefin functionalizations are needed to construct the fully decorated aminocyclitol cores of these alkaloids. Installation of the lactam ring has been achieved through several pathways and a direct interconversion between natural products was established via a late-stage C-7 cupration. Using this synthetic blueprint, we were able to produce natural products on a gram scale and provide tailored analogs with improved activity, solubility, and metabolic stability.

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Номер записи: 21
25-02-2021 дата публикации

Redox Dehydration Coupling Catalysts and Methods Related Thereto

Номер: US20210053044A1
Автор: Lanny Steven Liebeskind, Pavan Kumar Reddy Gangireddy, Srirama Murthy Akondi
Принадлежит: EMORY UNIVERSITY

This disclosure relates to synthetic coupling methods using catalytic molecules. In certain embodiments, the catalytic molecules comprise heterocyclic thiolamide, S-acylthiosalicylamide, disulfide, selenium containing heterocycle, diselenide compound, ditelluride compound or tellurium containing heterocycle. Catalytic molecules disclosed herein are useful as catalysts in the transformation of hydroxy group containing compounds to amides, esters, ketones, and other carbon to heteroatom or carbon to carbon transformations

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Номер записи: 22
23-02-2017 дата публикации

N-SUBSTITUTED PYRIDINIOPHOSPHINES, PROCESSES FOR THEIR PREPARATION AND THEIR USE

Номер: US20170050180A1
Автор: ALCARAZO Manuel, TINNERMANN Hendrik, WILLE Christian
Принадлежит: STUDIENGESELLSCHAFT KOHLE MBH

The present invention deals with the synthesis and applications of new cationic compounds being useful as metal ligands. Specifically, N-alkyl/aryl substituted pyridiniophosphines are prepared and used as ligands for transition metals. The so-obtained metal complexes and their use as catalysts in chemical synthesis is also described. It also worth mentioning that N-alkyl/aryl pyridiniophosphines can be synthesized through a short, scalable and highly modular route. 2. N-substituted pyridiniophosphine of the general formula (I) according to claim 1 , wherein R claim 1 , Rand Reach represent hydrogen and Rrepresents halogen claim 1 , a linear claim 1 , cyclic or branched C-C-alkyl claim 1 , -alkenyl or -alkynyl group or C-C-aryl or -heteroaryl group claim 1 , which can have suitable substituents selected from halogen claim 1 , ═O claim 1 , —OH claim 1 , —OR claim 1 , —NH claim 1 , —NHR claim 1 , —NR claim 1 , aryl or Ris bound to the pyridinio ring via —O— or —NR—; and{'sup': 5', '6', '7', '−, 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'R, R, R, R and X have the meaning as given in .'}3. N-substituted pyridiniophosphine of the general formula (I) according to claim 1 , wherein X is an anion selected from Cl claim 1 , Br claim 1 , I claim 1 , PF claim 1 , SbF claim 1 , BF claim 1 , ClO claim 1 , FCCOO claim 1 , TfN claim 1 , (Tf=trifluoromethanesulfonyl) claim 1 , TfO claim 1 , tosyl claim 1 , [B[3 claim 1 ,5-(CF)CH]] claim 1 , [B(CF)] claim 1 , and [Al(OC(CF))].5. A metal complex comprising as a ligand a N-substituted pyridiniophosphine of the general formula (I) according to .7. The metal complex as claimed in claim 6 , wherein the ligand L can be chosen from halogen claim 6 , CN claim 6 , CO claim 6 , alkenes claim 6 , cycloalkenes and/or alkynes claim 6 , arenes claim 6 , nitriles claim 6 , phosphines claim 6 , amines claim 6 , pyridines or carboxylates.8. The metal complex as claimed in claim 6 , wherein M is selected from Ag claim 6 , Au claim 6 , Ru claim ...

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Номер записи: 23
26-02-2015 дата публикации

NONPOLAR PHASE-SOLUBLE METATHESIS CATALYSTS

Номер: US20150057449A1
Автор: Bazzi Hassan S., Bergbreiter David E., Hongfa Chayanant
Принадлежит: The Texas A&M University System

One embodiment of the invention provides polyisobutylene (PIB) oligormers that are end-functionalized with ruthenium (Ru) catalysts. Such nonpolar catalysts can be dissolved in nonpolar solvents such as heptane, or any other nonpolar solvent that is otherwise not latently biphasic (i.e., if two or more solvent components are present, they remain miscible with each other throughout the entire reaction process, from the addition of substrate through to the removal of product). Substrate that is dissolved in the nonpolar solvent with the catalyst is converted into product. The lower solubility of the product in the nonpolar solvent renders it easily removable, either by extraction with a more polar solvent or by applying physical means in cases where the product precipitates from the nonpolar solvent. In this manner the catalysts are recycled; since the catalysts remain in the nonpolar solvent, a new reaction can be initiated simply by dissolving fresh substrate into the nonpolar solvent. 124-. (canceled)25. A reaction composition comprising:a) a nonpolar solvent, wherein the solvent is not latently biphasic;b) a catalyst that is complexed to a nonpolar support comprising polyisobutylene, wherein the catalyst-support complex is dissolved in the solvent; andc) a substrate molecule dissolved in the solvent, wherein the molecule is a substrate for the catalyst, and wherein the product of a reaction of the molecule with the catalyst is less soluble in the solvent compared to the molecule.26. The composition of claim 25 , wherein the product is completely insoluble in the solvent.27. The composition of claim 25 , wherein the solvent comprises an alkane.28. The composition of claim 27 , wherein the solvent comprises heptane. This application is a continuation of U.S. application Ser. No. 12/286,745, which claims the benefit of priority to U.S. Provisional Application No. 60/997,093, filed Oct. 1, 2007, which is herein incorporated by reference in its entirety.The invention ...

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Номер записи: 24
26-02-2015 дата публикации

HYDROGENATION OF BIOMASS-DERIVED SUBSTRATES

Номер: US20150057457A1
Автор: Gordon John C., Waidmann Christopher R.
Принадлежит: Los Alamos National Security, LLC

The α,β-unsaturated ketone moiety of a substrate representative of non-food based biomass was hydrogenated to the corresponding saturated alcohol moiety using a composition including (1) a copper salt; (2) a phosphine; (3) a polar aprotic solvent such as acetonitrile, and (4) a compound suitable for providing hydrogen for the hydrogenation, such as a suitable silane material or a suitable siloxane material. 1. A composition effective for hydrogenation of an α ,β-unsaturated ketone moiety of a substrate comprising a furan ring , said catalyst prepared by combining a copper salt , a phosphine , a dry polar aprotic solvent , and a silane material or siloxane material , said silane material or siloxane material suitable for providing hydrogen for hydrogenation of the α ,β-unsaturated ketone moiety of a substrate.2. The composition of wherein the phosphine is selected from bis(diethylphosphino)ethane and 1 claim 1 ,3-bis(diisopropylphosphino)propane.3. The composition of claim 2 , wherein the copper salt comprises copper(II) fluoride.4. The composition of claim 2 , wherein the copper salt is copper(I) chloride and the composition further comprises a material that reacts with copper(I) chloride to provide a composition effective for hydrogenation of the α claim 2 ,β-unsaturated ketone moiety of the substrate comprising a furan ring.5. The composition of claim 1 , wherein the suitable silane material comprises phenyl silane.6. The composition of claim 1 , wherein the suitable siloxane material comprises polymethylhydrosiloxane.7. The composition of claim 1 , wherein the solvent comprises acetonitrile.8. A process for hydrogenation of an α claim 1 ,β-substituted moiety of a furan-containing substrate claim 1 , comprising reacting the substrate with a composition prepared by combining a copper salt claim 1 , a phosphine claim 1 , a polar aprotic solvent claim 1 , and a material suitable for providing hydrogen for the hydrogenation claim 1 , said suitable material selected ...

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Номер записи: 25
21-02-2019 дата публикации

N-HETEROCYCLIC CARBENE (NHC) BASED LIGANDS AND RELATED METHODS

Номер: US20190054455A1
Автор: Kilyanek Stefan M., Thapa Rajesh
Принадлежит:

Polydentate macrocyclic NHCs (NHC ligands) and related methods are disclosed. Such ligands advantageously facilitate a variety of ligand coordination modes and stabilize oxidation states of metal complexes with a number of coordination environments and shapes. The NHC ligands described herein comprise pendant groups configured to facilitate a variety of reactions including: cis-trans isomerization, proton shuttling and facilitating changes in coordination environments as a result of redox reactions. 4. The ligand of claim 1 , wherein Rand Rare both methyl benzene.5. The ligand of claim 1 , wherein the composition comprises a salt and the salt is a halide salt.6. The ligand of claim 1 , wherein the composition comprises a cis isomer.7. The ligand of claim 1 , wherein the composition comprises a trans isomer.9. The catalyst of claim 8 , wherein M is Ag claim 8 , Pd claim 8 , Ni claim 8 , Pt claim 8 , Ru claim 8 , Re claim 8 , or Ir.12. The catalyst of claim 8 , wherein Rand Rare both methyl benzene.13. The catalyst of claim 8 , wherein the catalyst comprises C2 symmetric cis metal complex.14. The catalyst of claim 8 , wherein the catalyst comprises a C2 symmetric trans metal complex. The present application claims priority pursuant to 35 U.S.C. § 119(e) to U.S. Provisional Patent Application Ser. No. 62/547,253 filed Aug. 18, 2017 which is incorporated herein by reference in its entirety.N-heterocyclic carbenes (NHCs) are ubiquitous ligands often used to support a variety of metal environments for catalysis. However, existing NHCs have limited scopes and lifetimes. It is challenging to obtain catalysts that can be reliably employed in industrial processes.Accordingly, a need exists for improved NHC ligands (macrocycles) and related methods.Polydentate macrocyclic NHCs (NHC ligands) and related methods are disclosed. Such ligands advantageously facilitate a variety of ligand coordination modes and stabilize oxidation states of metal complexes with a number of ...

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Номер записи: 26
03-03-2016 дата публикации

Tetrapeptide Copper Catalysts Capable Of Oxidizing Hydrocarbons At Room Temperature

Номер: US20160060292A1
Автор: NICHOLAS-LEWIS Latisha Candice, SINGH Gurdial
Принадлежит:

The present invention relates to peptide copper catalysts capable of oxidizing hydrocarbons at room temperature. 1. A catalyst containing a copper metal and peptide , wherein the peptide is a tetrapeptide or pentapeptide is capable of catalytic oxidation of a hydrocarbon.2. The catalyst in claim 1 , wherein the peptide is a tetrapeptide.3. The catalyst in claim 1 , wherein the tetrapeptide is a straight chain tetrapeptide comprising four amino acids.4. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 3 , Aspartate claim 3 , Glutamate claim 3 , Glycine claim 3 , Histidine claim 3 , Methionine and Tryptophan.5. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 3 , Aspartate claim 3 , Glutamate claim 3 , Histidine claim 3 , Methionine and Tryptophan.6. The catalyst in claim 5 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 5 , Glutamate and Histidine.7. The catalyst in claim 5 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 5 , Aspartate claim 5 , Methionine and Tryptophan.8. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids having at least Glutamate and Histidine.9. The catalyst in claim 3 , wherein the peptide is selected from any one of the following straight chain tetrapeptides having a peptide sequence comprising: AlaHisAlaGlu; AlaMetAspTrp; AlaHisGlyGlu; AlaHisHisHis; GlyHisHisHis; GluHisAspHis; HisMetAspTrp; and AspHisAspHis.10. The catalyst in claim 3 , wherein the peptide is selected from any one of the following straight chain tetrapeptides having a peptide sequence comprising: AlaHisAlaGlu; and AlaMetAspTrp.11. A method for catalytic oxidation of a hydrocarbon using a catalyst ...

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Номер записи: 27
21-02-2019 дата публикации

CATALYSTS

Номер: US20190055352A1
Автор: Chapman Andy, Chartoire Anthony, Hollis Emmalina, Kember Michael, Keyworth Colin, Williams Charlotte
Принадлежит:

The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): 2. The catalyst of claim 1 , wherein at least one of Mor Mis Ni(II).3. The catalyst of claim 1 , wherein one of Mor Mis selected from Ni(II) and Ni(III)-X and the remaining occurrence of Mand Mis selected from Zn(II) claim 1 , Cr(III)-X claim 1 , Cr(II) claim 1 , Co(III)-X claim 1 , Co(II) claim 1 , Cu(II) claim 1 , Mn(III)-X claim 1 , Mn(II) claim 1 , Mg(II) claim 1 , Ni(II) claim 1 , Ni(III)-X claim 1 , Fe(II) claim 1 , Fe(III)-X claim 1 , Ti(II) claim 1 , Ti(III)-X claim 1 , V(II) claim 1 , V(III)-X claim 1 , Ge(IV)-(X)and Ti(IV)-(X).4. The catalyst of claim 3 , wherein the remaining occurrence of Mand Mis selected from Zn(II) claim 3 , Cr(III)-X claim 3 , Co(II) claim 3 , Cu(II) claim 3 , Mn(II) claim 3 , Mg(II) claim 3 , Ni(II) claim 3 , Ni(III)-X claim 3 , Fe(II) claim 3 , Fe(III)-X and V(II).5. The catalyst of claim 3 , wherein the remaining occurrence of Mand Mis selected from Zn(II) claim 3 , Cr(III)-X claim 3 , Co(II) claim 3 , Mn(II) claim 3 , Mg(II) claim 3 , Ni(II) claim 3 , Ni(III)-X claim 3 , Fe(II) claim 3 , and Fe(III)-X.6. The catalyst of claim 3 , wherein the remaining occurrence of Mand Mis selected from any of: Zn(II) claim 3 , Mg(II) claim 3 , Ni(II) claim 3 , Co(II) claim 3 , Co(III)-X and Ni(III)-X.7. The catalyst of claim 1 , wherein both Mand Mare Ni(II).8. The catalyst of claim 1 , wherein Ris selected from substituted or unsubstituted alkylene and substituted or unsubstituted arylene.9. The catalyst of claim 1 , wherein Ris selected from substituted or unsubstituted alkylene claim 1 , alkenylene claim 1 , alkynylene claim 1 , heteroalkylene claim 1 , heteroalkenylene claim 1 , heteroalkynylene claim 1 , arylene claim 1 , and cycloalkylene.10. The catalyst of claim 1 , wherein Ris selected ...

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Номер записи: 28
20-02-2020 дата публикации

METAL-ORGANIC FRAMEWORKS FOR THE ADSORPTION AND CATALYTIC TRANSFORMATIONS OF CARBON DIOXIDE

Номер: US20200055020A1
Автор: Morris Amanda, Zhu Jie
Принадлежит:

Novel crystalline porous materials known as metal-organic frameworks (MOFs) and methods for their synthesis are provided herein. The MOFs include a M(μ-OH)(OH)(μ,η-(OC)cyclam)cluster, and a metal atom coordinated to the one or more cyclam of the cluster, wherein M is Zr or Hf, and the metal atom is any one of Cu, Ni, Cr, Ru, Co, and Gd. The MOFs can be used as an adsorbent, alone or in a medium with other components, of CO. The MOFs can also be used as a catalyst for the transformation of COand epoxides to cyclic carbonates. The MOFs can also be used in the electrochemical catalytic reduction of CO. The MOFs can also be used for photocatalytic COreduction for the production of carbon-based fossil fuels. The MOFs can also be used for light-induced nitric oxide (NO) release. The MOFs can also be used as magnetic resonance imaging (MRI) agents. 1. A metal-organic framework (MOF) , the MOF comprising:{'sub': 6', '3', '8', '8', '2', '2', '8, 'sup': 2', '2, 'a M(μ-OH)(OH)(μ,η-(OC)cyclam)cluster; and'}a metal atom coordinated to the one or more cyclam of the cluster, M is Zr or Hf, and', 'the metal atom is any one of Cu, Ni, Cr, Ru, Co, and Gd., 'wherein'}2. The MOF of claim 1 , wherein M is Zr.3. The MOF of claim 2 , wherein the metal atom is Cu claim 2 , Ni or Co.4. The MOF of claim 2 , wherein the metal atom is Cu or Ni.5. The MOF of claim 2 , wherein the metal atom is Cr or Ru.6. The MOF of claim 2 , wherein the metal atom is Co.7. The MOF of claim 2 , wherein the metal atom is Gd.8. The MOF of claim 1 , wherein the MOF has a BET surface area of about 340 to about 620 m/g.9. The MOF of claim 1 , wherein the MOF has a crystal structure characterized by a I4/m space group.10. An electrochemical COreduction system claim 1 , the system comprising:a conductive substrate; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a film coated on a surface of the conductive substrate, the film comprising an MOF according to .'}11. A COadsorbent medium claim 1 , the medium ...

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Номер записи: 29
28-02-2019 дата публикации

NANOFIBER ELECTROCATALYST

Номер: US20190060888A1
Автор: Chong Lina, Liu Di-Jia
Принадлежит: UCHICAGO ARGONNE, LLC

A nanofibrous catalyst for in the electrolyzer and methods of making the catalyst. The catalysts are composed of highly porous transition metal carbonitrides, metal oxides or perovskites derived from the metal-organic frameworks and integrated into a 3D porous nano-network electrode architecture. The catalysts are low-cost, highly active toward OER, with excellent conductivity yet resistant to the oxidation under high potential operable under both acidic and alkaline environments. 1. A method comprising:preparing a metal organic framework material comprising MOF crystals forming a mixture of MOF crystals suspended in a polymer solution;electrospinning the MOF crystals and polymer mixture, forming porous and interconnected nanofibers having MOF crystals uniformly dispersed;subjecting the metal organic framework containing porous nanofiber to sequential thermolysis, forming catalytic nanofibers with uniformly distributed catalytic sites;wherein the catalytic nanofibers are catalytic for the oxygen evolution reaction for water splitting in either alkaline or acidic aqueous media.2. The method of claim 1 , wherein the polymer solution comprises a polymer selected from the group consisting of polyacrylonitrile (PAN) claim 1 , poly(methylmethacrylate) (PMMA) claim 1 , polyvinylpyrrolidone (PVP). Nylon6 claim 1 ,6 claim 1 , (PA-6 claim 1 ,6 claim 1 ,) Polyurethanes (PU) claim 1 , Polybenzimidazole (PBI) claim 1 , Polycarboate (PC) claim 1 , Polyethylene-co-vinyl acetate (PEVA). Collagen (PEO) claim 1 , polyacrylic acid-polypyrene methanol (PAA-PM) claim 1 , and Polymethacrylate (PMMA).3. The method of claim 2 , wherein concentration of the MOF crystals suspended in the polymers solution is from 0.1 mg/ml to 0.6 mg/ml.4. The method of claim 3 , wherein concentration of the MOF crystals suspended in the polymers solution is from 0.4 mg/ml to 0.6 mg/ml.5. The method of claim 3 , wherein concentration of the MOF crystals suspended in the polymers solution is from 0.1 mg/ml to ...

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Номер записи: 30
12-03-2015 дата публикации

METHOD FOR ADSORBING CARBON DIOXIDE ONTO POROUS METAL-ORGANIC FRAMEWORK MATERIALS, METHOD FOR COOLING POROUS METAL-ORGANIC FRAMEWORK MATERIALS, METHOD FOR OBTAINING ALDEHYDE USING POROUS METAL-ORGANIC FRAMEWORK MATERIALS, AND METHOD FOR WARMING POROUS METAL-ORGANIC FRAMEWORK MATERIALS

Номер: US20150073164A1
Автор: Hato Kazuhito, KOUZAKI TAKASHI, KURABUCHI TAKAHIRO, Nomura Takaiki
Принадлежит:

The present invention provides a method for adsorbing carbon dioxide onto porous metal-organic framework materials, a method for cooling porous metal-organic framework materials, a method for obtaining aldehyde using porous metal-organic framework materials and a method for warming porous metal-organic framework materials. In each method, porous metal-organic framework materials are used while an electric field or an electromagnetic field is applied to the porous metal-organic framework materials, or while a magnetic field or an electromagnetic field is applied to the porous metal-organic framework materials. If an electric field is applied, at least one organic compound included in the porous metal-organic framework materials is a polar compound. Instead, if a magnetic field is applied, at least one metal included in the porous metal-organic framework materials has an unpaired electron. 1. A method for cooling porous metal-organic framework materials , the method comprising:(a) applying an electric field or an electromagnetic field to the porous metal-organic framework materials containing an adsorbate such that the adsorbate is released from the porous metal-organic framework materials, wherein at least one metal ion, and', 'at least one organic compound bound by coordination bond to the at least one metal ion; and, 'the porous metal-organic framework materials contain'}the at least one organic compound is a polar compound.2. The method according to claim 1 , whereinthe adsorbate is selected from the group consisting of water, ammonia, hydrogen fluoride, alcohol, aldehyde, carboxylic acid, amine, amide, imide, fluorinated hydrocarbon and chlorofluorocarbon.3. The method according to claim 1 , whereinthe electric field is an alternating-electric field.4. The method according to claim 1 , whereinthe at least one metal ion is a copper ion.5. The method according to claim 1 , whereinthe at least one organic compound is 1,3-benzene dicarboxylic acid.6. A method for ...

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Номер записи: 31
28-02-2019 дата публикации

FUEL CELL ELECTRODE HAVING POROUS CARBON CORE WITH MACROCYCLIC METAL CHELATES THEREON

Номер: US20190067704A1
Автор: Fossum Kjell, Palmqvist Anders
Принадлежит:

The invention concerns a method for manufacturing of an electrocatalyst comprising a porous carbon support material, a catalytic material in the form of at least one type of metal, and macrocyclic compounds chemically bound to the carbon support and capable of forming complexes with single metal ions of said metal or metals, said method comprising the steps of: i) providing a template capable of acting as pore structure directing agent during formation of a highly porous electrically conducting templated carbon substrate, ii) mixing the template with one or several precursor substances of the catalytic material, the macrocyclic compounds and carbon, iii) exposing the mixture of the template and the precursor substances to a carbonization process during which the precursors react and transform the mixture into a carbonized template composite in winch the carbon part of the composite is chemically bound to macrocyclic compounds present in complexes with the metal or metals. The invention also concerns an electrocatalyst for electrochemical reactions, a method for manufacturing of a membrane electrode assembly using such an electrocatalyst and to a fuel cell making use of such an electrocatalyst. 176-. (canceled)77. A method for manufacturing of an electrocatalyst comprising a porous carbon support material and a catalytic material of metal complexes of macrocyclic compounds chemically bound to the carbon support , said method comprising the steps of:i) providing a template capable of acting as pore structure directing agent during formation of a highly porous electrically conducting template carbon substrate;ii) mixing the template with:1) one or several precursor substances of the carbon support,2) one or several precursor substances of the macrocyclic compounds, and3) one or several metal salts or one or several metal salts in a solvent,wherein the precursor substances of the carbon support and the precursor substances of the macrocyclic compounds may be the same or ...

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Номер записи: 32
17-03-2016 дата публикации

CATALYSTS, LIGANDS AND USE THEREOF

Номер: US20160074852A1
Автор: FLETCHER Stephen Patrick, MAKSYMOWICZ Rebecca Marie, PORTELA Mireia Sidera, ROTH Philippe Marie-Christophe
Принадлежит:

According to the present invention, there is provided a catalytic complex comprising a metal, one or more ligands and one or more counterions, wherein said one or more ligands include a non-racemic chiral ligand and wherein said one or more counterions include a triflimide counterion. Also provided are methods of making said catalytic complex and processes for producing chiral compounds which involve the use of said catalytic complex. In addition, the present invention provides compounds of the formula (2) as defined herein. The compounds of formula (2) may be useful as ligands in catalytic complexes. 125-. (canceled)27. A compound according to claim 26 , wherein the moiety —O—C—O— is a moiety derived from a binaphthol compound claim 26 , e.g. (R)-1 claim 26 ,1′-bi-2-naphthol or (S)-1 claim 26 ,1′-bi-2-naphthol.28. (canceled)29. A compound according to claim 26 , wherein each Ris optionally substituted aryl claim 26 , e.g. phenyl or naphthyl claim 26 , either of which is optionally substituted.30. (canceled)31. A compound according to claim 29 , wherein each Ris phenyl or phenyl substituted with 1 claim 29 , 2 claim 29 , 3 claim 29 , 4 or 5 substituents independently selected from Calkyl (e.g. methyl) claim 29 , halogen (e.g. fluoro) claim 29 , trifluoromethyl and Calkoxy (e.g. methoxy).32. A compound according to claim 31 , wherein each Ris phenyl.33. A compound according to claim 26 , wherein each Ris optionally substituted alkyl claim 26 , e.g. optionally substituted Calkyl claim 26 , e.g. methyl claim 26 , ethyl or propyl.34. (canceled)35. A compound according to claim 33 , wherein each Ris methyl.36. A compound according to claim 26 , wherein Rand R claim 26 , together with the carbon atom to which they are attached claim 26 , form an achiral cyclic organic group claim 26 , e.g. an optionally substituted cycloalkyl group claim 26 , e.g. selected from cyclopentyl claim 26 , cyclohexyl claim 26 , cycloheptyl and cyclooctyl claim 26 , any of which is optionally ...

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Номер записи: 33
18-03-2021 дата публикации

3,3,3',3'-TETRAMETHYL-1,1'-SPIROBIINDANE-BASED PHOSPHINOOXAZOLINE LIGAND COMPOUND, PREPARATION METHOD AND USES OF THE SAME

Номер: US20210079030A1
Автор: GU Haorui, Lin Xufeng, SUN Weiye
Принадлежит:

The invention discloses a tetramethyl-7,7′-spirobiindane-based phosphinooxazoline ligand compound and its preparation method and use. The phosphinooxazoline ligand compound is a compound having a structure shown in general formula I or an enantiomer, a raceme or a diastereoisomer thereof. The phosphinooxazoline ligand obtained through a series of reaction steps using cheap and easily available 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-6,6′-diol as a starting material. The novel phosphinooxazoline ligand developed in the invention can be used to organic catalytic reactions, especially as a chiral phosphinooxazoline ligand widely used in metal-asymmetric catalytic reactions, having economical practicality and industrial application prospects. 4. (canceled)5. (canceled)6. (canceled) The invention relates to the technical field of organic synthetic chemistry, and relates to a novel 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based phosphinooxazoline ligand compound, a preparation method and a use thereof. Such a ligand can be used in a metal-catalyzed coupling reaction and an asymmetric reaction.Asymmetric catalytic synthesis is one of the most intensive research areas in modem synthetic chemistry. This technique is one of the most direct and effective chemical methods for obtaining chiral compounds. It has advantages such as chiral proliferation, high enantio-selectivity, economy, and ease industrialization. It is challenging in the field of synthetic chemistry to perform efficient and highly selective asymmetric catalytic reactions, and one of the pivotal scientific issues thereof is to develop or discover new and efficient chiral ligands and their catalysts. The design and synthesis of chiral ligands have been advancing rapidly, many excellent chiral phosphinooxazoline ligands based on various skeletons, as shown below, have been synthesized, and some of them have been applied in the industrial production. However, the chiral ligands are not for all-purpose due to the ...

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Номер записи: 34
26-03-2015 дата публикации

LIGANDS DESIGNED TO PROVIDE HIGHLY ACTIVE CATALYST COMPLEXES

Номер: US20150087795A1
Автор: Burdynska Joanna, Elsen Andrea, KWAK Yungwan, MATYJASZEWSKI KRZYSZTOF, SCHROEDER Kristin
Принадлежит:

A series of ligands with site specific electron donating substituents that form a catalyst complex with a transition metal and are suitable for catalysis of atom transfer radical reactions, including ATRP are described. Faster catalysis rates were observed allowing for low catalyst concentrations and linear increases in molecular weight with monomer conversion, and narrow molecular weight distributions. Cyclic voltammetry revealed that increasing the strength and number of conjugated electron donating groups resulted in more stable complexes and larger ATRP equilibrium constants. 1. A catalyst complex for a redox-based atom transfer radical addition reaction , an atom transfer radical coupling reaction or a controlled radical polymerization reaction , the catalyst comprising:a transition metal; anda ligand comprising from 2 to 6 heteroatom containing groups capable of bonding to or chelating with a transition metal, wherein at least one of the heteroatom containing groups comprises a structure selected from an aromatic ring comprising an anionic heteroatomic donor substituent or a nitrogen containing heteroaromatic ring, wherein the aromatic ring or heteroaromatic ring further comprises one or more electron donating substituents,wherein the ligand forms a ligand/metal catalyst complex with the transition metal.2. The catalyst complex according to claim 1 , wherein the one or more electron donating substituents are located on a ring atom that is meta- or para- to the anionic heteroatomic donor substituent or the nitrogen of the heteroaromatic ring.3. The catalyst complex according to claim 1 , wherein the anionic heteroatomic donor substituent is selected from —O claim 1 , —S claim 1 , —CO claim 1 , —SO claim 1 , and —NR″ claim 1 , where R″ is —H or (C-C)alkyl.4. The catalyst complex according to claim 1 , wherein the one or more electron donating substituents are independently selected from straight chain (C-C)alkyl claim 1 , branched (C-C)alkyl claim 1 , —NR claim ...

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Номер записи: 35
23-03-2017 дата публикации

CATALYST AND BATTERY COMPONENTS DERIVED FROM CONDENSATION REACTIONS WITH CARBA-CLOSO-DODECABORATE AMINES

Номер: US20170084954A1
Автор: CHAN Allen, EL HELLANI Ahmad, LAVALLO Vincent
Принадлежит:

Described herein is the fusion of two families of unique carbon-containing molecules that readily disregard the tendency of carbon to form four chemical bonds, namely N-heterocyclic carbenes (NHCs) and carborane anions. Deprotonation of an anionic imidazolium salt with lithium diisopropylamide at room temperature leads to a mixture of lithium complexes of C-2 and C-5 dianionic NHC constitutional isomers as well as a trianionic (C-2, C-5) adduct. Judicious choice of the base and reaction conditions allows for the selective formation of all three stable polyanionic carbenes. In solution, the so-called abnormal C-5 NHC lithium complex slowly isomerizes to the normal C-2 NHC, and the process can be proton catalyzed by the addition of the anionic imidazolium salt. These results indicate that the combination of two unusual forms of carbon atoms can lead to unexpected chemical behavior, and that this strategy paves the way for the development of a broad new generation of NHC ligands for catalysis. 2. The carborane compound according to claim 1 , wherein alkyl claim 1 , aryl claim 1 , silyl claim 1 , siloxy claim 1 , alkoxy claim 1 , and aryloxy in Rare optionally substituted with a member independently selected from the group consisting of hydrogen claim 1 , halogen claim 1 , hydroxyl claim 1 , and hydroxide.3. The carborane compound according to claim 1 , wherein Ris selected from alkyl and aryl.5. The carborane compound according to claim 1 , wherein Hetis selected from the group consisting of an N-heterocyclic carbene (NHC) moiety or an NHC precursor moiety.8. The carborane compound according to claim 7 , wherein{'sup': '1', 'each Ris independently selected from H, halogen, alkyl, aryl, silyl, siloxy, alkoxy, and aryloxy, and wherein'}{'sup': '1', 'each alkyl, aryl, silyl, siloxy, alkoxy, and aryloxy in Ris optionally substituted with a member independently selected from the group consisting of halogen, hydroxyl, and hydroxide.'}9. The carborane compound according to ...

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Номер записи: 36
09-04-2015 дата публикации

Molecular Catalysts Capable of Catalyzing Oxidation of Hydrocarbons and Method for Oxidizing Hydrocarbons

Номер: US20150099876A1
Автор: Chih-Cheng Liu, Chung-Yuan Mou, Penumaka NAGABABU, Ping-Yu Chen, Ravirala RAMU, Sheng-Fa Yu, Suman MAJI, Sunney Ignatius CHAN
Принадлежит: Academia Sinica, National Taiwan University NTU

This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to molecular catalysts for efficient catalytic oxidation of hydrocarbons, such as hydrocarbons from natural gas. The molecular catalytic platform provided herein is capable of the facile oxidation of hydrocarbons, for example, under ambient conditions such as near room temperature and atmospheric pressure.

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Номер записи: 37
28-03-2019 дата публикации

METHODS OF USING MULTI-LIGAND METAL COMPLEXES TO PERFORM OXIDATIVE CATALYTIC PRETREATMENT OF LIGNOCELLULOSIC BIOMASS

Номер: US20190091674A1
Автор: Bansal Namita, Bhalla Aditya, Hegg Eric L., Hodge David B., Li Zhenglun, Mathrubootham Vaidyanathan
Принадлежит:

A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex_adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2, 2′ bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed. 110-. (canceled)11. A method comprising:catalytically delignifying alkaline-pretreated lignocellulosic biomass with a homogeneous multi-ligand metal complex catalyst and an oxidant in an oxidation reaction, wherein said metal complex comprises a combination of a metal-ligand complex and at least one metal coordinating ligand selected from pyridine, 1,10-phenanthroline, ethylenediamene, histidine, glycine and combinations thereof, wherein radicals formed during the oxidation reaction react with lignin present in the alkaline-pretreated lignocellulosic biomass to solubilize the lignin to produce a catalytically delignified lignocellulosic biomass.12. The method of wherein the alkaline-pretreated lignocellulosic biomass claim 11 , the multi-ligand metal complex and the oxidant form a solution having a pH of at least 11.5.13. The method of wherein the oxidant is hydrogen peroxide claim 12 , the radicals formed during the oxidation reaction are hydroxyl radicals claim 12 , and the multi-ligand metal complex is a multi-ligand copper complex.14. The method of wherein the copper complex is a copper(II) 2 claim 13 ,2′-bipyridine complex (Cu(bpy)) modified to contain at least one additional metal-coordinating ligand.15. The method of wherein said additional metal-coordinating ligand is ethylenediamine.16. The method of wherein the oxidant is added at a gradual rate equal to or less than a rate of consumption of the oxidant by the alkaline-pretreated lignocellulosic biomass and the multi-ligand metal complex.17. (canceled)18. The method of wherein the method ...

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Номер записи: 38
28-03-2019 дата публикации

Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation

Номер: US20190091676A1
Автор: Huang Yi, WANG Haijun, Wu Chunyan, YUAN Wenwen
Принадлежит:

The present disclosure discloses an immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation, belonging to the technical field of metalloporphyrin catalytic application. The immobilized metalloporphyrin catalyst is used for catalyzing furfural to prepare maleic acid and is good in catalytic effect, mild in reaction conditions and capable of greatly reducing the energy consumption required in the prior art. The catalyst disclosed by the present disclosure can provide a good microenvironment for a reaction, so that the yield and selectivity of maleic acid are increased; and according to a method disclosed by the present disclosure, the conversion ratio of furfural is 20.4%-95.6%, the yield of maleic acid is 10%-56.1%, and the selectivity is 43.6%-76.1%. Meanwhile, the catalyst is easy to separate and environmentally friendly and may be recycled for many times. 1. A method for preparing maleic acid by catalytically oxidizing furfural , comprising carrying out a reaction of catalytically oxidizing furfural by using an immobilized metalloporphyrin catalyst , wherein furfural serves as a substrate and oxygen serves as an oxidant , and wherein the immobilized metalloporphyrin catalyst is obtained after combining metalloporphyrin with a molecular sieve carrier.2. The method according to claim 1 , wherein the molecular sieve carrier is selected from a group consisting of MCM-41 claim 1 , SBA-15 claim 1 , ZSM-5 claim 1 , and a combination thereof.4. The method according to claim 1 , wherein the metalloporphyrin is substituted tetraphenylporphyrin iron.5. The method according to claim 1 , wherein reaction temperature of catalytic oxidation is 70-120° C. claim 1 , reaction time is 3-12 h claim 1 , and applied reaction pressure is 0.2-1.2 MPa.6. The method according to claim 1 , wherein mass ratio of the catalyst to the substrate is 1:15 to 1:3.7. The method according to claim 1 , further comprising separating the catalyst by filtration after ending ...

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Номер записи: 39
26-03-2020 дата публикации

Metathesis Catalyst System for Polymerizing Cycloolefins

Номер: US20200094234A1
Автор: Blok Edward J., Galuska Alan A., Jain Anupriya, LIN YEN-HAO, Luo Lubin, Zabula Alexander V.
Принадлежит:

A process to form a cyclic olefin polymerization catalyst which includes contacting a metal alkoxide with a transition metal halide to form a transition metal precatalyst, and contacting the transition metal precatalyst with a metal alkyl activator to form the activated catalyst comprising a transition metal carbene moiety. A cyclic olefin polymerization process is also disclosed. 6. The process of claim 5 , wherein the reaction mixture further comprises a metal alkyl activator (A) according to the formula MRX{'sup': 'u', 'wherein Mis a Group 1, 2, or 13 metal of valance u, preferably Li, Na, Ca, Mg, Al, or Ga;'}a is 1, 2, or 3;a≤u; andwhen present, X is halogen.7. The process of claim 1 , wherein Mis W claim 1 , Mo claim 1 , Nb claim 1 , or Ta;wherein X is Cl, F or a mixture thereof;or a combination thereof.8. The process of claim 1 , wherein two or more R′O— ligands are connected to form a single bidentate chelating moiety.13. The process of claim 1 , wherein a molar ratio of Mto M-R in metal alkyl activator MRXis from 1 to 2 to 1 to 15.14. The process of claim 1 , wherein the alkoxy ligand R′O— comprises a Cto Caromatic moiety and wherein the O atom directly bonds to the aromatic ring.23. A cyclic olefin polymerization process comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sub': 4', '20, 'contacting a cyclic olefin polymerization catalyst according to with a C-Ccyclic olefin monomer comprising at least one cyclic olefin moiety in a polymerization reactor under conditions sufficient to form a reaction product mixture comprising a polymer, unreacted monomer, catalyst, and optionally a solvent; and'}recovering the polymer.24. The process of claim 23 , further comprising:i) separating the monomer from the reaction product mixture and recycling the monomer to the polymerization reactor;ii) contacting the recovered catalyst with an activator prior to recycling to the polymerization reactor;or a combination thereof.25. The process according to claim 23 , ...

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Номер записи: 40
12-04-2018 дата публикации

Supported Metal Catalysts

Номер: US20180099923A1
Автор: Bishop Peter Trenton, Cookson James, Hancock Frederick Earnest, Hawker Steven, McNair Robert John
Принадлежит:

The present invention relates to supported metal catalysts, wherein the catalysts are modified by at least one amine, a method for the preparation thereof and hydrogenation processes utilising the supported metal catalysts. 2. The supported metal catalyst of claim 1 , wherein the support is carbon claim 1 , alumina claim 1 , calcium carbonate claim 1 , titania claim 1 , silica claim 1 , zirconia claim 1 , ceria claim 1 , or a combination thereof.3. The supported metal catalyst of claim 2 , wherein the alumina is alpha-AlO claim 2 , beta-AlO claim 2 , gamma-AlO claim 2 , delta-AlO claim 2 , theta-AlOor a combination thereof.4. The supported metal catalyst of claim 2 , wherein the carbon is activated carbon claim 2 , carbon black claim 2 , graphite claim 2 , or a combination thereof.5. (canceled)6. (canceled)7. The supported metal catalyst of claim 1 , wherein the metal is ruthenium claim 1 , rhodium claim 1 , palladium claim 1 , osmium claim 1 , iridium claim 1 , platinum claim 1 , gold claim 1 , silver claim 1 , copper claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , or a combination thereof.8. The supported metal catalyst of claim 1 , wherein the metal is palladium claim 1 , platinum claim 1 , gold claim 1 , or a combination thereof.9. The supported metal catalyst of claim 1 , wherein the Group VIII or IB metal is present in a range of from 0.01 wt % to 20 wt % claim 1 , relative to the total weight of the supported metal catalyst.10. The supported metal catalyst of claim 1 , wherein the amine is a natural amino acid claim 1 , non-natural amino acid claim 1 , peptide claim 1 , alkylamine claim 1 , alkyldiamine claim 1 , alkylpolyamine claim 1 , or combinations thereof.11. The supported metal catalyst of claim 10 , wherein the amine is lysine claim 10 , glycine claim 10 , proline claim 10 , alanine claim 10 , serine claim 10 , phenylalanine claim 10 , asparagine claim 10 , aspartic acid claim 10 , valine claim 10 , butylamine claim 10 , 6-aminocaproic acid ...

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Номер записи: 41
23-04-2015 дата публикации

ASYMMETRIC CATALYSTS

Номер: US20150112066A1
Автор: Canary James, Mortezaei Shahab
Принадлежит: New York University

The present invention relates to asymmetric catalysts, including redox-reconfigurable asymmetric catalysts. Methods of producing compounds having one or more stereocenters using the asymmetric catalysts of the present invention are also disclosed. 4. The catalyst according to claim 1 , wherein Ris a lower alkyl.5. The catalyst according to claim 1 , wherein Ris hydrogen.6. The catalyst according to claim 1 , wherein each catalytic moiety is selected from the group consisting of (thio)ureas; guanidines claim 1 , amides claim 1 , phenols claim 1 , carboxylic acids claim 1 , and other hydrogen bond donating groups; and a moiety of formula -E-NH—C(=G)-NH-E claim 1 , wherein Eand Eare each independently absent claim 1 , an alkyl claim 1 , an aryl claim 1 , or a heteroaryl and G is O claim 1 , S claim 1 , NR claim 1 , or —NR claim 1 , wherein each R is independently hydrogen claim 1 , an alkyl claim 1 , an alkenyl claim 1 , an alkynyl claim 1 , an aminyl claim 1 , a carbonyl claim 1 , a cycloalkyl claim 1 , a heterocyclyl claim 1 , an aryl claim 1 , a heteroaryl claim 1 , an arylalkyl claim 1 , or an acyl.7. The catalyst according to claim 6 , wherein each catalytic moiety is a moiety of formula -E-NH—C(=G)-NH-E.8. The catalyst according to claim 1 , wherein B or D is sulfur or selenium.9. The catalyst according to claim 1 , wherein B or D is oxygen.10. The catalyst according to claim 1 , wherein one of B and D is sulfur or selenium and the other of B and D is oxygen.11. The catalyst according to claim 1 , wherein M is Cu(I) claim 1 , Cu(II) claim 1 , Ag(I) claim 1 , Hg(II) claim 1 , Ni(II) claim 1 , Cd(II) claim 1 , Zn(II) claim 1 , Fe(II) claim 1 , Fe(III) claim 1 , Co(II) claim 1 , or another first row transition metal of oxidation state II or higher.12. The catalyst according to claim 1 , wherein the bond between M and B present and the bond between M and D is absent.13. The catalyst according to claim 1 , wherein the bond between M and B is absent and the bond ...

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Номер записи: 42
02-04-2020 дата публикации

Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation

Номер: US20200101449A1
Автор: Chunyan Wu, Haijun Wang, Wenwen YUAN, Yi Huang
Принадлежит: JIANGNAN UNIVERSITY

The present disclosure discloses an immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation, belonging to the technical field of metalloporphyrin catalytic application. The immobilized metalloporphyrin catalyst is used for catalyzing furfural to prepare maleic acid and is good in catalytic effect, mild in reaction conditions and capable of greatly reducing the energy consumption required in the prior art. The catalyst disclosed by the present disclosure can provide a good microenvironment for a reaction, so that the yield and selectivity of maleic acid are increased; and according to a method disclosed by the present disclosure, the conversion ratio of furfural is 20.4%-95.6%, the yield of maleic acid is 10%-56.1%, and the selectivity is 43.6%-76.1%. Meanwhile, the catalyst is easy to separate and environmentally friendly and may be recycled for many times.

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Номер записи: 43
11-04-2019 дата публикации

COMPOSITION OF MATTER

Номер: US20190106440A1
Автор: MURRU Siva, SRIVASTAVA Radhey S.
Принадлежит:

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafine, Naftifine 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral 13-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of 13-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent--en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. A novel chiral copper-BINAM nitrosoarene complex is also set forth. 1. A chemical compound comprising:a. a copper atom;b. two nitrosoarenes;c. two nitrogen donor ligands; andd. two counterions.2. The chemical compound of wherein the compound is a chiral coppernitrosoarene complex.3. The chemical compound of wherein at least one ligand is chiral.4. The chemical compound of wherein the copper atom is bonded to two chiral nitrogen-donor ligands claim 1 , such as BINAM claim 1 , NOBIN claim 1 , and related substituted ligands.5. The chemical compound of wherein the copper atom is bonded to two nitrosoarenes claim 1 , such as nitrosobenzene claim 1 , and related substituted nitrosobenzenes.6. The chemical compound of wherein the copper complex is associated with at least one counter ion such as triflates or halides.7. The chemical compound synthesized from the process of combining copper (II) salt [Cu(X)2] ...

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Номер записи: 44
09-04-2020 дата публикации

PRODUCTION OF METAL-ORGANIC FRAMEWORKS

Номер: US20200108369A1
Автор: BARTON Timothy Raymond, Batten Michael, HADLEY Trevor Deon, HILL Matthew Roland, Lim Kok Seng, MONCH Andreas Alexander, POLYZOS Anastasios, RUBIO MARTINEZ Marta
Принадлежит: Commonwealth Scientific and Industrial Research Organisation

An apparatus for producing metal organic frameworks, comprising: a tubular flow reactor comprising a tubular body into which, in use, precursor compounds which form the metal organic framework are fed and flow, said tubular body including at least one annular loop. 1. A process for producing metal organic frameworks , the process comprising:mixing at least two different precursor solutions for forming the metal organic framework (MOF) through inline mixing to form a solution mixture, the precursor solutions comprising a first precursor solution comprising at least one multidentate linking ligand in water; and a second precursor solution comprising a metal cluster or metallic salt thereof in water,introducing the solution mixture into an apparatus which comprises: a tubular flow reactor which comprises a tubular body having an inlet into which, in use, the solution mixture is fed and flows, said tubular body including at least one annular loop comprising a coil; andpromoting a reaction within the tubular flow reactor to form the metal organic framework,wherein the precursor solutions are mixed through inline mixing in a feed conduit fluidly connected to the inlet of the tubular body and the resulting solution mixture being fed into said inlet,and wherein the solution mixture flows through said tubular body mixing the precursor compounds therein to produce the metal organic frameworks.2. The process according to claim 1 , wherein the two or more precursor solutions are mixed at or proximate said inlet.3. The process according to claim 2 , wherein the apparatus further comprises an inline mixer located at or proximate the inlet to the tubular body claim 2 , the inline mixer mixing the precursor solutions through inline mixing in said feed conduit fluidly connected to the inlet of the tubular body.4. The process according to claim 1 , wherein the apparatus further comprises a flow restriction device comprising a back-pressure controller downstream of the tubular reactor ...

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Номер записи: 45
16-04-2020 дата публикации

HIGH MOLECULAR WEIGHT POLY(PHENYLENE ETHER) AND PROCESS FOR THE PREPARATION THEREOF

Номер: US20200115549A1
Автор: Dai Jianguo, TARKIN-TAS EYLEM
Принадлежит:

A method for preparing a poly(phenylene ether) includes oxidatively polymerizing a poly(phenylene ether) starting material having an initial intrinsic viscosity in the presence of an organic solvent and a copper-amine catalyst to form a reaction mixture including a poly(phenylene ether) having a final intrinsic viscosity that is at least 50% greater than the initial intrinsic viscosity. The method further includes terminating the oxidative polymerization to form a post-termination reaction mixture; combining an aqueous solution comprising a chelant with the post-termination reaction mixture to form a chelation mixture of an aqueous phase comprising chelated copper ion, and an organic phase comprising dissolved poly(phenylene ether); separating the aqueous phase and the organic phase; and isolating the poly(phenylene ether) from the organic phase. High molecular weight poly(phenylene ether)s prepared according to the method described herein are also disclosed. 1. A method for preparing a poly(phenylene ether) , the method comprising:oxidatively polymerizing a poly(phenylene ether) starting material having an initial intrinsic viscosity in the presence of an organic solvent and a copper-amine catalyst to form a reaction mixture comprising a poly(phenylene ether) having a final intrinsic viscosity that is at least 50% greater than the initial intrinsic viscosity, wherein the initial intrinsic viscosity and the final intrinsic viscosity are determined using an Ubbelohde viscometer at 25° C. in chloroform;terminating the oxidative polymerization to form a post-termination reaction mixture; an aqueous phase comprising chelated copper ion, and', 'an organic phase comprising dissolved poly(phenylene ether);, 'combining an aqueous solution comprising a chelant comprising an alkali metal salt of an aminopolycarboxylic acid with the post-termination reaction mixture to form a chelation mixture comprising'}separating the aqueous phase and the organic phase; andisolating the ...

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Номер записи: 46
24-07-2014 дата публикации

Iridium Containing Hydrosilylation Catalysts and Compositions Containing the Catalysts

Номер: US20140206869A1
Автор: Aswini DASH, Avril Surgenor, Binh Nguyen, Kurt Brandstadt, Matthew OLSEN, Ming-Shin Tzou, Richard Taylor, Simon Cook
Принадлежит: Dow Corning Corp

A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable, of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a metal-ligand complex that can be prepared by a method including reacting a metal precursor and a ligand.

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Номер записи: 47
23-04-2020 дата публикации

INTERMOLECULAR REACTION OF PROPARGYL ETHERS WITH DIMETHYLFURAN IN THE PRESENCE OF GOLD(I) COMPLEXES

Номер: US20200123087A1
Автор: ACKERMANN Stephan, LEHMANN Hajo, Letinois Ulla, MEDLOCK Jonathan Alan
Принадлежит:

The present invention relates to a method of preparing ortho substituted phenols from 2,5-dimethylfuran and propargyl ethers in the presence of a gold(I) complex. It is particularly advantageous to use 2,5-dimethylfuran as this offers an ecological beneficial synthesis of said ortho substituted phenols. 2. The process according to claim 1 , wherein Rrepresents a C-alkyl group.3. The process according to claim 1 , wherein the gold(I) complex has the formula:{'br': None, '[Au(I)OL]AN'}wherein OL represents an organic ligand and AN represents a single charged anion.6. The process according to a claim 1 , wherein the gold(I) complex is prepared from a gold(I) chloro complex and a silver(I) salt.7. The process according to wherein 1 the gold (I) complex is of formula:{'br': None, '[Au(I)OL]AN'}wherein OL represents an organic ligand and AN represents a single charged anion, andwherein the gold (I) complex is a reaction product of Au(I)OLCl and AgAN.8. The process according to claim 1 , wherein the gold (I) complex is of formula:{'br': None, '[Au(I)OL]AN'}wherein OL represents an organic ligand and AN represents a single charged anion, andwherein the gold (I) complex is a reaction product of Au(I)OLCl and NaAN.10. The process according to claim 9 , wherein step (ia) comprises separating the compound of formula (I) from the compound of formula (IVa) and/or (IVb) are by chromatography. This application is a divisional of commonly owned copending U.S. application Ser. No. 16/063,481, filed Jun. 18, 2018 (now abandoned), which is the U.S. national phase of International Application No. PCT/EP2016/079016, filed Nov. 28, 2016 which designated the U.S. and claims priority to EP Patent Application No. 15201770.3, filed Dec. 21, 2015, the entire contents of each of which are hereby incorporated by reference.The present invention relates to the field of ortho-substituted phenols and their derivatives.Phenolic compounds are in general very interesting for a variety of industrial ...

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Номер записи: 48
03-06-2021 дата публикации

METAL ORGANIC FRAMEWORKS (MOFs) AND METHODS OF SYNTHESIZING AND USING THE SAME

Номер: US20210162388A1
Автор: Phuong Thi Kieu Nguyen, Quang Thien Luong, Thang Bach Phan, Y Bach Nhu Tran
Принадлежит: Center For Innovative Materials And Architectures, VIETNAM NATIONAL UNIVERSITY HO CHI MINH CITY

A new metal organic framework (MOF) series and method of synthesizing the same are disclosed which includes an organic linking ligand having the formula:and a metal ion bonded to the organic linking ligand.

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Номер записи: 49
03-06-2021 дата публикации

COMPOUND OF 3,3,3',3'-TETRAMETHYL-1,1'-SPIROBIINDANE-BASED PHOSPHINE LIGAND, AND PREPARATION METHOD THEREOF

Номер: US20210163514A1
Автор: CHANG Shirui, Lin Xufeng, Wang Lei, YAO Linxi
Принадлежит:

The present application discloses a 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based phosphine ligand, an intermediate, a preparation method and uses thereof. The compound of phosphine ligand is a compound having a structure represented by formula I or formula II, or an enantiomer, a raceme, or diastereomer thereof. The phosphine ligand can be prepared via a preparation scheme in which the cheap and easily available 6,6′-dihydroxyl-3,3,3′,3′-tetramethyl-1,1′-spirobiindane is used as a raw material and the compound represented by formula III serves as the key intermediate. The new phosphine ligand developed by the present application can be used in catalytic organic reaction, in particular as a chiral phosphine ligand that is widely used in many asymmetric catalytic reactions including asymmetric hydrogenation and asymmetric allyl alkylation, and thus it has economic practicability and industrial application prospect. 4. The compound represented by formula I or formula II according to claim 1 , wherein Ris selected from the group consisting of phenyl claim 1 , benzyl claim 1 , pentafluorophenyl claim 1 , 4-methylphenyl claim 1 , 4-methoxyphenyl claim 1 , 4-trifluoromethyl-phenyl claim 1 , 3 claim 1 ,5-dimethylphenyl claim 1 , 3 claim 1 ,5-difluorophenyl claim 1 , 3 claim 1 ,5-dimethoxyphenyl claim 1 , 3 claim 1 ,5-di-tert-butylphenyl claim 1 , 3 claim 1 ,4 claim 1 ,5-trimethoxyphenyl claim 1 , 3 claim 1 ,5-dimethyl-4-methoxy-phenyl claim 1 , 3 claim 1 ,5-di-tert-butyl-4-methoxy-phenyl claim 1 , 3 claim 1 ,5-dimethyl-4-methoxy-phenyl claim 1 , and 3 claim 1 ,5-bis(trifluoromethyl)-phenyl.10. A use of the 3 claim 1 ,3 claim 1 ,3′ claim 1 ,3′-tetramethyl-1 claim 1 ,1′-spirobiindane-based phosphine ligand according to claim 1 , wherein the phosphine ligand is complexed with a metal salt of iron claim 1 , osmium claim 1 , gold claim 1 , silver claim 1 , copper claim 1 , platinum claim 1 , rhodium claim 1 , ruthenium claim 1 , iridium claim 1 , nickel claim 1 , molybdenum ...

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Номер записи: 50
18-05-2017 дата публикации

GREEN METHODS FOR PREPARING HIGHLY CO2 SELECTIVE AND H2S TOLERANT METAL ORGANIC FRAMEWORKS

Номер: US20170137450A1
Автор: BELMABKHOUT Youssef, Eddaoudi Mohamed, SHEKHAH Osama
Принадлежит:

A green route for preparing a metal organic framework include mixing metal precursor with a ligand precursor to form a solvent-free mixture; adding droplets of water to the mixture; heating the mixture at a first temperature after adding the water; and isolating the metal organic framework material including the metal and the ligand. 1. A method for preparing a metal organic framework comprising:mixing a metal precursor with a ligand precursor to form a mixture;adding water to the mixture;heating the mixture at a first temperature after the water is added to the mixture; andisolating a two-dimensional metal organic framework intermediate structure.2. The method of claim 1 , wherein the metal of the metal precursor is selected from a group consisting of Ni claim 1 , Cu claim 1 , Zn claim 1 , Fe claim 1 , and Co.3. The method of claim 1 , wherein the metal includes Ni.4. The method of claim 1 , wherein the metal precursor includes metal hexafluorosilicate.5. The method of claim 1 , wherein the ligand precursor includes pyrazine claim 1 , 4 claim 1 ,4′-Bipyridin claim 1 , 1 claim 1 ,4-Diazabicyclo[2.2.2]octane claim 1 , or 1 claim 1 ,2-bis(4-pyridyl)acetylene.6. The method of claim 1 , wherein the ligand precursor includes a nitrogen-containing heterocyclic ligand.7. The method of claim 1 , wherein the molar ratio of the ligand precursor to the metal precursor is about 3:1 to about 6:1.8. The method of claim 1 , further comprising forming SIFSIX-Ni-3 metal organic framework.9. The method of claim 1 , wherein the water to mixture ratio can be from about 1:1 to about 1:210. The method of claim 1 , wherein the two-dimensional metal organic framework intermediate structure is H2S tolerant.11. A method for preparing a metal organic framework comprising:mixing a metal precursor with a ligand precursor to form a mixture;adding water to the mixture;heating the mixture at a first temperature after the water is added to the mixture; heating the mixture to a second temperature; ...

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Номер записи: 51
30-04-2020 дата публикации

METHOD FOR PREPARING TWO-DIMENSIONAL SHEET-SHAPED CU-MOF MATERIAL

Номер: US20200129970A1
Автор: Li Hang, Lu Xiaohua, XU Xiangyue, Yang Zhuhong, Zhang Suoying
Принадлежит: NANJING TECH UNIVERSITY

A method for preparing a two-dimensional sheet-shaped Cu-MOF material, includes mixing Cu-BTC with an alkaline solution at a certain solid-liquid ratio by stirring, reacting at a temperature of 25 to 120° C., filtering, washing with ionized water and drying under vacuum, to obtain a two-dimensional sheet-shaped Cu-MOF material, wherein the alkaline solution is at least one of urea, sodium carbonate, sodium bicarbonate, aqueous ammonia, sodium hydroxide or potassium hydroxide. The method has the characteristics of mild operation conditions, controllable transition process, high reaction yield and easy production at large scale, and exhibits excellent oxidation performance in styrene oxidation. 1. A method for preparing a two-dimensional sheet-shaped Cu-MOF material , comprising mixing Cu-BTC with an alkaline solution at a certain solid-liquid ratio by stirring , reacting at a temperature of 25 to 120° C. , filtering , washing with ionized water and drying under vacuum , to obtain a two-dimensional sheet-shaped Cu-MOF material , wherein the alkaline solution is at least one of urea , sodium carbonate , sodium bicarbonate , aqueous ammonia , sodium hydroxide or potassium hydroxide.2. The method according to claim 1 , wherein the raw material Cu-BTC refers to a MOF material having a three-dimensional structure which has been industrialized in the prior art claim 1 , and has a CAS number of 51937-85-0.3. The method according to claim 1 , wherein the two-dimensional sheet-shaped Cu-MOF is a general term for a plurality of compounds having a two-dimensional sheet-shaped structure formed by the coordination assembly of Cu and trimesic acid.4. The method according to claim 1 , wherein the solid-liquid ratio of the Cu-BTC to the alkaline solution is less than 1/30 g/ml.5. The method according to claim 1 , wherein the solid-liquid ratio of the Cu-BTC to the alkaline solution is such that when the pH of the alkaline solution is 7 to 9 claim 1 , 1/150≤solid-liquid ratio ≤1/80 g/ ...

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Номер записи: 52
26-05-2016 дата публикации

Compound, Manufacturing Method Therefor, and Method for Manufacturing Optically Active alpha-Aminophosphonate Derivative

Номер: US20160145278A1
Автор: BAO Youmei, KUMAGAI Naoya, SHIBASAKI Masakatsu, Yin Liang
Принадлежит:

A method for producing a compound represented by General Formula (1), the method including: 5. The method according to claim 4 , wherein the reacting is performed using a catalyst containing an asymmetric ligand.6. The method according to claim 5 , wherein the catalyst containing an asymmetric ligand is a copper-optically active phosphine complex. The present invention relates to a method for efficiently synthesizing an optically active α-aminophosphonic acid derivative which is useful as a starting material of a candidate substance of a drug. Specifically, the present invention relates to a novel compound, a method for efficiently synthesizing the novel compound, a method for synthesizing the optically active α-aminophosphonic acid derivative using the novel compound, and a novel optically active α-aminophosphonic acid derivative.Optically active α-aminophosphonic acid derivatives are useful for the synthesis of candidate compounds of pharmaceutical drugs such as antibacterial agents, anti-HIV drugs, and enzyme inhibitors (see, for example, NPLs 1 to 5).Generally employed methods for producing optically active α-aminophosphonic acid derivatives are, for example, methods using chiral auxiliary groups for increasing stereoselectivity (see, for example, NPLs 6 to 9).These techniques, however, use expensive chiral auxiliary groups in a large amount (an equimolar amount or more) and the chiral auxiliary groups cannot be recovered after use, having a problem that they are not economical.Other proposed production methods include a method using, as a catalyst, Cinchona Alkaloid such as quinine, adding diphenyl phosphate to a specific ketimine to obtain an adduct, and synthesizing an optically active α-aminophosphonic acid derivative from the adduct (see, for example, NPL 10).This technique, however, has a problem that stereoselectivity is low unless at least one of two substituents binding to carbon of the C═N bond of the ketimine is an aromatic hydrocarbon group, which ...

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Номер записи: 53
24-05-2018 дата публикации

COMPOSITIONS COMPRISING IONIC LIQUIDS FOR DECOMPOSING PEROXIDES

Номер: US20180141811A1
Автор: GROCHE Florian J., KALLFASS Christoph, KUEHN Fritz
Принадлежит:

The invention relates to a composition for generating oxygen, comprising at least one oxygen source, and at least one ionic liquid comprising a cation and an anion, wherein the oxygen source is a peroxide compound, the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., and the anion is selected from metallate anions. 1. A composition for generating oxygen , comprisingat least one oxygen source, and the oxygen source is a peroxide compound,', 'the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., and', 'the anion is selected from metallate anions., 'at least one ionic liquid comprising a cation and an anion, wherein'}2. The composition according to claim 1 , wherein the oxygen source and the ionic liquid are not in physical contact with each other.3. The composition according to claim 1 , wherein the oxygen source is selected from alkali metal percarbonates claim 1 , alkali metal perborates claim 1 , urea hydrogen peroxide claim 1 , and mixtures thereof.4. The composition according to claim 1 , wherein the cation is selected from the group consisting of heterocyclic hydrocarbon cations claim 1 , ammonium and phosphonium cations.5. The composition according to claim 1 , wherein the cation has at least one substituent claim 1 , and wherein the cation may be symmetrically or asymmetrically disubstituted.6. The composition according to claim 1 , wherein the cation is selected from the group consisting of imidazolium claim 1 , pyrrolidinium claim 1 , ammonium claim 1 , choline claim 1 , pyridinium claim 1 , pyrazolium claim 1 , piperidinium claim 1 , phosphonium claim 1 , sulfonium cations.7. The composition according to claim 1 , wherein the metallate anion comprises at least one transition metal and at least one halide ion and/or pseudohalide ion.8. The composition according to claim 7 , wherein the transition metal is selected from iron and copper.9. The composition according to claim ...

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Номер записи: 54
24-05-2018 дата публикации

Methods Using Ionic Liquids for Decomposing Peroxides

Номер: US20180141813A1
Автор: GROCHE Florian J., KALLFASS Christoph, KUEHN Fritz
Принадлежит:

The present invention relates to a method for generating oxygen, comprising providing at least one oxygen source, providing at least one ionic liquid, the ionic liquid comprising a cation and an anion, wherein the oxygen source is a hydrogen peroxide adduct compound which is at least partially soluble in the ionic liquid, the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., and the anion is selected from metallate anions, and contacting the oxygen source and the ionic liquid. 1. A method for generating oxygen , comprisingproviding at least one oxygen source,providing at least one ionic liquid, the ionic liquid comprising a cation and an anion,wherein the oxygen source is a peroxide compound, the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., and the anion is selected from metallate anions, andcontacting the oxygen source and the ionic liquid.2. The method according to claim 1 , wherein the oxygen source is selected from alkali metal percarbonates claim 1 , alkali metal perborates claim 1 , urea hydrogen peroxide claim 1 , and mixtures thereof.3. The method according to claim 1 , wherein the oxygen source is one or more of Na2CO3×1.5 H2O2 claim 1 , NaBO3×4 H2O claim 1 , NaBO3×H2O claim 1 , and urea hydrogen peroxide.4. The method according to claim 1 , wherein the cation includes is selected from the group consisting of heterocyclic hydrocarbon cations claim 1 , ammonium claim 1 , and phosphonium cations.5. The method according to claim 1 , wherein the cation is symmetrically or asymmetrically disubstituted claim 1 , wherein the substituents may be independently selected from optionally substituted alkyl groups having 1 to 18 carbon atoms.6. The method according to claim 1 , wherein the metallate anion comprises at least one transition metal and at least one halide ion and/or pseudohalide ion.7. The method according to claim 6 , wherein the transition metal is selected from iron ...

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Номер записи: 55
04-06-2015 дата публикации

Copper Containing Complex, Condensation Reaction Compositions Containing the Complex, and Methods for the Preparation and Use of the Compositions

Номер: US20150152301A1
Автор: Brandstadt Kurt, Cook Simon, Diamond Gary, Hall Keith, Lower Loren, Surgenor Avril, Taylor Richard, Tonge James, Tzou Ming-Shin
Принадлежит: Dow Corning Corporation

A composition is capable of curing via condensation reaction. The composition uses a new condensation reaction catalyst. The new condensation reaction catalyst is used to replace conventional tin catalysts. The composition can react to form a gum, gel, rubber, or resin. 2. The composition of claim 1 , where the condensation reaction produces a reaction product having a visual viscosity value ranging from 2 to 5 when tested according to the method of Example 2.3. The composition of claim 1 , where the precursor has general formula Cu-A claim 1 , where subscript a is 1 or 2 claim 1 , andwhere each A is independently a monovalent organic group and subscript a has a value of 1 or 2.4. The composition of claim 3 , where one of the following conditions is met:where each A is independently selected from an aryl group and a carboxylic ester group; orwhere each A is independently mesityl or ethylhexanoate.5. (canceled)7. The composition of claim 1 , further comprising at least one additional ingredient distinct from ingredients (A) and (B) claim 1 , where the at least one additional ingredient is selected from the group consisting of: (C) the crosslinker; (D) the drying agent; (E) the extender claim 1 , the plasticizer claim 1 , or the combination thereof; (F) the filler; (G) the treating agent; (H) the biocide; (J) the flame retardant; (K) the surface modifier; (L) the chain lengthener; (M) the endblocker; (N) the nonreactive binder; (O) the anti-aging additive; (P) the water release agent; (Q) the pigment; (R) the rheological additive; (S) the vehicle; (T) the tackifying agent; (U) the corrosion inhibitor; and the combination thereof.8. A method comprising: exposing the composition of to moisture to prepare a reaction product.9. A reaction product prepared by the method of claim 8 , where one of the following conditions is satisfied:where the reaction product has a form selected from a gum, a gel, a rubber, and a resin;orwhere the reaction product has a form selected from ...

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Номер записи: 56
21-08-2014 дата публикации

Molybdenum Containing Hydrosilylation Reaction Catalysts and Compositions Containing the Catalysts

Номер: US20140231703A1
Автор: Avril Surgenor, Binh Nguyen, Kurt Brandstadt, Ming-Shin Tzou, Richard Taylor, Simon Cook
Принадлежит: Dow Corning Corp

A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition ′ capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a metal-ligand complex that can be prepared by a method including reacting a metal precursor and a ligand.

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Номер записи: 57
17-06-2021 дата публикации

SOLVENTS FOR ORGANOMETALLIC REAGENTS

Номер: US20210178375A1
Автор: Bergbreiter David E., Malinski Thomas J.
Принадлежит:

In an embodiment, the present disclosure pertains to a solvent including a hydrocarbon oligomer with at least 20 carbon atoms, where the hydrocarbon oligomer has at least one of a low viscosity, a low vapor pressure, and a high flashpoint. In another embodiment, the present disclosure pertains to a solution including a poly(α-olefin) and a reactive organometallic reagent. In a further embodiment, the present disclosure pertains to a solution including an oligomeric hydrocarbon and a reactive organometallic reagent. In an additional embodiment, the present disclosure pertains to a method for creating a solution, where the method includes adding a reactive organometallic reagent to an oligomeric hydrocarbon. 1. A solvent comprising:a hydrocarbon oligomer with at least 20 carbon atoms, wherein the hydrocarbon oligomer has at least one of a low viscosity, a low vapor pressure, and a high flashpoint.2. The solvent of claim 1 , wherein the solvent is selected from the group consisting of a poly(α-olefin) decene dimer claim 1 , a poly(α-olefin) decene trimer claim 1 , a poly(α-olefin) decene tetramer claim 1 , a poly(α-olefin) decene pentamer claim 1 , a poly(α-olefin) dodecene dimer claim 1 , a poly(α-olefin) dodecene trimer claim 1 , a poly(α-olefin) dodecene tetramer claim 1 , a poly(α-olefin)-anchored cosolvent claim 1 , or combinations thereof.3. The solvent of claim 1 , wherein the poly(α-olefin)-anchored cosolvent is a polyisobutylene-bound cosolvent.4. The solvent of claim 3 , wherein the polyisobutylene-bound cosolvent is a terminally functionalized polyisobutylene having end groups that stabilize or solubilize an organometallic reagent in poly(α-olefin).5. The solvent of claim 1 , wherein the hydrocarbon oligomer has low volatility.6. The solvent of claim 1 , wherein the hydrocarbon oligomer is a saturated hydrocarbon oligomer having 20 carbon atoms.7. The solvent of claim 1 , wherein the hydrocarbon oligomer is a saturated hydrocarbon oligomer having 30 carbon ...

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Номер записи: 58
07-05-2020 дата публикации

CATALYSTS

Номер: US20200140610A1
Автор: Adriaenssens Louis, Chapman Andy, Chartoire Anthony, Kember Michael, LEELAND James
Принадлежит:

Polymerisation catalysts and systems comprising said catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): 2. The catalyst of claim 1 , wherein Ris different from R claim 1 , and each occurrence of E claim 1 , E claim 1 , Eand Eis the same.3. The catalyst of claim 1 , wherein Ris the same as Rand at least one occurrence of E claim 1 , E claim 1 , Eand Eis different to a remaining occurrence of E claim 1 , E claim 1 , Eand Ee.4. The catalyst of claim 1 , wherein Ris different from Rand at least one occurrence of E claim 1 , E claim 1 , Eand Eis different to a remaining occurrence of E claim 1 , E claim 1 , Eand E.5. The catalyst of claim 1 , wherein Eand Eare the same claim 1 , and Eand Eare the same claim 1 , and wherein Eand Eare different from Eand E.6. The catalyst of claim 1 , wherein Eand Eare the same claim 1 , and Eand Eare the same claim 1 , and wherein Eand Eare different from Eand E.7. The catalyst of claim 1 , wherein Ror Ris selected from substituted or unsubstituted alkylene claim 1 , substituted or unsubstituted cycloalkylene or optionally substituted arylene.8. The catalyst of claim 1 , wherein Ris different from R claim 1 , Ris substituted or unsubstituted alkylene.9. The catalyst of claim 1 , wherein Ris different from Rand wherein Ris 2 claim 1 ,2-dimethylpropylene and Ris phenylene claim 1 , or Ris a disubstituted cycloalkylene which acts as a bridging group between two nitrogen centers in the catalyst of formula (I) and Ris 2 claim 1 ,2-dimethylpropylene claim 1 , or Ris 2 claim 1 ,2-dimethylpropylene and Ris propylene or ethylene claim 1 , or Ris propylene claim 1 , and Ris 2 claim 1 ,2-dimethylpropylene.10. The catalyst of claim 1 , wherein each E claim 1 , E claim 1 , Eand Eis NR claim 1 , and one of the Rgroups is different.11. The catalyst of claim 1 , wherein each ES claim 1 , E claim 1 , Eand Eis NR claim 1 , and two of the Rgroups are ...

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Номер записи: 59
01-06-2017 дата публикации

Electroless metallization of dielectrics with alkaline stable pyrazine derivative containing catalysts

Номер: US20170156216A9
Автор: Feng Liu, Maria Rzeznik
Принадлежит: Rohm and Haas Electronic Materials LLC

Pyrazine derivatives which contain one or more electron donating groups on the ring are used as catalytic metal complexing agents in aqueous alkaline environments to catalyze electroless metal plating on metal clad and un-clad substrates. The catalysts are monomers and free of tin and antioxidants.

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Номер записи: 60
22-09-2022 дата публикации

METAL CATALYST, METHOD OF C-N COUPLING USING THE SAME AND APPLICATIONS OF THE SAME

Номер: US20220297101A1
Автор: Brandt Andrew L., Ghosh Anindya, Parnell Charlette
Принадлежит:

A method for C—H bond activation and/or C—N coupling reaction comprises adding a hydrocarbon material to a container; adding a metal catalyst to the container; adding a primary or a secondary amine to the container. The metal catalyst is represented by the following formula: 2. The method according to claim 1 , wherein the amount of the metal catalyst is 0.02 to 2 mol %. This application is a divisional application of U.S. patent application Ser. No. 17/148,736, filed Jan. 14, 2021, now allowed, which is a divisional application of U.S. patent application Ser. No. 16/054,181, filed Aug. 3, 2018, abandoned, which claims priority to and the benefit of U.S. Provisional Patent Application Ser. No. 62/540,770, filed Aug. 3, 2017, which are incorporated herein in their entireties by reference.The present disclosure relates to a metal catalyst, a method of C—N coupling using a metal catalyst and applications of the same. In certain embodiments, a metal catalyst with varying substituents is used for direct coupling of primary and secondary amines with hydrocarbons containing activated and non-activated C—H bonds (spcarbon).The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventor, to the extent it is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.Nitrogen-based compounds have great value in various fields ranging from fine chemicals to pharmaceuticals. In particular, aromatic nitrogen-based compounds have even more great value, extending to even more fields such as agrochemicals, electronica materials, xerography, pigmentation, and photography. Because of their diverse uses, developing a cheap and easy to use methodology for C—N coupling has become an area of great importance.In the past several ...

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Номер записи: 61
14-05-2020 дата публикации

CATALYTICALLY ACTIVE SUBSTANCES

Номер: US20200147595A1
Автор: Kraft Lewis J.
Принадлежит:

A catalytically active substance includes a copper (I) sulfide mineral particle, and an alkyne functionalized molecule bound to a surface of the copper (I) sulfide mineral particle. In an example method, a copper (I) sulfide mineral is reacted with an alkyne functionalized molecule to form a catalytically active substance. The catalytically active substance is reacted with an azide functionalized molecule to couple the catalytically active substance with the azide functionalized molecule. 1. A catalytically active substance , comprising:a copper (I) sulfide mineral particle; andan alkyne functionalized molecule bound directly to a surface of the copper (I) sulfide mineral particle.2. The catalytically active substance as defined in claim 1 , wherein the copper (I) sulfide mineral particle is selected from the group consisting of chalcocite claim 1 , djurleite claim 1 , and digenite.3. The catalytically active substance as defined in claim 1 , wherein the alkyne functionalized molecule is a primer having an alkyne functional group attached at the 5′ terminus of the primer.4. The catalytically active substance as defined in claim 1 , wherein a coordinate bond binds the alkyne functionalized molecule to the surface of the copper (I) sulfide mineral particle.5. A method of making a triazole claim 1 , comprising reacting an alkyne functionalized molecule with an azide functionalized molecule in the presence of a copper (I) sulfide mineral.6. The method as defined in claim 5 , wherein:the copper (I) sulfide mineral reacts with the alkyne functionalized molecule to form a catalytically active substance; andthe catalytically active substance reacts with the azide functionalized molecule to couple the catalytically active substance with the azide functionalized molecule.7. The method as defined in claim 5 , wherein prior to reacting the copper (I) sulfide mineral with the alkyne functionalized molecule claim 5 , the method further comprises adding a stoichiometric excess of ...

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Номер записи: 62
08-06-2017 дата публикации

METHOD FOR PRODUCING SPIROOXINDOLE DERIVATIVE

Номер: US20170158703A9
Автор: NAKAYAMA Keiji, YAMAUCHI Motoshi
Принадлежит:

The present invention is intended to provide a method for efficiently producing and providing a compound having a spirooxindole skeleton, for example, a compound having a spirooxindole skeleton and having antitumor activity that inhibits the interaction between Mdm2 protein and p53 protein, or an intermediate thereof, using an asymmetric catalyst. A compound having an optically active tricyclic dispiroindole skeleton is efficiently obtained through a catalytic asymmetric 1,3-dipolar cycloaddition reaction using ketimine as a reaction substrate and using a chiral ligand and a Lewis acid. 4. A method according to any one of to , wherein the Lewis acid used in the preparation of the asymmetric catalyst is a Cu(I) Lewis acid or a Cu(II) Lewis acid.5. A method according to any one of to , wherein the Lewis acid used in the preparation of the asymmetric catalyst is a Lewis acid selected from the group consisting of CuOAc , CuCl , CuBr , CuI , CuOTf , CuPF , CuBF , Cu(OAc) , Cu(OTf) , and CuSO.8. A method according to any one of to , wherein the solvent used in the reaction is one or more solvents selected from the group consisting of N ,N-dimethylacetamide , tetrahydrofuran , dimethoxyethane , 2-propanol , toluene , and ethyl acetate.10. A method according to any one of to , wherein Ris a hydrogen atom.11. A method according to any one of to , wherein in formula (I) ,ring Z is a benzene ring optionally having 1 to 4 halogen atoms.12. A method according to any one of to , wherein in formula (II) or formula (V) ,{'sup': '2', 'Ris a pyridyl group optionally having 1 to 4 halogen atoms, or a phenyl group optionally having 1 to 5 halogen atoms.'}13. A method according to any one of to , wherein in formula (II) or formula (V) ,{'sup': 3', '4', '3', '4, 'claim-text': {'sub': 1', '6, 'the cyclopentane ring, the cyclohexane ring, and the tetrahydropyran ring each optionally have 1 to 4 C-Calkyl groups on the ring.'}, 'Rand Reach represent a methyl group, or Rand Rtogether form a ...

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Номер записи: 63
29-09-2022 дата публикации

HIGHLY DISPERSED METAL SUPPORTED OXIDE AS NH3-SCR CATALYST AND SYNTHESIS PROCESSES

Номер: US20220305480A1
Автор: CHARLIN Marc-Olivier, MERLE Nicolas, NGUYEN Phuc Hai, SZETO Kai Chung, Taoufik Mostafa
Принадлежит:

A process for preparing a catalyst material, includes: (a) providing a support material having surface hydroxyl (OH) groups, the support material is ceria (CeO), zirconia (ZrO) or a combination, and the support material contains between 0.3 and 2.0 mmol OH groups/g of the support material; (b) reacting the support material with at least one of: (b1) a compound containing at least one alkoxy or phenoxy group bound though its oxygen atom to a metal element from Group 5 (V, Nb, Ta) or Group 6 (Cr, Mo, W); (b2) a compound containing at least one hydrocarbon group bound though a carbon atom to a metal element from Group 5 or 6; (b3) a compound containing at least one hydrocarbon group bound though a carbon atom to a metal element which is copper (Cu); and (c) calcining the product obtained in step (b). 1. A process for preparing a catalyst material , comprising the steps of:{'sub': 2', '2, '(a) providing a support material having surface hydroxyl (OH) groups, wherein the support material is ceria (CeO), zirconia (ZrO) or a combination thereof, and wherein the support material contains at least 0.3 mmol and at most 2.0 mmol OH groups/g of the support material;'} (b1) a compound containing at least one alkoxy or phenoxy group bound though its oxygen atom to a metal element from Group 5 (V, Nb, Ta) or Group 6 (Cr, Mo, W);', '(b2) a compound containing at least one hydrocarbon group bound though a carbon atom to a metal element from Group 5 (V, Nb, Ta) or Group 6 (Cr, Mo, W);', '(b3) a compound containing at least one hydrocarbon group bound though a carbon atom to a metal element which is copper (Cu); and, '(b) reacting the support material having surface hydroxyl (OH) groups of step (a) with at least one of the following(c) calcining the product obtained in step (b) in order to provide a catalyst material in which a metal element from Group 5 or Group 6, or Cu, is present as an oxide on the support material.2. The process according to claim 1 , wherein the support material ...

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Номер записи: 64
30-05-2019 дата публикации

Process for the preparation of azidoperfluoroalkanes and N-polyfluoroalkyl azides

Номер: US20190161452A1
Автор: BEIER Petr, BLASTIK Zsofia E., MATOUSEK Vaclav, VOLTROVA Svatava
Принадлежит:

Process for the preparation of azidoperfluoroalkanes and azidopolyfluoroalkanes of general formula R—N, where Ris chosen from a group containing CF, CFH, CFXor RCFCF, where n is an integer in the range of 1 to 10, x is an integer in the range of 2 to 20, X is Cl, Br, or I, Ris Calkyl, ArO, ArS, imidazolyl, benzimidazolyl, or pyrazolyl and Ar is phenyl or substituted phenyl, by the reaction of electrophilic azidation reagent of general formula R—N, where Ris n-CFSO, ArSO, Br, I, with synthetic equivalent of polyfluoroalkylated carbanion of general formula [R]. 1: A method for preparation of azidoperfluoroalkanes and azidopolyfluoroalkanes of formula R—N ,{'sub': F', 'n', '2n+1', 'n', 'x', '2n+1−x', 'n', 'x', '2n+1−x', '2', '2, 'sup': '1', 'wherein Ris selected from the group consisting of CF, CFH, CFXor RCFCF, wherein n is an integer in the interval from 1 to 10, x is an integer in the interval from 2 to 20 and'}X is Cl, Br, or I,{'sup': '1', 'sub': '1-10', 'Ris selected from the group consisting of Calkyl, ArO, ArS, imidazolyl, benzimidazolyl, or pyrazolyl and Ar is phenyl or substituted phenyl,'}said process having the following steps{'sub': 'F', 'sup': '−', '(A) generation of a synthetic equivalent of polyfluoroalkyl carbanion, said synthetic equivalent having the formula [R], by a method selected from{'sup': 3', '3, 'sub': 3', 'F', '1-5, 'a) activation of trialkyl(polyfluoroalkyl)silane of general formula RSiR, wherein Ris Calkyl, with a Lewis base which is selected from the group consisting of potassium fluoride, cesium fluoride, tetramethylammonium fluoride, tetrabutylammonium fluoride, sodium carbonate, potassium carbonate, potassium phosphate, sodium acetate, potassium acetate, tetrabutylammonium acetate;'}{'sub': F', '1-5, 'sup': 3', '3, 'b) reaction of polyfluoroalkane of general formula RH with a base which is selected from a group consisting of methyllithium, butyllithium, phenyllithium, Grignard reagent of general formula RMgX, wherein Ris Calkyl, and ...

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Номер записи: 65
01-07-2021 дата публикации

Method of preparing metal complexes of formula Z-M, in particular carbene-metal complexes

Номер: US20210198286A1
Автор: Cazin Catherine Suzanne Julienne
Принадлежит: Universiteit Gent

The present invention relates to an improved method of preparing metal complexes, in particular carbene-metal complexes. The method comprises the step of subjecting a salt of formula Z—X and a non-ionic metal salt of formula MLor subjecting a metallate of formula Z . . . MLX to a mechanical mixing process in the presence of a base. The method allows to formation of heterocyclic carbene metal complexes such as a nitrogen-containing heterocyclic carbene (NHC)-metal complexes. The invention also relates to the use of metal complexes, in particular carbene-metal complexes such as heterocyclic carbene-metal complexes obtainable by the method according to the present invention as catalysts. 1. A method of preparing a metal complex of formula Z-M , the method comprising the steps of{'sup': +', '−, 'sub': 'n', 'i1) providing a salt of formula Z—X and a non-ionic metal salt of formula ML; or'}{'sup': +', '−, 'sub': 'n', 'claim-text': with', 'Z comprising a two-electron donor ligand;', 'X comprising an anion;', 'M comprising a metal;', 'L comprising an anion or an electron donor ligand;', 'and, 'i2) providing a metallate of formula Z. . . MLX,'}{'sup': +', '−', '+', '−, 'sub': 'n', 'ii) subjecting the salt of formula Z—X and the metal salt of formula ML of step i1) or the metallate of formula Z. . . MLX, of step i2) to a mechanical mixing process in the presence of a base to form said metal complex of formula Z-M.'}2. The method according to claim 1 , wherein said method does not require the use of a solvent.3. The method according to claim 1 , wherein said salt of formula Z—X of step i1) has a single two-electron donor ligand Z or wherein said metallate of formula Z. . . MLX of step i2) has a single two-electron donor ligand Z.4. The method according to claim 1 , wherein said non-ionic metal salt of formula ML comprises a single metal M.5. The method according to claim 1 , wherein said metal complex of formula Z-M has a single two-electron donor ligand Z.6. The method ...

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Номер записи: 66
22-06-2017 дата публикации

A porous metal-organic framework with pyrimidine groups for methane storage exhibiting high working capacity

Номер: US20170173559A1
Автор: Banglin Chen, BIN Li, Hui-Min WEN
Принадлежит: University of Texas System

Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu 2 L(H 2 O) 2 ]-5DMF-3H 2 O, wherein L is a ligand of the formula: These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH 4 and CO 2 , sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.

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Номер записи: 67
28-05-2020 дата публикации

YLIDE-FUNCTIONALISED PHOSPHANES FOR USE IN METAL COMPLEXES AND HOMOGENEOUS CATALYSIS

Номер: US20200164354A1
Автор: DÄSCHLEIN-GESSNER Viktoria, SCHERPF Thorsten
Принадлежит:

The invention relates to ylide-functionalized phosphane ligands, the production of same and use in transition metal compounds, as well as the use of same as catalysts in organic reactions. 1. (canceled)2. The method of claim 8 , wherein in the phosphane ligands{'sub': 1-10', '1-6', '4-10', '6-14', '2-10', '6-14, '(i) the alkyl groups are selected from linear, branched-chain or cyclic Calkyl groups, preferably from Calkyl groups or C-cycloalkyl groups, the aryl groups are selected from Caryl groups, the alkenyl groups are selected from mono- or polyunsaturated linear, branched-chain or cyclic Calkenyl groups, and the heteroaryl groups are selected from Cheteroaryl groups; and/or'}{'sup': 11', '12', '3', '11', '11', '11', '11', '11, 'sub': 1-6', '6-10', '2', '2', '1-6, '(ii) the functional groups are selected from alkyl (—R), especially Calkyl groups, Caryl (—R), halogen (—Hal), hydroxy (—OH), cyano (—CN), alkoxy (—OR), amino (—NR, —NHR, —NH), mercapto (—SH, —SR), wherein R, independently of further Rresidues, is selected from Calkyl residues.'}4. The method of claim 8 , wherein in the phosphane ligands R claim 8 , Rand Rare independently selected from the group consisting of methyl claim 8 , ethyl claim 8 , butyl claim 8 , cyclohexyl claim 8 , phenyl claim 8 , and combinations thereof.5. The method of claim 8 , wherein in the phosphane ligands claim 8 , R claim 8 , Rand Rare the same and are selected from the group consisting of methyl claim 8 , ethyl claim 8 , butyl claim 8 , cyclohexyl claim 8 , phenyl claim 8 , and combinations thereof claim 8 , especially cyclohexyl and phenyl.6. The method of claim 8 , wherein in the phosphane ligands claim 8 , X is selected from the group consisting of methyl claim 8 , ethyl claim 8 , cyclohexyl claim 8 , phenyl claim 8 , p-tolyl claim 8 , trimethylsilyl claim 8 , p-tolylsulfonyl claim 8 , or combinations thereof.7. The method of claim 8 , wherein in the phosphane ligands claim 8 , Rand Rare independently selected from the ...

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Номер записи: 68
28-05-2020 дата публикации

Novel isocyanide compound and hydrosilylation reaction catalyst

Номер: US20200165274A1
Автор: Daisuke Noda, Hideo Nagashima, Koji Sakuta, Yusuke Sunada
Принадлежит: Kyushu University NUC, Shin Etsu Chemical Co Ltd

A hydrosilylation reaction catalyst prepared from a catalyst precursor comprising a transition metal compound of groups 8, 9, or 10 of the periodic table, excluding platinum, such as an iron carboxylate, cobalt carboxylate, or nickel carboxylate, and a ligand comprising an isocyanide compound having an organosiloxane group.

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Номер записи: 69
08-07-2021 дата публикации

Ylide-functionalised phosphanes for use in metal complexes and homogeneous catalysis

Номер: US20210205800A1
Автор: Thorsten SCHERPF, Viktoria DÄSCHLEIN-GESSNER
Принадлежит: Umicore AG and Co KG

The invention relates to ylide-functionalized phosphane ligands, the production of same and use in transition metal compounds, as well as the use of same as catalysts in organic reactions.

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Номер записи: 70
29-06-2017 дата публикации

METAL-ORGANIC FRAMEWORKS CONTAINING NITROGEN-DONOR LIGANDS FOR EFFICIENT CATALYTIC ORGANIC TRANSFORMATIONS

Номер: US20170182486A1
Автор: Lin, Manna Kuntal, Ph.D. Wenbin, Zhang Teng
Принадлежит:

Metal-organic framework (MOFs) compositions based on nitrogen donor-based organic bridging ligands, including ligands based on 1,3-diketimine (NacNac), bipyridines and salicylaldimine, were synthesized and then post-synthetically metalated with metal precursors, such as complexes of first row transition metals. Metal complexes of the organic bridging ligands could also be directly incorporated into the MOFs. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor. 1. A method for preparing a crystalline and porous metal-organic framework (MOF) , wherein said crystalline and porous MOF comprises periodic repeats of a metal-based secondary building unit (SBU) and a nitrogen donor-based bridging ligand , said method comprising:providing a nitrogen donor-based bridging ligand; andcontacting the nitrogen donor-based bridging ligand with a first metal source to obtain the crystalline and porous MOF.2. The method of claim 1 , wherein the nitrogen donor-based bridging ligand is a derivative of one of the nitrogen donor moieties selected from the group comprising bipyridines claim 1 , phenanthrolines claim 1 , terpyridines claim 1 , salicylaldimines claim 1 , pyridylphenols claim 1 , 1 claim 1 ,3-diketimine (NacNac) claim 1 , and bis(oxazolines).3. The method of claim 1 , wherein the nitrogen donor-based bridging ligand is a derivative of a nitrogen donor moiety claim 1 , wherein the nitrogen donor moiety is substituted by one or more substituents selected from a carboxylate claim 1 , pyridine claim 1 , and/or phosphonate moiety.4. The method of claim 3 , wherein the nitrogen donor-based bridging ligand is a dicarboxylate claim 3 , a tricarboxylate claim 3 , a tetracarboxylate claim 3 , a bipyridine claim 3 , a tripyridine claim 3 , a tetrapyridine claim 3 , a diphosphonate claim 3 , ...

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Номер записи: 71
09-07-2015 дата публикации

Novel phosphorus 2-pyrone derivative and preparation method thereof

Номер: US20150191497A1
Автор: Jun tae Mo, Phil Ho Lee, Taekyu Ryu
Принадлежит: Industry Academic Cooperation Foundation of KNU

Provided are a novel phosphorus 2-pyrone derivative and a preparation method thereof. The phosphorus 2-pyrone derivative according to the present invention is capable of being efficiently synthesized by treating an alkyl hydrogen alkynylphosphonate derivative and an alkyne derivative with a minimal amount of a gold catalyst.

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Номер записи: 72
04-06-2020 дата публикации

Method for producing a spirooxindole derivative

Номер: US20200172548A9
Автор: Keiji Nakayama, Motoshi Yamauchi
Принадлежит: Daiichi Sankyo Co Ltd

The present disclosure provides a method for efficiently producing and providing compounds having a spirooxindole skeleton, for example compounds having a spirooxindole skeleton and having antitumor activity that inhibit the interaction between Mdm2 protein and p53 protein, or intermediates thereof, using an asymmetric catalyst. Compounds having optically active tricyclic dispiroindole skeletons are obtained through catalytic asymmetric 1,3-dipolar cycloaddition reaction using ketimine as a reaction substrate and using a chiral ligand and a Lewis acid.

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Номер записи: 73
07-07-2016 дата публикации

METHOD FOR PRODUCING SPIROOXINDOLE DERIVATIVE

Номер: US20160194331A1
Автор: NAKAYAMA Keiji, YAMAUCHI Motoshi
Принадлежит:

The present invention is intended to provide a method for efficiently producing and providing a compound having a spirooxindole skeleton, for example, a compound having a spirooxindole skeleton and having antitumor activity that inhibits the interaction between Mdm2 protein and p53 protein, or an intermediate thereof, using an asymmetric catalyst. A compound having an optically active tricyclic dispiroindole skeleton is efficiently obtained through a catalytic asymmetric 1,3-dipolar cycloaddition reaction using ketimine as a reaction substrate and using a chiral ligand and a Lewis acid. 4. A method according to any one of to , wherein the Lewis acid used in the preparation of the asymmetric catalyst is a Cu(I) Lewis acid or a Cu(II) Lewis acid.5. A method according to any one of to , wherein the Lewis acid used in the preparation of the asymmetric catalyst is a Lewis acid selected from the group consisting of CuOAc , CuCl , CuBr , CuI , CuOTf , CuPF , CuBF , Cu(OAc) , Cu(OTf) , and CuSO.8. A method according to any one of to , wherein the solvent used in the reaction is one or more solvents selected from the group consisting of N ,N-dimethylacetamide , tetrahydrofuran , dimethoxyethane , 2-propanol , toluene , and ethyl acetate.10. A method according to any one of to , wherein Ris a hydrogen atom.11. A method according to any one of to , wherein in formula (I) ,ring Z is a benzene ring optionally having 1 to 4 halogen atoms.12. A method according to any one of to , wherein in formula (II) or formula (V) ,{'sup': '2', 'Ris a pyridyl group optionally having 1 to 4 halogen atoms, or a phenyl group optionally having 1 to 5 halogen atoms.'}13. A method according to any one of to , wherein in formula (II) or formula (V) ,{'sup': 3', '4', '3', '4, 'claim-text': {'sub': 1', '6, 'the cyclopentane ring, the cyclohexane ring, and the tetrahydropyran ring each optionally have 1 to 4 C-Calkyl groups on the ring.'}, 'Rand Reach represent a methyl group, or Rand Rtogether form a ...

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Номер записи: 74
27-06-2019 дата публикации

PROCESS FOR PREPARATION OF HYDROFLUOROALKENES BY SELECTIVE CATALYTIC CONSECUTIVE HYDRODEFLUORINATION

Номер: US20190194096A1
Автор: ANDRELLA Nicholas Orlando, BAKER Ralph Thomas
Принадлежит: UNIVERSITY OF OTTAWA

The present application provides a hydrodefluorination process for the preparation of hydrofluoroalkenes by catalyzed substitution of one or more F atoms of a C2-C30 fluoroalkene, or a C2-C10 fluoroalkene, with one or more H atoms using a hydride source, such as a silane, and copper catalyst. During this process at least one C—F bond in the fluoroakene is converted to a C—H bond. The process is useful in the manufacture of hydrofluoroalkenes, such as hydrofluoroalkenes employed as, for example, refrigerants and blowers. Also provided are precatalyst compositions for performing the process, and formulations manufactured from hydrofluoroalkenes produced using the process. 1. A process for hydrodehalogenation of a fluoroalkene comprising treating a fluoroalkene with a hydride source and a catalyst of Formula VIII{'br': None, 'sub': x', 'y', 'z, 'LMH\u2003\u2003 VIII'}{'sub': 3', '3', '2', '2', '2, 'where each L is, independently, a monodentate, bidentate, tridentate, or tetradentate phosphorous, nitrogen, oxygen, sulfur or carbon-based ligand or combination thereof, of the general formula PR, NR, SR, OR, :CRwhere each R is independently; H, alkyl, aryl, silyl, alkoxy, amino, or halogen;'}M is a metal; andx is an integer from 1 to 4;y is 1;z is an integer from 1 to 4; andthe sum of z+x is less than or equal to 4.5. The process according to claim 1 , wherein the each L is independently P(OEt) claim 1 , PPh claim 1 , PCp claim 1 , Bipy claim 1 , Phen claim 1 , tmeda claim 1 , Triphos claim 1 , Diphos claim 1 , bis(diphenylphosphino)benzene claim 1 , IPr (1 claim 1 ,3-Bis(2 claim 1 ,6-diisopropylphenyl)-imidazol-2-ylidene) claim 1 , or SIMes (1 claim 1 ,3-Bis(2 claim 1 ,4 claim 1 ,6-trimethylphenyl)-2-imidazolidinylidene).6. The process according to claim 1 , wherein M is a Group 11 metal claim 1 , for example claim 1 , CuI or CuII.7. The process according to claim 1 , wherein the catalyst is (PPh)CuH or (PPh)CuH.8. The process according to claim 1 , wherein the hydride ...

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Номер записи: 75
26-07-2018 дата публикации

A device, process, and catalyst intended for desulfurization and demercaptanization of gaseous hydrocarbonsd

Номер: US20180207579A1
Автор: Alexander Ivanovich TYURIN, Alexey Aleksandrovich TYURIN, Irina Gennadievna TARKHANOVA, Liudmila Aleksandrovna TYURINA
Принадлежит: Alexander Ivanovich TYURIN, Alexey Aleksandrovich TYURIN, Irina Gennadievna TARKHANOVA, Liudmila Aleksandrovna TYURINA

This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of —SH down up to 0.001 ppm.

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Номер записи: 76
26-07-2018 дата публикации

OXALIC ACID MONOAMIDE LIGAND, AND USES THEREOF IN COUPLING REACTION OF COPPER-CATALYZED ARYL HALOGEN SUBSTITUTE

Номер: US20180207628A1
Автор: FAN Mengyang, Ma Dawei, WU Haibo, XIA Shanghua, Yin Junli, Zhou Wei
Принадлежит: Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences

The present invention provides oxalic amide ligands and uses thereof in copper-catalyzed coupling reaction of aryl halides. Specifically, the present invention provides a use of a compound represented by formula I, wherein definitions of each group are described in the specification. The compound represented by formula I can be used as a ligand in copper-catalyzed coupling reaction of aryl halides for the formation of C—N, C—O and C—S bonds. 3. The use of claim 1 , characterized in that R is selected from the group consisting of substituted or unsubstituted phenyl claim 1 , substituted or unsubstituted naphthyl claim 1 , substituted or unsubstituted benzyl claim 1 , C1-C4alkyl claim 1 , pyridyl claim 1 , and adamantyl;{'sub': 'a', 'Ris selected from (a) or (b)(a) OR′; wherein R′ is selected from the group consisting of substituted or unsubstituted C1-C6 alkyl; or{'sub': '2', '(b) N(R″); wherein each R″ is independently selected from the group consisting of H, substituted or unsubstituted C6-C20 aryl, substituted or unsubstituted 3- to 20-membered heteroaryl, substituted or unsubstituted C7-C25 alkyl-aryl, substituted or unsubstituted C1-C5 alkyl-3- to 20-membered heteroaryl, substituted or unsubstituted C3-C20 cycloalkyl, and substituted or unsubstituted 3- to 20-membered heterocyclic group; wherein the heteroaryl or heterocyclic group has 1 to 5 heteroatoms selected from the group consisting of N, O and S; the cycloalkyl or heterocyclic group may be a monocyclic, polycyclic, spiro or bridged ring structure.'}5. The method of wherein claim 4 , in the reaction claim 4 , the molar ratio of the ligand to the reactant of aryl halide is 1-50:100 claim 4 , and preferably 5-20:100; and/orthe molar ratio of the ligand to the copper catalyst is 1-5: 1, and preferably 1-2:1.7. The method of wherein the reaction temperature is 50-180° C. claim 4 , and preferably 100-130° C. The present invention relates to the field of organic synthesis. Specifically, the present invention ...

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Номер записи: 77
04-07-2019 дата публикации

PRODUCTION OF METAL-ORGANIC FRAMEWORKS

Номер: US20190201866A1
Автор: BARTON Timothy Raymond, Batten Michael, HADLEY Trevor Dean, HILL Matthew Roland, Lim Kok Seng, MONCH Andreas Alexander, POLYZOS Anastasios, RUBIO MARTINEZ Marta
Принадлежит: Commonwealth Scientific and Industrial Research Organisation

An apparatus for producing metal organic frameworks, comprising: a tubular flow reactor comprising a tubular body into which, in use, precursor compounds which form the metal organic framework are fed and flow, said tubular body including at least one annular loop. 1. A process for producing metal organic frameworks , the process comprising:mixing at least two different precursor solutions for forming the metal organic framework (MOF) through inline mixing to form a solution mixture, the precursor solutions comprising a first precursor solution comprising at least one multidentate linking ligand in solvent; and a second precursor solution comprising a metal cluster or metallic salt thereof in solvent,introducing the solution mixture into an apparatus which comprises: a tubular flow reactor which comprises a tubular body having an inlet into which, in use, the solution mixture is fed and flows, said tubular body including at least one annular loop comprising a coil; and a flow restriction device comprising a back-pressure controller downstream of the tubular reactor for controlling the pressure within the tubular reactor, andpromoting a reaction within the tubular flow reactor to form the metal organic framework,wherein the precursor solutions are mixed through inline mixing in a feed conduit fluidly connected to the inlet of the tubular body and the resulting solution mixture being fed into said inlet at room temperature, the two or more precursor solutions being mixed at or proximate said inlet,and wherein the solution mixture flows through said tubular body mixing the precursor compounds therein to produce the metal organic frameworks.2. The process according to claim 1 , wherein the apparatus further comprises an inline mixer located at or proximate the inlet to the tubular body claim 1 , the inline mixer mixing the precursor solutions through inline mixing in said feed conduit fluidly connected to the inlet of the tubular body.3. The process according to claim 1 ...

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Номер записи: 78
04-07-2019 дата публикации

AEROBIC DEPOLYMERIZATION OF FIBER-REINFORCED COMPOSITES

Номер: US20190203013A1
Автор: MA YIJIA, NAVARRO CARLOS, NUTT STEVEN, Williams Travis J.
Принадлежит:

A method of aerobic depolymerization of fiber-reinforced polymer (FRP) composites using sustainable reagents and conditions. A cured matrix is digested into soluble monomers and oligomers by catalytic aerobic oxidation. Carbon fibers are removed for re-use, then the remaining material is treated and valuable monomers are isolated. The isolated monomers can be converted back into resin precursors for re-use. The method solves the problem created because the typically irreversible cure reaction impedes recycling and re-use of FRP composites. 1. A method of aerobic depolymerization of fiber-reinforced polymer (FRP) composites , the method comprising:providing an FRP matrix for recycling;degrading FRP matrix with a matrix digest solution that includes one or more catalysts and an oxygen source as a terminal oxidant to recover fibers at a first predetermined temperature; andremoving the fibers from the matrix digest solution after the FRP matrix has been solubilized.2. The method of wherein the fibers are carbon fibers.3. The method of wherein the FRP matrix is pretreated with a pretreatment solvent to permeabilize the FRP matrix.4. The method of further comprising continuing to treat matrix digest solutions with oxidative conditions at a lower temperature and at tunable Oand catalyst concentrations to provide a controlled release of useful monomers.5. The method of claim 1 , wherein the FRP matrix is an amine-linked epoxy matrix.6. The method of claim 1 , wherein the one or more catalysts include a transition metal-containing catalyst.8. The method of claim 1 , wherein the one or more catalysts include MeReOand oxides and halides of Mn(II) claim 1 , Cu(I) claim 1 , Re(VII) claim 1 , Re(V) claim 1 , and Re(III).9. The method of claim 1 , wherein the FRP matrix is degraded using ScClas a catalyst.10. The method of claim 1 , wherein the FRP matrix is degraded using AlClas a catalyst.11. The method of claim 1 , wherein the one or more catalysts include MnCl.12. The method ...

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Номер записи: 79
05-08-2021 дата публикации

CHIRAL N-SUBSTITUTED ALLYLIC AMINE COMPOUNDS

Номер: US20210238200A1
Автор: MURRU Siva, SRIVASTAVA Radhey S.
Принадлежит:

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafine, Naftifine 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral β-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of β-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent-1-en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. A novel chiral copper-BINAM nitrosoarene complex is also set forth. 1. The isolated chemical compound synthesized from the process of combining copper (II) salt [Cu(X)2] , and chiral nitrogen donor ligand in the presence of toluene.2. The isolated chemical compound of wherein the process comprises the steps of reacting Cu(X)2 claim 2 , Chiral nitrogen donor ligand claim 2 , followed by recrystallization to produce the desired chemical compound.3. The isolated chemical compound of wherein the recrystallization process comprises the steps of removal of solvent and re-dissolving the product in a particular solvent system to obtain crystals. This application is a divisional (“DIV”) of U.S. Nonprovisional Patent Application No. 16/211,806 filed on Dec. 6, 2018, which is a divisional (“DIV”) of U.S. Non-Provisional patent application Ser. No. 15/469,654 filed on Mar. 27, 2017, which itself is a CIP claiming ...

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Номер записи: 80
13-08-2015 дата публикации

USE OF HEAVY DARK OIL COMPONENTS AS CATALYST IN OXIDATIVE PURIFICATION OF HYDROCARBON COMPOSITIONS FROM HYDROGEN SULPHIDE AND LIGHT MERCAPTANS, CATALYST BASED OF HEAVY DARK OIL COMPONENTS FROM HYDROGEN SULPHIDE AND LIGHT MERCAPTANS

Номер: US20150224489A1
Автор: Bishir Anatoly, Chernishov Sergei, Konovalov Alexei, Lesnik Ivan, Tarkhanova Irina
Принадлежит:

Use of heavy dark components of oil, whose residue after distillation of fractions boiling out under 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal, as a catalyst during oxidative purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans. The catalyst is selected from heavy dark components of oil. A method of purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans by its oxidation with air oxygen or oxygen-containing gas at temperatures from 55 deg.C. to 135 deg.C. in presence, as a catalyst, of heavy dark components of oil, whose residue after distillation of fractions boiling out up to 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal. 1. A method of purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans , comprising the step of using heavy dark components of oil with a boiling temperature above 350 deg. C. as a catalyst.2. A method according to claim 1 , wherein the heavy dark components of oil contain compositions of copper not less than 0.005 mass % counted on pure metal.3. A method according to claim 1 , wherein the heavy dark components of oil contain compositions of vanadium not less than 0.005 mass % counted on pure metal.4. A method according to claim 4 , wherein the heavy dark components of oil contain composition of copper and vanadium with total quantity not less than 0.005 mass % counted on pure metal.5. A catalyst for purification of hydrocarbon composition from hydrogen sulphide and light mercaptans claim 4 , containing complexes of transitional metals with nitrogen-containing heterocycles claim 4 , characterized in that the catalyst is selected from residual dark products of processing of oil claim 4 , in particular a residue after distillation of a fraction which boils out below 350 deg. C.6. A catalyst according to claim 5 , characterized in that it contains compositions ...

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Номер записи: 81
13-08-2015 дата публикации

Hydrosilylation Catalysts Made With Terdentate Nitrogen Ligands And Compositions Containing The Catalysts

Номер: US20150224490A1
Автор: Brandstadt Kurt, Cook Simon, Nguyen Binh, Surgenor Avril, Taylor Richard, Tzou Ming-Shin
Принадлежит:

A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a metal-ligand complex that can be prepared by a method including reacting a metal precursor and a ligand. 115-. (canceled)17. The method of claim 16 , further comprising (2) combining the reaction product with an activator.1827-. (canceled)29. The composition of claim 28 , where the ruthenium metal compound is bis(2-methylallyl)(1 claim 28 ,5-cyclooctadiene) ruthenium(II).30. The composition of claim 28 , where each alkyl for A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , A claim 28 , and Ais independently selected from methyl claim 28 , ethyl claim 28 , propyl claim 28 , and butyl; each monovalent hydrocarbon group for Aand Ais independently selected from alkyl claim 28 , alkenyl claim 28 , carbocyclic claim 28 , aryl claim 28 , and aralkyl; and each monovalent heteroatom containing group for Aand Ais independently selected from halogenated hydrocarbon group or a hydrocarbonoxy group.33. The composition of claim 28 , where ingredient (C) is a silane of formula RSiH claim 28 , where subscript e is 0 claim 28 , 1 claim 28 , 2 claim 28 , or 3; subscript f is 1 claim 28 , 2 claim 28 , 3 claim 28 , or 4 claim 28 , with the proviso that a sum of (e+f) is 4 claim 28 , and each Ris independently a halogen atom or a monovalent organic group.34. The composition of claim 28 , where the composition further comprises one or more additional ingredients claim 28 , which are distinct from ingredients (A) claim 28 , (B) claim 28 , and (C) claim 28 , and which ...

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Номер записи: 82
04-08-2016 дата публикации

Process for the racemization of alpha-amino acids

Номер: US20160221929A1
Автор: Hye Rim GA, Il Suk Byun, Kyu Sung Han
Принадлежит: Aminologics Co Ltd

According to the present invention, a method is provided wherein a basic aqueous phase containing an optically active α-amino acid is brought into contact with an organic phase containing a racemisation catalyst in the form of a copper metal complex of copper ions and an α-amino acid and salicylaldehyde, in the presence of a phase transition catalyst, thereby subjecting the optically active α-amino acid to racemisation. In the α-amino acid racemisation method according to the present invention, the reaction conditions are mild and thus there is little α-amino acid breakdown and the yield is high, the racemisation catalyst can be reused, the α-amino acid resulting from the racemisation can easily be isolated and purified, and the racemisation method can be implemented in volume such that the invention is economic.

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Номер записи: 83
13-08-2015 дата публикации

METAL COMPLEX AND METHOD FOR PRODUCING HYDROGEN PEROXIDE

Номер: US20150225236A1
Автор: Kato Kenji, Nagata Masaki, Ogo Seiji
Принадлежит:

An object of the present invention is to provide a novel method for producing hydrogen peroxide by direct synthesis that is capable of taking the place of the conventional anthraquinone process, and to provide a catalyst used in the production method. 2: The metal complex according to claim 1 , wherein the number of carbon atoms of the alkyl group is 1 to 4 claim 1 , the number of carbon atoms of the aralkyl group is 7 to 10 claim 1 , the number of carbon atoms of the aryl group is 6 to 9 claim 1 , the number of carbon atoms of the alkoxy group is 1 to 4 claim 1 , the number of carbon atoms of the aralkyloxy group is 7 to 10 claim 1 , and the number of carbon atoms of the aryloxy group is 6 to 9.3: The metal complex according to claim 1 , represented by the formula (1) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , one of X claim 1 , Y and Z represents OH claim 1 , the remaining two represent HO claim 1 , and An1 represents a nitrate ion.4: The metal complex according to claim 1 , represented by the formula (2) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , Y represents HO and An2 represents a nitrate ion.5: The metal complex according to claim 1 , represented by the formula (3) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , Y represents HO and An3 represents a nitrate ion.6: The metal complex according to claim 1 , represented by the formula (4) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , X and Y represent HO and An4 represents a nitrate ion.8: The metal complex according to claim 1 , represented by the formula (1).9: The ...

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Номер записи: 84
03-08-2017 дата публикации

Process of production of 1-(5,5-dimethylcyclohex-1-en-1-yl)ethanone and 1-(5,5-dimethylcyclohex-6-en-1-yl )ethanone

Номер: US20170217864A1
Автор: Raphael Beumer, Ulla Letinois, Werner Bonrath
Принадлежит: DSM IP ASSETS BV

The present invention relates to an improved method for producing of 1-(5,5-dimethylcyclohex-1-en-1-yl)ethanone and 1-(5,5-dimethylcyclohex-6-en-1-yl)ethanone.

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Номер записи: 85
26-08-2021 дата публикации

Method for producing a lithium-containing metal oxide that can be used as an active material for a positive electrode

Номер: US20210261434A1
Автор: David Peralta
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A method for producing a lithium-containing oxide comprising one or more metal elements, which can be used as an active material for an electrode, for example a positive electrode for a lithium battery, the method comprising the following successive steps: a) a step of bringing at least one coordination polymer into contact with a lithium source, the coordination polymer comprising the other metal element(s) interconnected by organic ligands; b) a step of calcining the mixture resulting from step a).

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Номер записи: 86
01-08-2019 дата публикации

Pincer-type ligand having acridane structure and metal complex using the same

Номер: US20190232268A1
Автор: Changho YOO, Jonghoon Choi, Yunho Lee
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Disclosed are a pincer-type ligand having a structurally rigid acridane structure and a metal complex consisting of the pincer-type ligand and a metal bound to each other, and exhibiting high reactivity and stability during a variety of bonding activation reactions. T-shaped complexes can be prepared from acri PNP(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acrid in-10-ide), which is a pincer-type PNP ligand having an acridane structure, and metal complexes, which can be structurally rigid and thus exhibit excellent reactivity and stability based on minimized structural change thereof, can be prepared by introducing an acridane structure into the backbone thereof. The PNP ligand is structurally stable and has novel chemical properties, as compared to conventional similar ligands, and thus can be utilized in a wide range of catalytic reactions and material chemistry.

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Номер записи: 87
23-07-2020 дата публикации

Supported Metal Catalysts

Номер: US20200231532A1
Автор: Bishop Peter Trenton, Cookson James, Hancock Frederick Earnest, Hawker Steven, McNair Robert John
Принадлежит:

The present invention relates to supported metal catalysts, wherein the catalysts are modified by at least one amine, a method for the preparation thereof and hydrogenation processes utilising the supported metal catalysts. 1. A supported metal catalyst , wherein the catalyst is modified by at least one amine , provided that when the metal is Pt and the support is AlO , the amine is not:a) S-benzyl-L-cysteine;b) N-benzyl-S-benzyl-L-cysteine;c) L-cysteine ethyl ester;d) S-benzyl-L-cysteine ethyl ester;e) N-benzyl-S-benzyl-L-cysteine ethyl ester;f) S-phenyl-L-cysteine ethyl ester; org) N-benzyl-S-phenyl-L-cysteine ethyl ester.2. The catalyst of claim 1 , wherein the support is carbon claim 1 , alumina claim 1 , calcium carbonate claim 1 , titania claim 1 , silica claim 1 , zirconia claim 1 , ceria claim 1 , or a combination thereof.3. The catalyst of claim 2 , wherein the alumina is alpha-AlO claim 2 , beta-AlO claim 2 , gamma-AlO claim 2 , delta-AlO claim 2 , theta-AlOor a combination thereof.4. The catalyst of claim 2 , wherein the carbon is activated carbon claim 2 , carbon black claim 2 , or graphite.5. The catalyst of claim 2 , wherein the carbon is Norit Carbon GSX claim 2 , Ceca L4S claim 2 , Ceca 2S claim 2 , Ceca CPL claim 2 , Timcal T44 Graphite claim 2 , or a combination thereof.6. The catalyst of claim 1 , wherein at least one metal is a Group VIII metal or Group IB metal.7. The catalyst of claim 1 , wherein the metal is ruthenium claim 1 , rhodium claim 1 , palladium claim 1 , osmium claim 1 , iridium claim 1 , platinum claim 1 , gold claim 1 , silver claim 1 , copper claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , or a combination thereof.8. The catalyst of claim 1 , wherein the metal is palladium claim 1 , platinum claim 1 , gold claim 1 , or a combination thereof.9. The catalyst of claim 1 , wherein the metal loading is from about 0.01 wt % to about 20 wt %.10. The catalyst of claim 1 , wherein the amine is a natural amino acid claim 1 , non ...

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Номер записи: 88
01-09-2016 дата публикации

Metal-conjugated microporous polymers

Номер: US20160251331A1
Автор: Deng Weiqiao, Liu Xiaohuan, XIE YONG
Принадлежит:

A catalyst which can catalyze ring-addition reaction of COand an alkylene oxide at 0˜180° C. under 0.1˜8.0 MPa to produce a corresponding cyclic carbonate, and the preparation thereof. The catalyst is a conjugated microporous macromolecule polymer complexed with cobalt, chromium, zinc, copper or aluminium, and by using the macromolecule catalyst complexed with different metals to catalyze the reaction of COand alkylene oxide at normal temperature and normal pressure, a yield of the corresponding cyclic carbonate of 35%-90% can be obtained. The catalyst is easy to recover and the re-use of the catalyst has no influence on the yield; additionally, the yield can reach over 90% by controlling the reaction conditions. 2. The metal-conjugated microporous polymer polymer of wherein M is Cr.4. The metal-conjugated microporous polymer polymer of wherein M is Co.5. A method for preparing the metal-conjugated microporous polymer polymer of wherein M is Co claim 1 , Cr claim 1 , Zn claim 1 , or Cu claim 1 , and the method comprises:synthesis of the metal-conjugated microporous polymer: with anhydrous toluene and TEA as solvent (volume ratio=3˜4:1), CuI and tetrakis-(triphenylphosphine)palladium(0) as catalyst, a mixture solution of alkynyl benzene A and Salen-M-X or Salen-M (mole ratio=1˜4:1) is stirred under argon for 60˜90 hours at 25˜100° C., affording the metal-conjugated microporous polymer, wherein the mole ratio of CuI and alkynyl benzene A is 1:5˜10 and, and the mole ratio of tetrakis-(triphenylphosphine)palladium(0) and alkynyl benzene A is 1:20˜30 .6. A method for preparing the metal-conjugated microporous polymer of claim 1 , wherein M is Al claim 1 , and the method comprises:1) synthesis of a conjugated microporous polymer (CMP): with anhydrous toluene and TEA as solvent (volume ratio=3˜4:1), tetrakis-(triphenylphosphine)palladium(0) and CuI as catalyst, a mixture solution of alkynyl benzene A and Salen (mole ratio=1:1˜5) is stirred under argon for 60˜90 hours at 20 ...

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Номер записи: 89
09-09-2021 дата публикации

METHOD FOR PREPARING BETA-LACTAM DERIVATIVE

Номер: US20210276986A1
Автор: SHI Peng, ZENG Runsheng, ZHAO Yingsheng
Принадлежит:

The present invention relates to a method for preparing a β-lactam derivative, wherein a substituted N-quinoline-3-butenamide derivative is used as a substrate to react with a toluene derivative or a heterocyclic derivative at 90-150° C. in the presence of DTBP and a copper salt catalyst, to prepare a β-lactam derivative. According to the method of the present invention, a variety of β-lactam derivatives can be obtained with a high yield. The reaction of the present invention has mild reaction conditions, and simple reaction operation and post-treatment process, and is suitable for large-scale production. 2. The method according to claim 1 , wherein the copper salt catalyst is selected from the group consisting of cuprous bromide claim 1 , copper acetate claim 1 , cuprous chloride claim 1 , tetrakis(acetonitrile)copper hexafluorophosphate claim 1 , copper trifluoromethanesulfonate claim 1 , copper oxide claim 1 , copper bromide and any combination thereof.3. The method according to claim 1 , wherein the molar ratio of the substituted N-quinoline-3-butenamide derivative: di-tert-butyl peroxide:copper salt catalyst=1:1-3:0.05-0.2.4. The method according to claim 1 , wherein the copper salt catalyst is tetrakis(acetonitrile)copper hexafluorophosphate.5. The method according to claim 1 , wherein the molar ratio of the substituted N-quinoline-3-butenamide derivative: di-tert-butyl peroxide:copper salt catalyst=1:3:0.05-0.2.6. The method according to claim 1 , wherein the reaction temperature is 130 to 150° C.7. The method according to claim 1 , wherein the reaction system also comprises claim 1 , in addition to the toluene derivative of Formula (2) or the heterocyclic derivative of Formula (3) claim 1 , an additional organic solvent.8. The method according to claim 7 , wherein the organic solvent is selected from the group consisting of acetonitrile claim 7 , tetrahydrofuran claim 7 , N claim 7 ,N-dimethylformamide claim 7 , isopropanol and any combination thereof. The ...

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Номер записи: 90
13-11-2014 дата публикации

LIGAND FORMING ASYMMETRICAL TRANSFORMATION CATALYST FOR MAKING NEW PHARMACEUTICALS

Номер: US20140336402A1
Автор: LACKEY HERSHEL H., MCQUADE D. TYLER, PARK Jin Kyoon, Rexford Matthew D.
Принадлежит:

The present invention provides a catalyst complex or ligand, and compositions thereof, for use in a variety of organic reactions having high reactivity and enantioselectivity. The catalyst is a N-heterocyclic carbene having three fused rings with first and second rings being six-membered rings and the third being a five-membered ring. The first ring is fused to the second and has four substituents. The second ring has two nitrogens flanking a carbene atom with one nitrogen bound to a substituent. The carbene atom may optionally be bonded to a metal. The third ring is fused to the second ring and contains two nitrogens. The third ring of the catalyst has a double bond and two substituents on adjacent non-fused carbons. A non-fused nitrogen of the third ring is partially bonded to another substituent. Methods for the synthesis and use of the catalyst embodiments of the present invention are also provided. 170-. (canceled)72. The method of claim 71 , wherein each Rgroup is aryl.73. The method of claim 72 , wherein each Rgroup is phenyl.74. The method of claim 71 , wherein Ris aryl.76. The method of claim 75 , wherein two members of the group consisting of R claim 75 , Rand Rare the same and the third member of the group is different from the two members of the group that are the same.77. The method of claim 76 , wherein Rand Rare each methyl.78. The method of claim 75 , wherein R claim 75 , Rand Rare different from each other.79. The method of claim 75 , further comprising the step of isolating or purifying the product of the reacting step.80. The method of claim 75 , further comprising the step of measuring the product of the reacting step. This application claims benefit of priority to U.S. Provisional Patent Application No. 61/238,367 filed Aug. 31, 2009, which is hereby incorporated by reference in its entirety.The United States Government has rights in this invention pursuant to National Science Foundation (NSF) Grant No. CHE-0809261.1. Field of the InventionThe ...

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Номер записи: 91
07-09-2017 дата публикации

HOMOPIPERAZINE-BASED CATALYSTS FOR NEUTRALIZATION OF ORGANOPHOSPHORUS-BASED COMPOUNDS

Номер: US20170253568A1
Автор: Lau Edmond Y., Mayer Brian P., Valdez Carlos
Принадлежит:

Novel compositions of matter based on homopiperazine precursor materials and forming a homopiperazine-based ligand are disclosed, along with suitable techniques and materials for the synthesis and utilization thereof. In particular various synthetic schemes and techniques for applying the disclosed compositions of matter as a decontaminating agent. The decontaminating agents include homopiperazine-based ligand-metal complexes that are particularly effective at neutralizing toxicity of nerve agents, pesticides, and other toxic organophosphorus-based compounds. In preferred approaches, the homopiperazine-based ligand-metal complexes act as catalysts to facilitate substitution of a leaving group of the organophosphorus-based compound with a functional group that does not permit the organophosphorus-based compound to inactivate acetylcholinesterase upon introduction of the organophosphorus-based compound to a living organism such as insects and mammals. Advantageously, the catalytic homopiperazine-based ligand-metal complexes are formed using inexpensive, readily-available precursor materials, and may be utilized to neutralize toxins without relying on damaging caustic reactants or environmentally unfriendly organic solvents. 1. A composition of matter , comprising: a homopiperazine-based ligand.2. The composition of matter as recited in claim 1 , wherein the homopiperazine-based ligand is a bis-triazolyl homopiperazine ligand.3. The composition of matter as recited in claim 1 , comprising at least one spnitrogen atom and at least one sp3 nitrogen atom.4. The composition of matter as recited in claim 3 , wherein the nitrogen atoms form a central chelating site configured to chelate a metal cation placed in the chelating site.5. The composition of matter as recited in claim 4 , wherein the chelating site comprises two spnitrogen atoms and two spnitrogen atoms.7. The composition of matter as recited in claim 1 , the homopiperazine-based ligand being functionalized with a ...

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Номер записи: 92
30-09-2021 дата публикации

Nanocage-confined catalyst, preparation process and use thereof

Номер: US20210299644A1
Автор: He Wenjun, JIN Shaoqing, TAO Guiju, YANG Weimin, YU Fengping
Принадлежит:

A nanocage-confined catalyst has the formula: NC-m[M(Salen1)X]-n[M′(Salen2)]. NC is a material having a nanocage structure, and M(Salen1)X and M′ (Salen2) are active centers, respectively; each occurrence of M is independently selected from the group consisting of Co ion, Fe ion, Ga ion, Al ion, Cr ion, and a mixture thereof. Each occurrence of M′ is independently selected from Cu ion, Ni ion and a mixture thereof, m is 0 to 100; n is 0 to 100, with the proviso that at least one of m and n is not 0; each occurrence of Salen1 and Salen2 is independently a derivative of Shiff bases; X is an axial anion selected from the group consisting of substituted or unsubstituted acetate, substituted or unsubstituted benzene sulfonate, substituted or unsubstituted benzoate, F—, Cl—, Br—, I—, SbF6-, PF6-, BF4-, and a mixture thereof. 1. A nanocage-confined catalyst , characterized in that the catalyst has an active center of formula (I-1) and/or (I-2):{'br': None, 'M(Salen1)X\u2003\u2003(I-1)'}{'br': None, 'M′(Salen2)\u2003\u2003(I-2)'} {'br': None, 'NC-m[M(Salen1)X]-n[M′(Salen2)]\u2003\u2003(I)'}, 'such that the catalyst has formula (I)wherein:NC is a material having a nanocage structure,each occurrence of M is independently selected from the group consisting of Co ion, Fe ion, Ga ion, Al ion, Cr ion, and a mixture thereof; and each occurrence of M′ is independently selected from Cu ion, Ni ion and a mixture thereof;m is an integer of 0 to 100, n is an integer of 0 to 100; provided that at least one of m and n is not 0;each occurrence of Salen1 and Salen2 is independently a derivative of a Shiff base;{'sup': −', '−', '−', '−', '−', '−', '−, 'sub': 6', '6', '4, 'X is an axial anion, wherein each occurrence of X is independently selected from the group consisting of substituted or unsubstituted acetate, substituted or unsubstituted benzenesulfonate, substituted or unsubstituted benzoate, F, Cl, Br, I, SbF, PF, BF and a mixture thereof; provided that(1) when X is a substituted or ...

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Номер записи: 93
15-09-2016 дата публикации

NONPOLAR PHASE-SOLUBLE METATHESIS CATALYSTS

Номер: US20160264510A1
Автор: Bazzi Hassan S., Bergbreiter David E., Hongfa Chayanant
Принадлежит: The Texas A&M University System

One embodiment of the invention provides polyisobutylene (PIB) oligomers that are end-functionalized with ruthenium (Ru) catalysts. Such nonpolar catalysts can be dissolved in nonpolar solvents such as heptane, or any other nonpolar solvent that is otherwise not latently biphasic (i.e., if two or more solvent components are present, they remain miscible with each other throughout the entire reaction process, from the addition of substrate through to the removal of product). Substrate that is dissolved in the nonpolar solvent with the catalyst is converted into product. The lower solubility of the product in the nonpolar solvent renders it easily removable, either by extraction with a more polar solvent or by applying physical means in cases where the product precipitates from the nonpolar solvent. In this manner the catalysts are recycled; since the catalysts remain in the nonpolar solvent, a new reaction can be initiated simply by dissolving fresh substrate into the nonpolar solvent. 1. A method of catalyzing a chemical reaction , the method comprising: i) a non-polar solvent, wherein the solvent is not latently biphasic,', 'ii) a catalyst that is complexed to a non-polar support, wherein the catalyst-support complex is dissolved in the solvent, and', 'iii) a substrate molecule dissolved in the solvent, wherein the substrate molecule is a substrate for the catalyst;, 'a) providing a reaction composition, wherein the reaction composition comprisesb) allowing the substrate molecule to be catalyzed into a product, wherein the product is less soluble in the solvent compared to the substrate molecule; andc) separating the product from the reaction composition.2. The method of claim 1 , wherein the solvent is selected from the group consisting of alkanes claim 1 , heptane claim 1 , toluene claim 1 , dichloromethane claim 1 , dibutyl ether claim 1 , and combinations thereof.3. The method of claim 1 , wherein the solvent comprises heptane.4. The method of claim 1 , wherein ...

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Номер записи: 94
01-10-2015 дата публикации

Catalysts and process for liquid hydrocarbon Fuel Production

Номер: US20150275098A1
Автор: Ranaweera Samantha A., White Mark G.
Принадлежит: Mississippi State University

The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality distillates, gasoline components, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel supported bimetallic catalyst for conversion, and provides methods of preparing such novel catalysts and use of the novel catalysts in the process and system of the invention. 1. A process for the production of hydrocarbon fuel products from synthesis gas , the process comprising:a. a single reactor system wherein chemical reactions occur in the single reactor system; and,b. a dinuclear metal based catalyst.2. The process of claim 1 , wherein the synthesis gas is contacted in a Fischer-Tropsch reaction with the catalyst.3. The process of claim 2 , wherein the catalyst is a cluster supported on a support comprising a high-surface-area metal oxide claim 2 , and wherein the cluster comprises the active phase for syngas conversion.4. The process of claim 3 , wherein the cluster comprises a syngas conversion agent derived from a list of transition metals comprising cobalt claim 3 , iron claim 3 , nickel claim 3 , copper claim 3 , manganese claim 3 , molybdenum claim 3 , ruthenium claim 3 , and pair-wise combinations of these metals or metal oxides.5. The process of claim 4 , wherein the cluster further comprises at least one metal modifier selected from the elements comprising Groups 1A and 2A of the Periodic Table.6. The process of claim 3 , wherein the support comprises silica claim 3 , alumina claim 3 , titania claim 3 , or a zeolite.7. The process of claim 6 , wherein the support comprises a zeolite which further comprises at least one member selected from the group consisting of the zeolite-based heterogeneous catalyst HZSM-5 claim 6 , Mordenite claim 6 , MCM-22 claim 6 , MCM-41 claim 6 , H-Y-faujasite claim 6 , and H-beta zeolites.8. The ...

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Номер записи: 95
28-10-2021 дата публикации

Method for synthesizing thieno[3,2-b]pyridine-5(4h)-one derivative compound, using gold catalyst, and use therefor

Номер: US20210332063A1
Автор: Bo Hyun Mun, Dan Bi Sung, Hee Jae Shin, Hyi Seung Lee, Ji Hoon Lee, Jong Seok Lee, Sol Park, Yeon Ju Lee
Принадлежит: Korea Institute of Ocean Science and Technology KIOST

Disclosed are a method for synthesizing a thieno[3,2-b]pyridine-5(4H)-one derivative by using a gold catalyst and a use of the derivative compound, wherein the novel thieno[3,2-b]pyridine-5(4H)-one derivative of the present disclosure, which is a compound synthesized using gold as a catalyst, has fluorescence characteristics with a wide range of emission wavelengths and thus can be helpfully used in various industrial fields, such as physics, chemistry, and biomedicine research.

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Номер записи: 96
22-08-2019 дата публикации

CATALYTIC CARBONYLATION CATALYSTS AND METHODS

Номер: US20190256650A1
Автор: Allen Scott D., Coates Geoff, Farmer Jay J., Lee Han
Принадлежит: NOVOMER, INC.

In one aspect, the present invention provides catalysts for the carbonylation of heterocycles. The inventive catalysts feature metal-ligand complexes having cationic functional groups tethered to the ligand, wherein the tethered cationic groups are associated with anionic metal carbonyl species. The invention also provides methods of using the inventive catalysts to affect the ring opening carbonylation of epoxides. 126-. (canceled)28. (canceled)29. The catalyst of claim 27 , wherein Mand Mare independently selected from the group consisting of Zn(II) claim 27 , Cu(II) claim 27 , Mn(II) claim 27 , Co(II) claim 27 , Ru(II) claim 27 , Fe(II) claim 27 , Rh(II) claim 27 , Ni(II) claim 27 , Pd(II) claim 27 , Mg(II) claim 27 , Al(III) claim 27 , Cr(III) claim 27 , Cr(IV) claim 27 , Ti(IV) claim 27 , Fe(III) claim 27 , Co(III) claim 27 , Ti(III) claim 27 , In(III) claim 27 , Ga(III) claim 27 , and Mn(III).30. The catalyst of claim 27 , wherein Mand Mare aluminum.31. The catalyst of claim 27 , wherein Mand Mare chromium.32. The catalyst of claim 27 , wherein Z comprises an atom selected from the group consisting of nitrogen claim 27 , phosphorous claim 27 , arsenic claim 27 , and sulfur.34. The catalyst of claim 27 , wherein the linker comprises 1-30 atoms including at least one carbon atom and optionally one or more atoms selected from the group consisting of N claim 27 , O claim 27 , S claim 27 , Si claim 27 , B claim 27 , and P.36. The catalyst of claim 27 , wherein the at least one anionic metal carbonyl species is a compound of formula: [QM′(CO)] claim 27 , wherein:Q is a ligand and need not be present,M′ is a metal atom,d is an integer between 0 and 8 inclusive,e is an integer between 1 and 6 inclusive,w is a number such as to provide a stable anionic metal carbonyl complex, andy is the charge of the anionic metal carbonyl species.37. The catalyst of claim 36 , wherein Q is a phosphine ligand or a cyclopentadienyl (cp) ligand.38. The catalyst of claim 27 , wherein the ...

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Номер записи: 97
13-08-2020 дата публикации

PROCESS FOR THE REMOVAL AND RETURN OF A CATALYST TO A LIQUID PHASE MEDIUM

Номер: US20200255457A1
Автор: MURRAY Paul, NORTH Christopher, WILKES Robin
Принадлежит: PHOSPHONICS LTD

A process for the selective removal of a component from a liquid phase and subsequently returning the component to a liquid phase is disclosed. A novel compound of formula I [SUP]-[[L]-[G]](I) in which L is a linking group, G is an aryl group having a leaving group LG selected from Cl, Br, I, sulfonate such as triflate, a diazo group, a nitrile, an ester and an alkoxy group and substituent Q is selected from H, NR, OR, COR, F, Cl, NOCN and SUP is a support having a plurality of groups -[L]-[G] bound to the support is contacted with the liquid phase to bind the component to the compound I thereby forming a captured component which is separated from and may be returned to the liquid phase. The compound I is especially useful in binding homogeneous catalysts to remove it from a reaction medium and selectively returning the catalyst to the reaction medium at a later stage. The compound is particularly useful for cross-coupling reactions, for example in Suzuki reactions. 14-. (canceled)5. A compound of formula I:{'br': None, 'sub': 'n', '[SUP][[L]-[G]]\u2003\u2003(I)'} L is a group linking G to SUP— and is selected from the group consisting of:', {'sub': 2', 'h', 'd', 'm, 'i) —(CH)S(O)[Y]'}, {'sub': 2', 'n', '2', 'n', 'm, 'ii) ((CH)Y(CH)); and'}, {'sub': 2', 'h', 'd', 'm', 'n', 'm', '2, 'iii) —(CH)[S(O)](CHD)Zwhere D is selected from the group consisting of H, CN, OH, —C(O)OR, —C(O)NR—C(O)OG, and —CONRG and at least one of S, D, and Z are present; and'}, {'sub': d', '2', 'm', 'm, 'wherein Y is independently selected from the group consisting of O, NR, S(O), CO, CO, —NRCOZ—, —ZCONR—, —C═N—, and a heterocyclic ring where Z is independently O, S, NR;'}, 'd is independently 0 to 2, h is from 1 to 15, m is independently 0 or 1 and n is independently 0 to 4 and R is independently selected from H or a 01-12 alkyl group and a phenyl group;', 'G is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group and a heteroaryl group wherein the group G ...

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Номер записи: 98
28-09-2017 дата публикации

CHIRAL BINUCLEAR METAL COMPLEXES FOR STEREOSELECTIVE GLYCOSIDE HYDROLYSIS OF SACCHARIDES

Номер: US20170275303A1
Автор: STRIEGLER SUSANNE
Принадлежит:

Disclosed herein is a class of chiral binuclear metal complexes for stereoselective glycoside hydrolysis of saccharides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and α- and β-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols. 1. A chiral binuclear transition metal complex for stereoselective glycoside hydrolysis of saccharides , said chiral binuclear transition metal complex comprising:a Schiff-base ligand derived from chiral diamino building blocks; anda binuclear transition metal core.2. The chiral binuclear transition metal complex of wherein said chiral diamino building block is varied by changing the distance of the metals of said binuclear core in order to tune the complexes selectivity.3. The chiral binuclear transition metal complex of wherein said Schiff-base is a reduced or non-reduced Schiff-base derived from aliphatic linear claim 1 , aliphatic cyclic diamino alcohols or aromatic aldehydes.4. The chiral binuclear transition metal complex of wherein said ligand is a penta- or heptadentate ligand derived from pyridinecarbaldehydes claim 1 , benzaldehydes claim 1 , linear or cyclic diamines or diamino alcohols.6. The chiral binuclear transition metal complex of wherein said metal core is a Lewis-acidic metal ion selected from the group consisting of copper claim 1 , zinc claim 1 , ...

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Номер записи: 99
05-10-2017 дата публикации

Optically Active a-Trifluoromethyl-B-Amino Acid Derivative Production Method

Номер: US20170283411A1
Автор: KUMAGAI Naoya, SHIBASAKI Masakatsu, Yin Liang
Принадлежит: Microbial Chemistry Research Foundation

A method for producing an optically active α-trifluoromethyl-β-amino acid derivative, the method including: allowing a compound represented by the following General Formula (1) and a compound represented by the following General Formula (2) to react in the presence of a copper-optically active phosphine complex obtained from a copper compound and an optically active phosphine compound, to thereby obtain an optically active α-trifluoromethyl-β-amino acid derivative represented by the following General Formula (3): 2. The method for producing an optically active α-trifluoromethyl-β-amino acid derivative according to claim 1 , wherein the Rin the General Formula (1) and the General Formula (3) is a tert-butoxycarbonyl group.3. The method for producing an optically active α-trifluoromethyl-β-amino acid derivative according to claim 1 , wherein the Rin the General Formula (1) and the General Formula (3) is a substituted or unsubstituted aryl group.5. The method for producing an optically active α-trifluoromethyl-β-amino acid derivative according to claim 1 , wherein the copper compound is a compound represented by the following General Formula (A):{'br': None, 'sub': 3', '4, '[Cu(CHCN)]X\u2003\u2003General Formula (A)'}{'sub': 3', '4', '6', '4, 'where in the General Formula (A), X represents Cl, NO, ClO, PF, or BF.'} The present invention relates to a method for producing an optically active α-trifluoromethyl-β-amino acid derivative.Optically active β-amino acids and derivatives thereof are useful chiral building blocks in organic synthetic chemistry, especially medicinal synthetic chemistry.One useful synthesis method for the optically active β-amino acids and derivatives thereof is asymmetric Mannich reaction. One example of the asymmetric Mannich reaction is presented in the following Scheme 1.In the asymmetric Mannich reaction, as presented in the above Scheme 1, use of a base and a metal (M) deprotonates a carbonyl compound where a hydrogen atom is bonded to carbon ...

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Номер записи: 100