СШИВАЕМАЯ КОМПОЗИЦИЯ, СПОСОБНАЯ К СШИВАНИЮ ПО РЕАКЦИИ ПРИСОЕДИНЕНИЯ МИХАЭЛЯ (RMA)

FIELD: chemistry. SUBSTANCE: invention relates to a crosslinkable composition to crosslinking by the Michael addition reaction (RMA) to obtain a cured composition containing a component A having at least two acidic protons of the C-H in activated methylene or methine groups (RMA-donor group), a component B with at least two activated unsaturated groups (RMA-acceptor group) and C catalytic system containing or capable of producing a basic catalyst capable of activating RMA reaction between components A and B. The crosslinkable to position further comprises containing XH component D group, which also serves as a donor in the reaction of Michael addition, capable of reacting with component B under the influence of C catalyst, wherein X represents N, P, O, S, or wherein X is a C as a part of the acidic methyl group (CH 3 ). In this X-H group of component D is characterized by a pKa value determined in aqueous medium, at least one unit less than the corresponding value in the C-H groups in component A. Component A is preferably a malonate or acetoacetate. Also described are a set of two parts to obtain a crosslinkable composition, applying the component D as an additive to the crosslinkable RMA compositions blend RMA-additives for coatings of crosslinkable compositions use a mixture of RMA-additives in crosslinkable RMA-composition applying crosslinkable compositions for coatings as well as coating compositions, paints or films. As described coating composition further comprising one or more additives for coatings, such as pigments with the binder and the solvent. EFFECT: providing a reaction time of induction profile for which slows curing and after which it is accelerated to quickly complete curing, the possibility to align after the application of the coating composition as a liquid with subsequent solidification, the absence of defects and surface irregularities of the coating. 30 cl, 7 dwg, 10 tbl, 15 ex С 2 2625122 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) з ааа а 53) ВО © ...

СШИВАЕМАЯ КОМПОЗИЦИЯ, СПОСОБНАЯ К СШИВАНИЮ ПО РЕАКЦИИ ПРИСОЕДИНЕНИЯ МИХАЭЛЯ (RMA)

... 1. Сшиваемая композиция, содержащая:a. компонент А с по меньшей мере 2 кислотными протонами С-Н в активированных метиленовых или метановых группах (RMA-донорная группа), иb. компонент В с по меньшей мере 2 активированными ненасыщенными группами (RMA-акцепторная группа), иc. каталитическую систему С, содержащую или способную вырабатывать основный катализатор, способный активировать реакцию RMA между компонентами А и В,характеризующаяся тем, что данная сшиваемая композиция дополнительно содержит содержащий Х-Н группу компонент D, который также выступает донором в реакции присоединения Михаэля, способным вступать в реакцию с компонентом В под воздействием катализатора С, где X представляет собой N, Р, О, S, или где X представляет собой С как часть кислотной метильной группы (СН).2. Сшиваемая композиция по п. 1, отличающаяся тем, что RMA-акцепторные группы в компоненте В представляют собой акрилоиловые группы.3. Сшиваемая композиция по п. 1, отличающаяся тем, что RMA-донорные группы в компоненте ...

Verfahren zur Herstellung von Acetylenmonoalkoholen

VERFAHREN ZUR HERSTELLUNG VON 2-METHYL3-HYDROXYMETHYL-PENTEN(1)-ON(4)

Synthesis of chiral cyanohydrins

A novel catalytic formulation and its preparation technical field

PROCEDURE FOR THE ASYMMETRICAL SYNTHESIS

NEW AMINOPHOSPHIN PHOSPHINITE, YOUR PROCEDURE AND YOUR USE FOR ENANTIOSELEKTIVE REACTIONS

PROCEDURE FOR THE PRODUCTION OF AMINES CATALYZED REDUCTIVE ONES THROUGH HOMOGENEOUS AMINIERUNG FROM CARBONYLVERBINDUNGEN

PROCEDURE FOR THE PRODUCTION OF PEROXYACETALEN AND PEROXYKETALEN

PERFLUOROSULFONYLMETHIDE CONNECTIONS; THEIR USE WITH THE PRODUCTION OF CC CONNECTIONS

Procedure for the production of Peroxyacetalen and Peroxyketalen

Titanium catalyst, organotitanium reaction reagent, processes for producing these, and method of reaction using these

MICROENCAPSULATED CATALYST, METHODS OF PREPARATION AND METHODS OF USE THEREOF

A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.

PREPARATION OF TERTIARY AMINES

Tertiary monoamines and polyamines are prepared by reacting primary aromatic alcohols, aromatic aldehydes, secondary alcohols, ketones, polyether alcohols, aliphatic or aromatic polyhydric alcohols, polyaldehydes, amino alcohols and ethylene oxide adducts thereof with ammonia, a primary aliphatic amine or a secondary aliphatic amine, in the presence of a homogeneous colloidal catalyst prepared by reducing a mixture of components A and B, provided that at least one of A and B is a carboxylate or a mixture of components A, B and C, wherein A is a copper or solver carboxylate or intramolocular complex, component B is a Group VIII, manganese or zinc carboxylate or intramolecular complex, and component C is a fatty acid or alkali metal or alkaline earth metal carboxylate thereof. The colloidal catalyst permit tertiary amine to be prepared at high yields, without reducing the activity and selectivity of the catalysts.

USE OF AN IONIC COMPOUND, DERIVED FROM MALONONITRILE AS A PHOTOINITIATOR, RADICAL INITIATORS OR CATALYSER IN POLYMERIZATION PROCESSES OR AS A BASIC DYE

La présente invention concerne l'utilisation de composés ioniques dérivés du malononitrile comme photoinitiateur source d'acide catalyseur dans un procédé de polymérisation ou de réticulation de monomères ou de prépolymères capables de réagir par voie cationique, ou comme catalyseur dans un procédé pour la modification de polymères. L'invention vise également l'utilisation de composés ioniques dérivés du malononitrile dans les colorants cationiques.

CATALYST AND PROCESS FOR THE CYANATION OF ALDEHYDES

A vanadium catalyst and a process for cyanating an aldehyde are provided. The vanadium catalyst comprises a Vanadium(V) salen complex. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si- CN bond or a C-(C=O)-CN moiety; and ii) a substrate susceptible to nucleophilic attack not comprising a halogen leaving group; in the presence of a chiral vanadium catalyst. The cyanide source is preferably an alkali metal cyanide and the substrate susceptible to nucleophilic attack not comprising a halogen leaving group is a carboxylic anhydride.

SURFACE MODIFIED CARBONATE MATERIALS

Greffage d'un polymère à la surface d'un matériau carboné comportant des fonctions carboxyles, amines et/ou hydroxyles à sa surface. On met ce matériau en suspension dans une solution comprenant le polymère à greffer, lequel comporte une fonction carboxyle, amine et/ou hydroxyle, la solution comprenant aussi un solvant du polymère. On effectue ensuite un traitement provoquant la déshydratation en une fonction carboxyle, d'une fonction amine et/ou hydroxyle et l'on greffe ainsi le polymère sur le matériau carboné par des liens esters ou amides. Utilisation dans la cathode ou l'anode d'un générateur électrochimique, dans un matériau polymère peu polaire, dans une encre, et comme dépôt conducteur sur un plastique flexible utilisé comme contact électrique, comme protection électromagnétique ou comme protection antistatique. Grafting of a polymer on the surface of a carbonaceous material comprising carboxyl, amine and / or hydroxyl functions on its surface. This material is suspended in a solution comprising the polymer to graft, which has a carboxyl, amine function and / or hydroxyl, the solution also comprising a solvent for the polymer. We then performs a treatment causing dehydration by a carboxyl function, an amine and / or hydroxyl function and one grafts thus the polymer on the carbonaceous material by ester links or amides. Use in the cathode or anode of a generator electrochemical, in a slightly polar polymer material, in an ink, and as a conductive deposit on a flexible plastic used as a contact electric, as electromagnetic protection or as antistatic protection.

PROCESS FOR THE PREPARATION OF A CATALYTIC MICROCOMPOSITE FROM A SILICATE AND A HIGHLY FLUORINATED ION EXCHANGE RESIN

The present invention relates to a process for preparing a microcomposite comprising a highly fluorinated ion-exchange polymer containing pendant sulfonate functional groups, said polymer existing as aggregated particles entrapped within and dispersed throughout a network of silica. Due to their high surface area and acid functionality, these microcomposites possess wide utility as improved solid acid catalysts, particularly in the substitution of aromatic compounds, in the decomposition of hydroperoxides, and in the isomerization of olefins.

Verfahren zur Durchführung katalytischer Reaktionen mit organischen Verbindungen.

Procédé pour catalyser des réactions conduites dans des milieux non aqueux et qui sont catalysées par des acides

Verfahren zur Herstellung von wasserhaltigem Paraldehyd

Verfahren zur Herstellung von Aminopolyacetonitrilen

Verfahren zur Herstellung von Peroxyacetalen und Peroxyketalen

Procédé de préparation catalytique d'esters

Prepn. of imidazolyl-vinyl ether cpds. - antibacterials and antifungals in good yield by stereoselective, economic process

Prepn. of imidazolyl-vinyl ether cpds. of formula (I) and their acid addition salts comprises reaction of a ketone of formula (II) with an ether of formula (III) in an aq. soln. of a strong base and in the presence of a second liquid phase consisting of a water immiscible organic solvent and a quaternary tetrealkylammonium salt as phase transfer catalyst. In the formula Im = IH - imidazol-1-yl; R = H or Me, Ar1, Ar2 = phenyl opt. substd. by 1 or 2 Cl; Alk = 1-3C alkyl; Z = a gp. removable by a base. The phase transfer catalyst is methyltrioctylammonium chloride. The base is NaOH and the organic solvent is toluene. (I) are antibacterials and antifungals known from me.g. EP0008804. This process is cheaper, technically easier and gives better yeilds than the process described in EP0069754. The products are almost exclusively of the Z-configmation which is more effective against bacteria and fungi.

METHOD HYDRO HALOGENATION OF UNSATURATED HYDROCARBON

COMPOSITIONS CONTAINING IONIC LIQUIDS AND USES THEREOF, IN PARTICULAR IN ORGANIC SYNTHESIS

Improvements brought to the processes for the preparation of diacetone-sorbose

L-Pyrrolidone-5-carboxylic acid prodn using selective catalyst - by melt cyclisation of glutamic acid

Catalyst, used in isocyanate trimerisation

Cette invention concerne l'utilisation en tant que catalyseur de réaction de cyclotrimérisation d'isocyanates d'un hydrogénocarbonate d'un cation qui, soit en tant que tel, soit sous forme complexée avec un agent complexant, a un rayon ionique ou moléculaire moyen supérieur à 1 Å, de préférence à 1, 5 Å et qui est au moins partiellement soluble dans le milieu réactionnel.

NEW CATALYSTS AND USE THEREOF IN THE PRODUCTION OF POLYURETHANES

The present invention relates to novel catalysts and processes for their preparation and their preferred use for use in the preparation of polyisocyanate-rich products.

NEW CATALYSTS AND USE THEREOF IN THE PRODUCTION OF POLYURETHANES

CATALYSER AND PROCESS OF TRIMERIZAÇÃO OF ISOCYANATE

Catalyst,method for producing the same,and method for producing optically active anti-1,2-nitroalkanol compound

CONJUGATED MICROPOROUS MACROMOLECULE CATALYST COMPLEXED WITH COBALT, CHROMIUM, ZINC, COPPER OR ALUMINIUM, PREPARATION AND USE THEREOF

Disclosed are a type of catalyst which can catalyse the ring-addition reaction of CO2 and an alkylene oxide at 0-180°C under 0.1-8 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 catalysts complexed with different metals to catalyse the reaction of CO2 and 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.

IONIC LIQUIDS WITH A CATION COMPRISING A BASIC MOIETY

Use of ionic liquids as solvents in base-catalysed chemical reactions wherein the ionic liquid is composed of at least one species of cation and at least one species of anion, characterised in that a cation of the ionic liquid comprises a positively charge moiety and a basic moiety, and further wherein such ionic liquids may be used as promoters or catalysts for the chemical reactions.

MAIN-GROUP METAL-BASED ASYMMETRIC CATALYSTS AND APPLICATIONS THEREOF

The present invention relates to a method and catalysts for the stereoselective addition of a nucleophile to a reactive π-bond of a substrate. The chiral, non-racemic catalysts of the present invention constitute the first examples of catalysts for nucleophilic additions that comprise a main-group metal and a tri- or tetra-dentate ligand.

SURFACE MODIFIED CARBONATE MATERIALS

Disclosed is a method for grafting a polymer onto the surface of a carbonate material with carboxyl, amine, and/or hydroxyl functions on its surface. Said material is placed in suspension in a solution including the polymer to be grafted, which has a carboxyl, amine, and/or hydroxyl function, said solution also being comprised of a polymer solvent. A process which stimulates the dehydration into a carboxyl function of an amine and/or hydroxyl function is then performed, and the polymer is grafted onto the carbonate material using ester or amide links. The invention can be used in the cathode or naode of an electrochemical generator, in polymer materials with low polar properties, in ink, and also as a conductive coating on flexible plastic used as an electrical contact, as electromagnetic shielding, or as static protection.

MALONONITRILE-DERIVATIVE ANION SALTS, AND THEIR USES AS IONIC CONDUCTING MATERIALS

The invention is related to ionic compounds, derivatives of malononitrile, in which the anionic load has been displaced. An ionic compound disclosed by the invention includes an anionic portion combined with at least one cationic portion M+m in sufficient numbers to ensure overall electronic neutrality; the compound is further comprised of M as a hydroxonium, a nitrosonium NO+, an ammonium -NH4+, a metallic cation with the valence m, an organic cation with the valence m, or an organometallic cation with the valence m. The anionic portion corresponds to one of the formulas RD-Y-C(CN)2- or Z-C(CN)2-, wherein Z is an electroattractive group, RD is an organic radical, and Y is a carbonyl, a thiocarbonyl, a sulphonyl, a sulphinyl, or a phosphonyl. The compounds can be used notably for ionic conducting materials, electronic conducting materials, colorants, and the catalysis of various chemical reactions.

PROCESS FOR THE PREPARATION OF A CATALYTIC MICROCOMPOSITE FROM A SILICATE AND A HIGHLY FLUORINATED ION EXCHANGE RESIN

The present invention relates to a process for preparing a microcomposite comprising a highly fluorinated ion-exchange polymer containing pendant sulfonate functional groups, said polymer existing as aggregated particles entrapped within and dispersed throughout a network of silica. Due to their high surface area and acid functionality, these microcomposites possess wide utility as improved solid acid catalysts, particularly in the substitution of aromatic compounds, in the decomposition of hydroperoxides, and in the isomerization of olefins.

Low pressure catalytic ethynylation process

In accordance with the present invention, there is provided herein an improved low pressure, stirred, catalytic process by which butynediol can be produced continuously at a high rate of production, under safe conditions, and without simultaneously forming an excessive amount of undesirable by-products. The process of this invention can be carried out by heating acetylene and formaldehyde, at relatively low temperatures as compared to other processes using supported catalysts, in the presence of a stirred aqueous slurry of a finely-divided complex cuprous acetylide catalyst prepared from a precursor containing greater than 20% and less than 35% by weight of copper, and 0-3%, preferably 2-3%, by weight of bismuth, as the oxides, on a magnesium silicate carrier.

Asymmetric reaction catalyst and method for preparing optically active compound using the same

An asymmetric reaction catalyst is obtained by mixing a pentavalent niobium compound and an optically active triol or tetraol having a binaphthol structure of R or S configuration, and the triol is represented by the following formula: (wherein, Y is divalent hydrocarbon and R1 is a hydrogen atom, a halogen atom, a trifluoromethyl group, or an alkyl group or alkoxy group having at most 4 carbons).

Metal catalysts and methods for making and using same

Compounds having the formula: are disclosed. M¹ and M² are the same or different and are transition metal atoms or ions; Z² and Z³, independently, are the atoms necessary to complete a 3-12 membered heterocyclic ring; Z¹ is an alkylene or arylene group; Q¹ and Q² are the same or different and are electron withdrawing groups; L¹ and L³, taken together, represent -O-CR¹³-O-; L² and L⁴, taken together, represent -O-CR¹⁴-O-; and R¹³ and R¹⁴ are the same or different and are selected from the group consisting of alkyl groups and aryl groups or R¹³ and R¹⁴ represent alkylene or arylene groups that are directly or indirectly bonded to one another. Methods for making such compounds are also disclosed, as are intermediates which can be used in their preparation. Also disclosed are methods for carrying out C-H insertion ...

Perfluorinated amide salts and their uses as ionic conducting materials

The invention concerns ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention is comprised of an amide or one of its salts, including an anionic portion combined with at least one cationic portion M<+m >in sufficient numbers to ensure overall electronic neutrality; is the compound is further comprised of M as a hydroxonium, a nitrosonium NO<+>, an ammonium -NH4+, a metallic cation with the valence m, an organic cation with the valence m, or an organometallic cation with the valence m. The anionic portion matches the formula RF-SOx-N-Z, wherein RF is a perfluorinated group, x is 1 or 2, and Z is an electroattractive substituent. The compounds can be used notably for ionic conducting materials, electronic conducting materials, colorants, and the catalysis of various chemical reactions.

Аsуmmеtriс rеасtiоn саtаlуst аnd mеthоd fоr prеpаring оptiсаllу асtivе соmpоund using thе sаmе

Аn аsуmmеtriс rеасtiоn саtаlуst is оbtаinеd bу miхing а pеntаvаlеnt niоbium соmpоund аnd аn оptiсаllу асtivе triоl оr tеtrаоl hаving а binаphthоl struсturе оf R оr S соnfigurаtiоn, аnd thе triоl is rеprеsеntеd bу thе fоllоwing fоrmulа: (whеrеin, Y is divаlеnt hуdrосаrbоn аnd R1 is а hуdrоgеn аtоm, а hаlоgеn аtоm, а trifluоrоmеthуl grоup, оr аn аlkуl grоup оr аlkоху grоup hаving аt mоst 4 саrbоns).

Аsуmmеtriс rеасtiоn саtаlуst аnd mеthоd fоr prеpаring оptiсаllу асtivе соmpоund using thе sаmе

Аn аsуmmеtriс rеасtiоn саtаlуst is оbtаinеd bу miхing а pеntаvаlеnt niоbium соmpоund аnd аn оptiсаllу асtivе triоl оr tеtrаоl hаving а binаphthоl struсturе оf R оr S соnfigurаtiоn, аnd thе triоl is rеprеsеntеd bу thе fоllоwing fоrmulа: (whеrеin, Y is divаlеnt hуdrосаrbоn аnd R1 is а hуdrоgеn аtоm, а hаlоgеn аtоm, а trifluоrоmеthуl grоup, оr аn аlkуl grоup оr аlkоху grоup hаving аt mоst 4 саrbоns).

СПОСОБ ПОЛУЧЕНИЯ БУМАГИ И КАРТОНА

FIELD: paper industry. SUBSTANCE: invention relates to pulp and paper industry. Method comprises introducing fillers, anionic polysaccharides and cationic agents into a mixing zone to form a filler composition. Obtained filler composition is introduced by means of a pump into an aqueous suspension comprising cellulosic fibres and dehydrated. EFFECT: invention improves control of thickness and strength properties of paper and cardboard. 25 cl, 1 tbl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 601 465 C2 (51) МПК D21H 17/25 (2006.01) D21H 17/28 (2006.01) D21H 23/06 (2006.01) D21H 23/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013158186/05, 05.06.2012 (24) Дата начала отсчета срока действия патента: 05.06.2012 (72) Автор(ы): СИМОНСОН Патрик (SE) (73) Патентообладатель(и): АКЦО НОБЕЛЬ КЕМИКАЛЗ ИНТЕРНЭШНЛ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: R U 08.06.2011 EP 11169107.7; 08.06.2011 US 61/494,475 (43) Дата публикации заявки: 20.08.2015 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: WO 2009101483 A2, 22.01.2009. RU 2244776 C2, 20.01.2005. RU 2274692 C2, 20.04.2006. RU 2363799 C1, 10.08.2009. EP 0227465 A1, 01.07.1987. US 20090162642 A1, 25.01.2009. EP 2325388 A1, 25.05.2011. (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2014 EP 2012/060541 (05.06.2012) (87) Публикация заявки PCT: 2 6 0 1 4 6 5 WO 2012/168204 (13.12.2012) R U 2 6 0 1 4 6 5 (45) Опубликовано: 10.11.2016 Бюл. № 31 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ПОЛУЧЕНИЯ БУМАГИ И КАРТОНА (57) Реферат: Изобретение относится к целлюлознопомощью насоса в водную суспензию, бумажной промышленности. Способ включает содержащую целлюлозные волокна, и введение наполнителей, анионных полисахаридов обезвоживают ее. Изобретение позволяет и катионных агентов в зону смешения с ...

HOCHMOLEKULARE, UNLOESLICHE CARBODIIMIDISIERUNGSKATALYSATOREN

PROCESS FOR THE PREPARATION OF POSSIBLY SUBSTITUTED CINNAMIC ACID IN THE PRESENCE OF A CATALYST

A novel catalytic formulation and its preparation technical field

The present invention describes a generic methodology to formulate a composite solid useful for catalyzing variety of reactions, the present invention in particular relates to a heterogeneous catalyst as a formulation constituting a solid support having deposited thereon a catalytically active material, which is practically insoluble in variety of liquid media, the said insoluble material is constructed from secondary building blocks derived from suitable organometallic active components and the organometallic active component is molecularly modified so as to introduce two or more negatively charged functional groups, these molecularly modified organometallic components upon interaction with salts of Ca<2+,> Sr<2+> and Ba<2+>, provide practically insoluble solid material and the invention further ascertains various ways of formulating organometallic active material on as solid support as a solid catalyst, the methodology is suitable for preparation of wide variety of catalysts having applications ...

METAL CATALYST AND PROCEDURE FOR ITS PRODUCTION AND USE

COMPOSITIONS, THE IONI LIQUIDS CONTAINING, AND THEIR VEWENDUNGEN, IN PARTICULAR IN THE ORGANIC SYNTHESIS

PROCEDURE IN MICRO-CHANNEL REACTORS WITH BOUND CATALYST AND A BOUND CATALYST OR A BOUND CHIRALE AID CONTAINING SYSTEMS

CATALYST SYSTEM FOR ALDOL REACTIONS

Process for preparing asymmetric compound by using metal complex

Process for the production of paper and board

The present invention relates to a process for the production of paper and board which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibres; and (c) dewatering the obtained suspension. The present invention also relates to a process for the production of a filler composition which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into a storage tank.

Process for the production of paper and board

The present invention relates to a process for the production of paper and board which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibres; and (c) dewatering the obtained suspension. The present invention also relates to a process for the production of a filler composition which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into a storage tank.

METAL CATALYSTS AND METHODS FOR MAKING AND USING SAME

Compounds having formula (A) are disclosed. M1 and M2 are the same or different and are transition metal atoms or ions; Z2 and Z3, independtly, are the atoms necessary to complete a 3-12 membered heterocyclic ring; Z1 is an alkylene or arylene group; Ql and Q2 are the same or different and are electron withdrawing groups; L1 and L3, taken together, represent -O-CR13-O-; L2 and L4, taken together, represent -O-CR14-O-; R13 and R14 are the same or different and are selected from the group consisting of akyl groups and aryl groups or R13 and R14 represent alkylene or arylene groups that are directly or indirectly bonded to one another. Methods for making such compounds are also disclosed, as are intermediates which can be used in their preparation. Also disclosed are methods for carrying out C-H insertion reactions using bis-transition metal catalysts, such as the above compounds. Procedures for preparing d-threo methylphenidate, tolterodine, CDP-840, nominfensine, and sertraline, are described ...

ACID CATALYZED PROCESS

This invention provides an improved process for the conversion of reactant into a reaction product, in the presence of a solid acid catalyst comprising sulfonic acid groups covalently bonded to a polymeric chain, wherein the improvement comprises increasing the rate of conversion, on an equivalent sulfonic acid basis, by providing, as said polymeric chain a compound represented by the general formula: M(O3ZOxR)n wherein M is a tetravalent metal ion; Z is a pentavalent atom, selected from the group consisting of elements of Group V of the Periodic Table of the Elements having an atomic weight greater than 30; x varies from 0 to 1; R is select d from the group consisting of organo radicals and mixtures of hydrogen radicals and organo radicals; and n varies from 1 to 2; provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom.

CATALYST AND PROCESS FOR PREPARING LOW-VISCOSITY AND COLOR-REDUCED POLYISOCYANATES CONTAINING ISOCYANURATE GROUPS

Catalyst and process for preparing low-viscosity and color-reduced polyisocyanates containing isocyanurate groups.

PROCESS FOR THE SYNTHESIS OF .alpha.-CHLOROMETHYL CHLOROFORMATE

ANTIFUNGAL COMPOUNDS AND PROCESSES FOR MAKING

Provided are polymorphic forms of compound 5 or 5*, or mixtures thereof, and polymorph forms of compound 14 or 14*, or mixtures thereof. Also provided are methods of preparing compound 5 or 5*, or mixtures thereof, and methods of preparing compound of 14 or 14*, or mixtures thereof, which are useful as antifungal agents. In particular, provided is new methodology for preparing polymorphs of the compounds described and substituted derivatives thereof.

USE OF AN IONIC COMPOUND, DERIVED FROM MALONONITRILE AS A PHOTOINITIATOR, RADICAL INITIATORS OR CATALYSER IN POLYMERIZATION PROCESSES OR AS A BASIC DYE

... ² La présente invention concerne l'utilisation de composés ²ioniques dérivés du malononitrile comme photoinitiateur source ²d'acide catalyseur dans un procédé de polymérisation ou de ²réticulation de monomères ou de prépolymères capables de réagir ²par voie cationique, ou comme catalyseur dans un procédé pour ²la modification de polymères. L'invention vise également ²l'utilisation de composés ioniques dérivés du malononitrile ²dans les colorants cationiques.² ...

USE OF AN IONIC COMPOUND, DERIVED FROM MALONONITRILE AS A PHOTOINITIATOR, RADICAL INITIATORS OR CATALYSER IN POLYMERIZATION PROCESSES OR AS A BASIC DYE

La présente invention concerne l'utilisation de composés ioniques dérivés du malononitrile comme photoinitiateur source d'acide catalyseur dans un procédé de polymérisation ou de réticulation de monomères ou de prépolymères capables de réagir par voie cationique, ou comme catalyseur dans un procédé pour la modification de polymères. L'invention vise également l'utilisation de composés ioniques dérivés du malononitrile dans les colorants cationiques.

CATALYST AND METHOD FOR TRIMERIZATION OF ISOCYANATES

Cette invention concerne l'utilisation en tant que catalyseur de réaction de cyclotrimérisation d'isocyanates d'un hydrogénocarbonate d'un cation qui, soit en tant que tel, soit sous forme complexée avec un agent complexant, a un rayon ionique ou moléculaire moyen supérieur à 1 .ANG., de préférence à 1,5 .ANG. et qui est au moins partiellement soluble dans le milieu réactionnel. L'invention concerne également un procédé de préparation de polyisocyanates (poly)isocyanurates par cyclotrimérisation catalytique d'isocyanates dans lequel on utilise un système catalytique comprenant en tant que catalyseur un catalyseur de cyclotrimérisation à base d'un sel d'ammonium quaternaire et comme co-catalyseur l'imidazole.

Amino functionalization Yb

PROCESS FOR PRODUCING BISPHENOL A

본 발명은 색상이 고온에서 안정되고 착색되지 않는 비스페놀 A의 제조방법에 관한 것이다. The present invention relates to a process for the preparation of bisphenol A, in which the color is stable at high temperatures and does not color. 산 이온 교환 수지를 촉매로서 사용하고 알킬 메르캅탄을 조촉매로서 하여 페놀과 아세톤을 반응시키는 비스페놀 A의 제조방법에 있어서, 반응 온도가 60 내지 100℃이고 아세톤에 대한 페놀 몰비가 6 내지 13이고 알킬 메르캅탄에 대한 아세톤 몰비가 13 내지 25인 조건하에서 반응을 수행하고, 미반응된 아세톤, 물 부산물 및 조촉매인 알킬 메르캅탄을 증류시켜 제거하고, 과량의 페놀을 추가로 증류시켜 제거하여서 정석 원료중 유기황 화합물의 농도를 측정하여 200중량ppm 이하로 유지하는 것을 특징으로하는 비스페놀 A의 제조방법이다. A method for producing bisphenol A in which phenol and acetone are reacted using an acid ion exchange resin as a catalyst and alkyl mercaptan as a promoter, wherein the reaction temperature is 60 to 100 ° C., the phenol molar ratio to acetone is 6 to 13, and alkyl The reaction is carried out under the condition that the acetone molar ratio to mercaptan is 13 to 25, unreacted acetone, water by-product, and alkyl mercaptan, which is a promoter, are distilled off, and excess phenol is further distilled off to remove crystallization. A method for producing bisphenol A, wherein the concentration of the organosulfur compound is measured and maintained at 200 ppm by weight or less.

NEW INSOLUBLE CATALYSTS OF CARBODI-IMIDISATION OF HIGH MOLECULAR WEIGHT

ASYMMETRIC CARBON-CARBON-BOND-FORMING REACTIONS CATALYZED BY BIFUNCTIONAL CINCHONA ALKALOIDS

One aspect of the present invention relates to quinine-based and quinidine-based catalysts. In certain embodiments, the quinine-based and quinidine-based catalysts contain a hydroxy group at the 6' position. In certain embodiments, the quinine-based and quinidine-based catalysts contain an O-aryl group or an O-aroyl group at the CP position. In certain embodiments, the quinine-based and quinidine-based catalysts contain an optionally substituted O-diazene group or an optionally substituted O-benzoyl group at the CP position. In certain embodiments, the quinine-based and quinidine-based catalysts contain a thiourea at the CP position, hi certain embodiments, the quinine-based and quinidine-based catalysts contain an NH(=S)NH-aryl group at the CP position. Another aspect of the present invention relates to a method of preparing a chiral, non-racemic compound from a prochiral electron-deficient alkene or prochiral imine, comprising the step of: reacting a prochiral alkene or imine with a nucleophile ...

Method for producing silica gel-immobolized phosphonium salt catalysts

Disclosed herein is a method for producing silica gel-immobilized phosphonium salt catalysts including the steps of (a) reacting a silane compound with a silica gel in the presence of xylene, to obtain a catalyst precursor having a haloalkyl group or a haloaryl group, wherein the silane compound has a haloalkyl group or a haloaryl group, and a proportion of the silane compound is from 0.001 to 0.06 mol relative to 1 mol of the silica gel, and (b) reacting the catalyst precursor with a tertiary phosphine in xylene, to obtain a catalyst for synthesizing a cyclic carbonate, in which the silane compound is represented by formula (1), and the tertiary phosphine is represented by formula (2): X—R1—Si(OR2)3 (1) ...

Chiral cheating agent and chiral catlyst

Chiral chelating agents and chiral catalysts, which are formed from the chiral chelating agents and metal, are described. One chiral chelating agent has a general formula (1) as illustrated below: wherein R represents H, methyl, ethyl, a primary, secondary or tertiary straight, branched or cyclic alkyl group having 3-7 carbon atoms, a heterocyclic or aromatic group, an aromatic group substituted at the 2-, 3- or 4-position, an aromatic-like group, or a naphthyl or naphthyl-derived group, and n is an integer between 0 and 4.

Catalyst and a method for the trimerization of isocyanates

A method is described of preparing (poly)isocyanurate polyisocyanates by catalytic cyclotrimerization of isocyanates. A catalytic system is used which includes a cyclotrimerization catalyst based on a quatemary ammonium salt and imidazole as a cocatalyst.

CATALYSTS AND METHODS FOR POLYMER SYNTHESIS

The present invention provides oligomeric metal complexes having more than one metal center and methods of using such complexes. The provided metal complexes are useful in the copolymerization of carbon dioxide and epoxides.

CROSSLINKABLE COMPOSITION

An RMA crosslinkable composition for making thick coating layers having at least one crosslinkable component comprising reactive components A and B each including at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (C—H) in activated methylene or methine groups, and the at least 2 reactive groups of component B are activated unsaturated groups (C═C), to achieve crosslinking by Real Michael Addition reaction, the composition further including a base catalyst (C), an X—H group containing component (D) that is also a Michael addition donor reactable with component B under the action of catalyst C, wherein X is C, N, P, O or S and a sag control component (E). A crosslikable composition is also disclosed for preparing thick coating layers having a dry thickness of at least 70 mu having a surface appearance and hardness of the resulting cured composition.

Production method for 2-alkenylamine compound

Provided is a method for producing a 2-alkenylamine compound efficiently and at low cost, using a primary or secondary amine compound and a 2-alkenyl compound as the starting materials therefor. The 2-alkenylamine compound is produced by adding Bronsted acid when 2-alkenylating by reacting the primary or secondary amine compound with the 2-alkenyl compound, and 2-alkenylating in the presence of a catalyst comprising a complexing agent and a transition metal precursor stabilized by a monovalent anionic five-membered conjugated diene.

Аsуmmеtriс rеасtiоn саtаlуst аnd mеthоd fоr prеpаring оptiсаllу асtivе соmpоund using thе sаmе

Аn аsуmmеtriс rеасtiоn саtаlуst is оbtаinеd bу miхing а pеntаvаlеnt niоbium соmpоund аnd аn оptiсаllу асtivе triоl оr tеtrаоl hаving а binаphthоl struсturе оf R оr S соnfigurаtiоn, аnd thе triоl is rеprеsеntеd bу thе fоllоwing fоrmulа: (whеrеin, Y is divаlеnt hуdrосаrbоn аnd R1 is а hуdrоgеn аtоm, а hаlоgеn аtоm, а trifluоrоmеthуl grоup, оr аn аlkуl grоup оr аlkоху grоup hаving аt mоst 4 саrbоns).

Аsуmmеtriс rеасtiоn саtаlуst аnd mеthоd fоr prеpаring оptiсаllу асtivе соmpоund using thе sаmе

Аn аsуmmеtriс rеасtiоn саtаlуst is оbtаinеd bу miхing а pеntаvаlеnt niоbium соmpоund аnd аn оptiсаllу асtivе triоl оr tеtrаоl hаving а binаphthоl struсturе оf R оr S соnfigurаtiоn, аnd thе triоl is rеprеsеntеd bу thе fоllоwing fоrmulа: (whеrеin, Y is divаlеnt hуdrосаrbоn аnd R1 is а hуdrоgеn аtоm, а hаlоgеn аtоm, а trifluоrоmеthуl grоup, оr аn аlkуl grоup оr аlkоху grоup hаving аt mоst 4 саrbоns).

METHOD FOR PRODUCING PHOSPHORUS-CONTAINING -AMINO ACID AND PRODUCTION INTERMEDIATE THEREOF

A method for efficiently producing L-2-amino-4-(hydroxymethylphosphinyl)-butanoic acid, useful as a herbicide, by a catalytic asymmetric synthesis reaction with a high asymmetric yield. The method comprises a step wherein a compound represented by the below formula (1) and a benzylamine are reacted in the presence of dehydrating agent, then the resulting mass is reacted with hydrogen cyanide in the presence of an asymmetric catalyst, followed by acid hydrolysis, further followed by elimination of a protective group. [chemical formula 1] (1) (where, R1 represents a C1-4 alkyl group.) ...

Chiral diphosphorus compounds and their transition metal complexes

Chiral diphosphorus compounds (I) and their complexes with boranes are new. - Chiral diphosphorus compounds of formula (I) and their complexes with boranes are new. - asterisk 1- asterisk 3 = stereogenic C atom in R- or S- configuration; - R5 = alkyl, arylalkyl or aryl; either - R1-R4 = R5 or 4-16C heterocyclic group; or - R1+R2 and/or R3+R4 = alkylene; - R6 = R5 or alkoxy; and - n = 0-2. - Independent claims are also included for the following: - (1) phosphorus-containing cyclopentanol compounds of formula (IV); - (2) phosphorus containing cyclopentane derivatives of formula (V) and (VI); - (3) phosphorus containing cyclopentanol compounds of formula (VII) and their complexes with borane; - (4) sulfur-containing cyclopentanol compounds of formula (IX); - (5) the preparations of (I), (IV), (V), (VI), (VII) and (IX); - (6) cyclopentanol compounds of formula (II); - (7) transition metal complexes (C1) comprising (I); - (8) catalysts (C2) comprising (C1); and - (9) a method for preparing stereoisomerically ...

СПОСОБ АСИММЕТРИЧЕСКОГО ГИДРОСИЛИЛИРОВАНИЯ КЕТОНОВ

... 1. Способ превращения прохирального субстрата в хиральный продукт с помощью асимметрического гидросилилирования в присутствии катализатора, включающего переходный металл, связанный с соединением формулы (1): в которой R обозначает необязательно замещенный алкил, циклоалкил, арил или гетероарил; R' обозначает алкил или арил; и R" обозначает водород, галоген, необязательно замещенный алкил, гидроксил, аминогруппу, алкенил; или с его энантиомером; или со смесью его энантиомеров. 2. Способ по п.1, в котором R обозначает фенил, R' обозначает метил, и R" обозначает водород. 3. Способ по п.1, в котором R обозначает замещенный фенил, R' обозначает метил, и R" обозначает водород. 4. Способ по п.3, в котором R обозначает 3,5-(СН3)2С6Н3. 5. Способ по любому предыдущему пункту, в котором источник переходного металла выбран из группы, включающей медь, иридий, никель, палладий, платину, родий и рутений и их соли. 6. Способ по п.5, в котором переходным металлом является медь. 7. Способ по п.5, в котором ...

Manufacture of tetrahydro-ú+ú=ºaquinoline derivatives

The invention comprises 3,4-dihydroisoquinolines of the general formula in which n has the value 1, 2, or 3 and R represents hydrogen or an alkyl group, and a process described below, in which they are intermediates for the manufacture of 1,2,3,4-tetrahydroisoquinoline derivatives of general formula in which R and n have the significance stated above, and acid addition salts thereof. The process of manufacture consists of (1) condensing homoveratryl amine, for example, by heating, preferably with the aid of a condensing agent such as a cation-exchange resin in its acid form, with the correctly substituted b -phenylpropionic acid to give the correspondingly substituted b -phenylpropionic acid homoveratryl amide; (2) cyclising the aforesaid amide, especially with the aid of an acidic agent such as phosphorus oxychloride or a mineral acid, to give the 3,4-dihydroisoquinoline derivative of the first general formula above; (3) reducing the aforesaid ...

Peroxy-acetals and peroxy-ketals

Compounds of the formula wherein R1 is hydrogen, an alkyl, phenylcycloalkyl or cycloalkyl radical, which may be halogen-substituted, containing up to 12 carbon atoms, or an aryl radical, which may be alkyl- or halogen-substituted, containing up to 10 carbon atoms; R2 is an alkyl or cycloalkyl radical, which may be halogen-substituted, containing up to 10 carbon atoms, or R1 and R2 taken together with the central carbon atom may form a cycloaliphatic ring; R3 is an alkyl, cycloalkyl, aryl or aralkyl group which may be alkyl- or halogen-substituted containing up to 10 carbon atoms; R4 is an alkyl or a tert.-aralkyl radical, which may be alkyl- or halogen-substituted, containing up to 10 carbon atoms, or the grouping and R2 may also be a radical of formula wherein R5 is an alkylene, cycloalkylene, alkenylene, alkinylene or arylene radical containing up to 10 carbon atoms, and R4, only when R2 is not a radical of the above Formula ...

PREPARATION OF TERTIARY AMINES AND A CATALYST FOR USE THEREIN

PROCEDURE FOR CYANIERUNG OF ALDEHYDES

BY ISOCYANATE OF MODIFICATIONS OF BLOCKING SULFONSAEUREESTER AS NETWORKING CATALYST.

PROCEDURE FOR THE PRODUCTION OF AN ASYMMETRICAL CONNECTION USING A METAL COMPLEX

A novel catalytic formulation and its preparation

LIGANDS AND ASYMMETRIC CATALYSTS MADE BY USING THE SAME

Ligands represented by the general formula (1) (wherein R1, R2 and R3 are each a substituent on the aromatic ring; X is P or As; and n is 1 to 3). Asymmetric catalysts composed of metals and these ligands coordinating thereto in the catechol moiety are useful in the preparation of siloxynitriles.

ANTIFUNGAL COMPOUND PROCESS

The present invention relates to a process for preparing a compound of 5 or 5*, or a mixture thereof, that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compounds 7, 7* and 11, 11* and substituted derivatives thereof.

LOW PRESSURE CATALYTIC ETHYNYLATION PROCESS

PROCESS FOR THE PRODUCTION OF PAPER AND BOARD

The present invention relates to a process for the production of paper and board which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibres; and (c) dewatering the obtained suspension. The present invention also relates to a process for the production of a filler composition which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into a storage tank.

METHOD OF PREPARATION OF 2-METHYl-3-HYDROXYMETHYL-PENTENE (1) - ONE (4)

ETHYNYLATION CATALYST

NOVEL IMINES WITH TUNABLE NUCLEOPHILICITY AND STERIC PROPERTIES THROUGH METAL COORDINATION: APPLICATIONS AS LIGANDS AND METALLOORGANOCATALYSTS

The invention describes phospho-amino pincer-type ligands, metal complexes thereof, and catalytic methods comprising such metal complexes for conversion of carbon dioxide to methanol, conversion of aldehydes into alcohols, conversion of aldehydes in the presence of a trifluoromethylation agent into trifluorinated secondary alcohols, cycloaddition of carbon dioxide to an epoxide to provide cyclic carbonates or preparation of an amide from the combination of an alcohol and an amine. 2. The composition of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare each a alkyl claim 1 , each Z is CH and Ris a hydrogen atom.3. The composition of claim 2 , wherein R claim 2 , R claim 2 , R claim 2 , and Rare each a Calkyl.4. The composition of claim 2 , wherein Ris a methyl group or a hydrogen.5. The composition of claim 1 , wherein X is a hydride.6. The composition of claim 1 , wherein X is a halide.7. The composition of claim 1 , wherein the base is an organic base.8. The composition of claim 7 , wherein the organic base is an amine or an alkoxide.9. The composition of claim 8 , wherein the amine is an alkylamine comprising NRRR claim 8 , wherein R claim 8 , R claim 8 , and Rare each independently a hydrogen atom claim 8 , alkyl claim 8 , aryl claim 8 , aralkyl claim 8 , or a substituted version of any one of these groups claim 8 , wherein one or more of R claim 8 , R claim 8 , and Rcan form a ring or an aromatic amine.10. The composition of claim 9 , wherein the aromatic amine is pyridine. This International Application claims priority to U.S. Provisional Patent Application Ser. No. 62/049,022, filed Sep. 11, 2014, entitled “Novel Imines with tunable nucleophilicity and steric properties through metal coordination: Applications as ligands and Metalloorganocatalysts”, the contents of which are incorporated herein in their entirety for all purposes.The present invention relates generally to the field of chemistry and catalysis. More particularly, it relates to ...

METHOD FOR PRODUCING CATALYST FOR CYCLIC CARBONATE SYNTHESIS

A method for easily producing a heterogeneous catalyst having excellent catalytic activity at a low cost is provided. The heterogeneous catalyst is used for the purpose of synthesizing a cyclic carbonate by reacting an epoxide and carbon dioxide. A catalyst obtained by this production method and a method for synthesizing a cyclic carbonate with use of this catalyst are also provided. 1. A method for producing a catalyst for cyclic carbonate synthesis , the method comprising:(a) obtaining a catalyst precursor comprising a haloalkyl group or a haloaryl group by reacting a silane compound comprising the haloalkyl group or the haloaryl group with a silica gel having an amount of adsorbed water of 1% by mass or less, and(b) reacting the catalyst precursor with a tertiary phosphine to obtain the catalyst for cyclic carbonate synthesis,wherein a molar ratio of a halogen content to a phosphorus content [halogen]/[phosphorus] is from 0.8 to 1.6.2. The method according to claim 1 , wherein the obtaining (a) and the reacting (b) are carried out in a hydrocarbon solvent.3. The method according to claim 1 , wherein the halogen content in the catalyst for cyclic carbonate synthesis is from 0.25 to 0.8 mmol per 1 g of the catalyst.4. The method according to claim 1 , wherein the halogen content in the catalyst precursor is 1.0 mmol or less per 1 g of the catalyst precursor.5. The method according to claim 1 , wherein the amount of adsorbed water of the silica gel used in the obtaining (a) is from 0.001 to 0.9% by mass.6. A catalyst claim 1 , obtained by the method according to claim 1 ,wherein the catalyst is used for synthesizing a cyclic carbonate by reacting an epoxides with carbon dioxide.7. A method for synthesizing a cyclic carbonate claim 1 , the method comprising:{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, 'reacting an epoxide with carbon dioxide in the presence of the catalyst according to .'}8. A method for synthesizing a cyclic carbonate claim 1 , the method ...

METHOD FOR PRODUCING CATALYST FOR CYCLIC CARBONATE SYNTHESIS

The present invention provides a method for easily and inexpensively producing a heterogeneous catalyst used to synthesize a cyclic carbonate by reacting an epoxide with carbon dioxide and having excellent catalyst activity; a catalyst obtained using said manufacturing method; and a method for synthesizing a cyclic carbonate using said catalyst. 1. A method for producing a catalyst used to synthesize a cyclic carbonate by reacting an epoxide with carbon dioxide , comprising (a) and (b):(a) obtaining a catalyst precursor having a haloalkyl group or a haloaryl group by reacting a silane compound with a silica gel in the presence of xylene, wherein the silane compound having has a haloalkyl group or a haloaryl group, and(b) obtaining a catalyst for synthesizing a cyclic carbonate by reacting the catalyst precursor obtained in (a) with a tertiary phosphine.2. The method according to claim 1 , wherein the amount of the silane compound having a haloalkyl group or an haloaryl group ranges from 0.01 to 0.1 mol per 1 mol of silica gel.3. The method according to claim 1 , wherein the reaction time in (a) ranges from 1 to 30 hours.4. The method according to claim 1 , wherein the reaction temperature in (a) ranges from 50 to 160° C.5. The method according to claim 1 , wherein (b) is carried out in a hydrocarbon solvent.6. The method according to claim 5 , wherein the hydrocarbon solvent is xylene.7. The method according to claim 1 , wherein the silica gel used in (a) contains an amount of adsorbed water of 1% by mass or less.8. A catalyst obtained by the method according to .9. A method for synthesizing a cyclic carbonate by reacting an epoxide with carbon dioxide in the presence of the catalyst according to .10. The method according to claim 9 , wherein the epoxide is one or more members selected from the group consisting of ethylene oxide and propylene oxide. The present invention relates to a method for producing a catalyst used to synthesize a cyclic carbonate, a catalyst ...

Method for producing cyclic carbonate

Provided is a method for producing a cyclic carbonate obtained by reacting epoxide and carbon dioxide, the method being capable of efficiently producing a cyclic carbonate at a high conversion rate and a high yield, in which degradation of the catalyst over time is suppressed and catalytic activity hardly decreases. A method for producing a cyclic carbonate by reacting epoxide and carbon dioxide in the presence of a quaternary onium salt selected from the group consisting of a quaternary ammonium salt having a halogenated anion as a counter ion and a quaternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst obtained by immobilizing the quaternary onium salt onto a carrier, wherein an organohalogen compound containing at least one halogen atom in one molecule is added to the reaction system.

CROSSLINKABLE COMPOSITION CROSS-LINKABLE BY REAL MICHAEL ADDITION REACTION AND RESINS FOR USE IN SAID COMPOSITION

An RMA crosslinkable composition having at least one crosslinkable component including reactive components A and B each including at least 2 reactive groups, the at least 2 reactive groups of component A being acidic protons (C—H) in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C═C) and a base catalyst (C) which reactive components A and B crosslink by Real Michael Addition (RMA) reaction under action of the base catalyst, characterised in that the at least one crosslinkable component including reactive components A and B in the composition have a total hydroxy number of less than 60, preferably less than 40 and more preferably less than 20 mg KOH/g solids. Further, specific resins A and B having a low hydroxy number for use in RMA cross-linkable compositions and a process for the manufacture thereof. 1) An RMA crosslinkable composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups , wherein the at least 2 reactive groups of component A are C—H acidic protons in activated methylene or methine groups , and the at least 2 reactive groups of component B are C═C activated unsaturated groups and a base catalyst C , which reactive components A and B crosslink by Real Michael Addition reaction under action of the base catalyst , wherein the at least one crosslinkable component comprising reactive components A and B in the composition has a total hydroxy number of less than 60 mg KOH/g solids.2) The RMA crosslinkable composition according to claim 1 , wherein the at least one crosslinkable component comprising reactive components A and B in the composition has a total hydroxy number less than 20 mg KOH/g solids.3) The RMA crosslinkable composition according to claim 1 , wherein the catalyst C is a carbonate salt according to formula XROCO claim 1 , wherein X is a non-acidic cation claim 1 , and R is hydrogen or a ...

METHOD FOR CONTINUOUSLY PRODUCING CYCLIC CARBONATE

Provided is a method for continuously producing a cyclic carbonate, by which generation of a glycol in a reaction for synthesizing a cyclic carbonate is suppressed, and a cyclic carbonate having a high purity can be efficiently obtained even by simple purification. 1. A method for continuously producing a cyclic carbonate , the method comprising:filling a catalyst in a fixed-bed tube reactor,contacting a pre-treatment liquid comprising a sacrificial cyclic carbonate with the catalyst to form a glycol,removing the glycol from the fixed-bed tube reactor, andcontinuously feeding carbon dioxide and an epoxide to the fixed-bed tube reactor to thereby bring the carbon dioxide and the epoxide into contact with the catalyst to form a reaction liquid comprising the cyclic carbonate, while continuously withdrawing the reaction liquid from the fixed-bed tube reactor.2. The method according to claim 1 , wherein the pre-treatment liquid and the catalyst are brought into contact until a total amount of the glycol in an effluent from the fixed-bed tube reactor is 100 ppm or lower.3. The method according to claim 1 , wherein the pre-treatment liquid and the catalyst are brought into contact at a temperature in a range of 20° C. to 140° C.4. The method according to claim 1 , further comprising feeding a part of the reaction liquid that has been withdrawn to the fixed-bed tube reactor.5. The method according to claim 1 , wherein the catalyst is a solid catalyst which is at least one quaternary organic onium salt selected from the group consisting of a quaternary organic ammonium salt comprising a halide anion as a counterion and a quaternary organic phosphonium salt comprising a halide anion as a counterion claim 1 , where the solid catalyst is immobilized on a support.6. The method according to claim 5 , wherein the quaternary organic onium salt is a quaternary organic phosphonium salt comprising a bromine ion as a counterion.7. The method according to claim 5 , wherein the support ...

Antifungal Compound Process

The present invention relates to a process for preparing a compound of 5 or 5*, or a mixture thereof, that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compounds 7, 7* and 11, 11* and substituted derivatives thereof. 2. The process of claim 1 , further comprising enriching the enantiomeric purity of an enantiomeric compound mixture of Formula 1 and 1* claim 1 , comprising: 'the suitable solvent or solvent mixture is selected from acetonitrile, isopropanol, ethanol, water, methanol, or combinations thereof;', 'crystallizing said enantiomeric compound mixture with a chiral acid in a suitable solvent or solvent mixture, wherein(ii) isolating the enantio-enriched chiral salt mixture; and(iii) free-basing the enantio-enriched chiral salt mixture to provide the enantio-enriched compound mixture.3. The process of claim 2 , further comprising reslurrying the enantio-enriched chiral salt mixture in a slurrying solvent or slurrying solvent mixture.4. (canceled)5. The process of claim 3 , wherein the slurrying solvent or slurrying solvent mixture is a) acetonitrile or b) a mixture of acetonitrile and methanol.6. The process of claim 4 , wherein the mixture of acetonitrile and methanol comprises 80-90% acetonitrile and 10-20% methanol.7. The process of claim 5 , wherein the mixture of acetonitrile and methanol comprises 80-90% acetonitrile and 10-20% methanol.8. The process of claim 2 , wherein the chiral acid is selected from the group consisting of tartaric acid claim 2 , di-benzoyltartaric acid claim 2 , malic acid claim 2 , camphoric acid claim 2 , camphorsulfonic acid claim 2 , ascorbic acid claim 2 , and di-p-toluoyltartaric acid.9. (canceled)11. The process of claim 10 , wherein the mole percent of the chiral catalyst is selected from about 0.5-50 claim 10 , about 0.5-25 claim 10 , about 1-10 claim 10 , and is about 5.1214-. (canceled)15. The process of claim 1 , wherein the number of equivalents of ...

METHOD OF PRODUCING N,N-DISUBSTITUTED AMIDE AND CATALYST FOR PRODUCING N,N-DISUBSTITUTED AMIDE

A method of producing an N,N-disubstituted amide of the present invention is a method of reacting a nitrile with an alcohol in the presence of a catalyst, wherein the nitrile is a compound represented by RCN (Rrepresents an alkyl group having 10 or less carbon atoms or an aryl group having 10 or less carbon atoms), wherein the alcohol is a compound represented by ROH (Rrepresents an alkyl group having 10 or less carbon atoms), wherein the catalyst is a metal salt represented by MXn (M represents a metal cation having an oxidation number of n, X represents a monovalent anion including a substituted sulfonyl group represented by —S(═O)—R(Rrepresents a hydrocarbon group having 10 or less carbon atoms or a group in which some or all of hydrogen atoms in the hydrocarbon group are substituted with fluorine atoms), and n represents an integer of 1 to 4), a substituent bonded to a carbon atom in a carbonyl group of the N,N-disubstituted amide is R, and two substituents bonded to nitrogen atoms in an amide group are both R. 1. A method of producing an N ,N-disubstituted amide by reacting a nitrile with an alcohol in the presence of a catalyst , {'br': None, 'sup': '1', 'RCN'}, 'wherein the nitrile is a compound represented by'}{'sup': '1', '(in the formula, Rrepresents an alkyl group having 10 or less carbon atoms or an aryl group having 10 or less carbon atoms),'} {'br': None, 'sup': '2', 'ROH'}, 'wherein the alcohol is a compound represented by'}{'sup': '2', '(in the formula, Rrepresents an alkyl group having 10 or less carbon atoms),'} {'br': None, 'MXn'}, 'wherein the catalyst includes a metal salt represented by'}{'sub': '2', 'sup': 3', '3, '(in the formula, M represents a metal cation having an oxidation number of n, X represents a monovalent anion including at least one substituted sulfonyl group represented by —S(═O)—R(in the formula, Rrepresents a hydrocarbon group having 10 or less carbon atoms or a group in which some or all of hydrogen atoms in the hydrocarbon ...

Metal-conjugated microporous polymers

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 ...

Antifungal compound process

The present invention relates to a process for preparing a compound of 5 or 5*, or a mixture thereof, and/or a compound of 14 or 14*, or a mixture thereof, that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compounds 7, 7* and 11, 11* and substituted derivatives thereof.

Catalyst, Production Method Therefor, and Method for Producing Optically Active Anti-1, 2-Nitroalkanol Compound

A catalyst including: neodymium; sodium; and a ligand, which is a compound expressed by Structural Formula (1) below, wherein the neodymium and the ligand form a complex at a molar ratio of 1:2 (neodymium:ligand): 2. A method for producing an optically active anti-1 ,2-nitroalkanol compound , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'allowing an aldehyde compound and a nitroalkane compound having 2 or more carbon atoms to react in the presence of the catalyst according to .'}3. The method for producing an optically active anti-1 claim 2 ,2-nitroalkanol compound according to claim 2 , wherein the nitroalkane compound having 2 or more carbon atoms is nitroethane.5. The method for producing a catalyst according to claim 4 , wherein the neodymium halide is neodymium chloride.6. The method for producing a catalyst according to claim 4 , wherein the sodium alkoxide is sodium alkoxide having 1 to 6 carbon atoms.7. The method for producing a catalyst according to claim 4 , wherein a nitroalkane compound is further mixed. The present invention relates to a catalyst useful in anti-selective catalytic asymmetric nitroaldol reaction, a method for producing the same, and a method for producing an optically active anti-1,2-nitroalkanol compound using the catalyst.Optically active anti-1,2-nitroalkanol compounds are useful as precursors of optically active anti-1,2-aminoalcohol compounds.Optically active anti-1,2-aminoalcohol compounds are generally used as chiral building blocks having very high utility in organic synthetic chemistry, especially medicinal synthetic chemistry. For example, the optically active anti-1,2-aminoalcohol compounds are contained as basic units in pharmaceutical products such as β-agonist, many naturally-occurring biologically active compounds, and the like. Use of optically active anti-1,2-aminoalcohol compounds as starting materials or reaction reagents makes it possible to efficiently and inexpensively produce compounds ...

METHODS USED IN MICRO-CHANNEL REACTORS WITH A TIED CATALYST AND A BOUND CATALYST OR BOUND CHIRAL TOOLS

Catalyst for alkylene oxide addition reaction and application thereof

The present invention provides a catalyst for an addition reaction of alkylene oxide, the catalyst comprises a nanocomposite ion-exchange resin having a structural formula of P-Im+-M−, wherein P is a nanocomposite resin matrix, Im+ is a cation derived from 5-6 membered heterocycle containing at least one nitrogen atom such as imidazolium cation, pyrazolium cation, pyrrolidinium cation, piperidinium cation, piperazinium cation, pyrimidinium cation, pyrazinium cation, pyridazinium cation, triazinium cation, and M− is an anion. The catalyst of the present invention can be used in the addition reaction of alkylene oxide and carbon dioxide. The catalyst has high wear resistance, high swelling resistance, and high activity. The products after the reaction are easy to separate, and the catalyst can be used continuously many times.

Microreactor

The invention is directed to a porous support for conducting one or more chemical reactions comprising a polymeric or silica porous monolith functionalised with an agent. In one embodiment, the agent is a catalytic or scavenging agent. The invention also relates to microreactors comprising such porous supports for use in conducting chemical reactions including organic chemical reactions, metal scavenging, diagnostic reactions or catalysis reactions. The novel porous supports described herein find particular application in small scale high throughput screening.

Transition metal complexes for enantioselective catalysis of carbon-carbon, carbon-heteroatom, and carbon-hydrogen bond forming reactions

In some embodiments, the present disclosure pertains to a compound, comprising a transition metal complex having the formula Φ-[Μ (x,y)-L 1 ( w,v)-L 2 (t,u)-L 3 ] p+ An - m Z - p_m . In an embodiment of the present disclosure Φ may be A. In another embodiment Φ may be Δ. In some embodiments of the present disclosure, M is a transition metal. In a related embodiment, p is an integer corresponding to the oxidation state of M. In some embodiments of the present disclosure, each of x, y, w, v, t, and u independently comprise R. In other embodiments, each of x, y, w, v, t, and u independently comprise S. In an embodiment of the present disclosure, each of L 1, L 2 , and L 3 independently is a ligand comprising a substituted diamine. In some embodiments, An" comprises a lipophilic anion, where m is from 1 to 3, and where Z - comprises an optional second anion.

Main-group metal based asymmetric catalysts and applications thereof

The present invention relates to a method and catalysts for the stereoselective addition of a nucleophile to a reactive π-bond of a substrate. The chiral, non-racemic catalysts of the present invention constitute the first examples of catalysts for nucleophilic additions that comprise a main-group metal and a tri- or tetra-dentate ligand.

Production method for 2-alkenylamine compound

1급 또는 2급 아민 화합물 및 2-알케닐 화합물을 출발 원료로 하여 효율적이고 낮은 비용으로 대응하는 2-알케닐아민 화합물을 제조하는 방법을 제공한다. 1급 또는 2급 아민 화합물을 2-알케닐 화합물과 반응시켜서 2-알케닐화할 때에 브론스테드산을 첨가하고, 착화제와, 1가 음이온성 5원환 공역 디엔에 의해 안정화된 전이금속 전구체로 이루어지는 촉매의 존재 하에서 2-알케닐화함으로써 2-알케닐아민 화합물을 제조한다. There is provided a method for producing a corresponding 2-alkenylamine compound by using a primary or secondary amine compound and a 2-alkenyl compound as starting materials in an efficient and low cost manner. Bronsted acid is added when the primary or secondary amine compound is reacted with a 2-alkenyl compound to make 2-alkenyl, and a transition metal precursor stabilized with a complexing agent and a monovalent anionic 5-membered ring conjugated diene 2-alkenylation in the presence of a catalyst to produce a 2-alkenylamine compound.

Tethered catalyst processes in microchannel reactors and systems containing a tethered catalyst or tethered chiral auxiliary

The invention provides systems and methods for conducting reactions in which a reactant contacts a tethered catalyst and/or tethered chiral auxiliary in a microchannel and is converted to product.

用于环氧烷烃和二氧化碳制备碳酸亚烷基酯的方法

本发明涉及一种用于环氧烷烃和二氧化碳制备碳酸亚烷基酯的方法。其技术方案是：以环氧烷烃和二氧化碳为原料，反应原料与催化剂接触生成碳酸亚烷基酯；所述的催化剂为含咪唑基团、水杨酸基团与锌的多基络合化合物催化体系，所述的锌、含咪唑基团、水杨酸基团的摩尔比为5:1‑50:1‑50。有益效果是：本方法采用了含咪唑基团、水杨酸基团与锌的多基络合化合物催化体系，环氧乙烷的转化率高，碳酸乙烯酯的选择性高，取得了较好的技术效果，该催化剂体系制备过程简单，成本低，活性良好，可推广用于碳酸亚烷基酯的工业生产中。

新型催化剂及其在聚氨酯制备中的用途

本发明涉及新型催化剂及其制备，以及还涉及其在生产多异氰酸酯加聚产物中优选的用途。

Process for the preparation of spherically shaped microcomposites

A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of inorganic oxide, wherein the weight percentage of the perfluorinated ion-exchange polymer in the microcomposite is from about 0.1 to about 90 percent, and wherein the size of the pores in the microcomposite is about 0.5 nm to about 75 nm; said process comprising the steps of: (a) combining a water-miscible inorganic oxide network precursor system, a water-miscible liquid composition comprising a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups, and an organic liquid to form a two phase liquid system; (b) agitating the two phase liquid system sufficiently to sustain a dispersion of the water-miscible phase in the shape of spheres in the organic phase; (c) allowing the inorganic oxide network precursor system to form a network of inorganic oxide to yield at least one spherically shaped porous microcomposite having the above-described properties; and (d) recovering the at least one spherically shaped porous microcomposite.

Microencapsulated catalyst methods of preparation and method of use thereof

A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.

2-알케닐아민 화합물의 제조 방법

1급 또는 2급 아민 화합물 및 2-알케닐 화합물을 출발 원료로 하여 효율적이고 낮은 비용으로 대응하는 2-알케닐아민 화합물을 제조하는 방법을 제공한다. 1급 또는 2급 아민 화합물을 2-알케닐 화합물과 반응시켜서 2-알케닐화할 때에 브론스테드산을 첨가하고, 착화제와, 1가 음이온성 5원환 공역 디엔에 의해 안정화된 전이금속 전구체로 이루어지는 촉매의 존재 하에서 2-알케닐화함으로써 2-알케닐아민 화합물을 제조한다.

Catalytic formulation and its preparation

A hetergeneous catalyst includes a solid support having deposited thereon a catalyticaly active material, which is substantially insoluble in organic and aqueous liquid media. The insoluble material is constructed from secondary building blocks derived from suitable organometallic active components, and the organometallic active component may be molecularly modified so as to introduce two or more anionic functional groups. These molecularly modified organometallic components, upon interaction with salts of Ca 2+ , Sr 2+ and Ba 2+ , provde the practically insoluble solid material. Methods of formuatling the organometallic active materials on a solid support as a solid catalyst are also provided. The catalysts are capable of catalyzing diverse reactions in polar and nonpolar reaction media, and the overall integrity of the formulation as a solid material in a liquid phase provides easy catalyst and product separation.

锂配合物在腈的硼氢化反应中的应用

本发明涉及一种锂化合物及其在有机合成领域中的应用，具体涉及一种锂配合物在腈的硼氢化反应中的应用。与β‑二亚胺阴离子配体在有机金属化学上的研究相比，β‑酮亚胺阴离子配体的应用研究却较少，关于双负离子β‑酮亚胺配体的化合物(配合物)及其应用与硼氢化反应迄今为止没有报道。本发明将该化合物应用于腈的硼氢化反应中，可以实现腈和频哪醇硼烷的高效还原。

Preparation of tertiary amine

Acid catalyzed process

This invention provides an improved process for the conversion of reactant into a reaction product, in the presence of a solid acid catalyst comprising sulfonic acid groups covalently bonded to a polymeric chain, wherein the improvement comprises increasing the rate of conversion, on an equivalent sulfonic acid basis, by providing, as said polymeric chain a compound represented by the general formula: M(O.sub.3 ZO.sub.x R).sub.n wherein M is a tetravalent metal ion; Z is a pentavalent atom, selected from the group consisting of elements of Group V of the Periodic Table of the Elements having an atomic weight greater than 30; x varies from 0 to 1; R is selected from the group consisting of organo radicals and mixtures of hydrogen radicals and organo radicals; and n varies from 1 to 2; provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom.

Trimerization-catalysts, method for their preparation and their use in producing of isocyanate groups containing polyisocyanates

Trimerisation catalysts, suitable for heterogeneous catalysis, for organic isocyanates, comprising quaternary ammonium or phosphonium fluorides adsorbed onto selected support materials, a process for the preparation of these catalysts by preparing an alcoholic solution of a quaternary ammonium or phosphonium salt and adsorbing the resultant catalyst solution onto the support material, and the use of the catalysts in the preparation of polyisocyanates containing isocyanurate groups.

酸催化法

本发明提供一种在有固体酸催化剂存在下，使反应物转化成反应产品的方法，其中改进方法包括提供以通式M(O 3 ZOxR) n 表示的化合物作为所述聚合物链，以当量磺酸为基准，提高转化率。式中，M是四价金属离子；Z是五价原子，选自由元素周期表V族组成的元素，原子量大于30；X的变化为0～1；R选自一组有机基团和氢离子团与有机基团的混合物；n的变化为1～2；若n＝1时，R的末端是三或四氧五价原子。

Regular macroporous metal-organic framework single crystal and its preparation method

二(β‑二亚胺基)稀土胺化物在催化酮和硼烷硼氢化反应中的应用

本发明公开了二(β‑二亚胺基)稀土胺化物在催化酮与硼烷硼氢化反应中的应用，催化剂分子式为[2‑Me‑C 6 H 4 ‑NC(Me)CHC(Me)N‑C 6 H 4 ‑2‑Me] 2 LnN(SiMe 3 ) 2 ，Ln表示稀土金属，选自Nd，Pr中的一种，在硼烷与酮反应生成硼酸酯中作为催化剂，能在温和的条件下（室温），以极短的时间（8‑10分钟），极高的产率催化硼烷与酮发生加成反应，为首例采用稀土化合物催化该类反应。

Method for fixing carbon dioxide

本发明属于有机催化技术领域，具体公开了一种固定二氧化碳的方法，在60‑120℃条件下，采用式II所示的环氧化物和二氧化碳在式I所示的催化剂的催化下生成环状碳酸酯类化合物。采用该方法二氧化碳的转化率高，反应无金属残留，反应条件温和，催化剂更加容易制备，可广泛应用于工业生产。

Circuit for reducing glitch of electronic volume

(57)【要約】 【課題】 不斉イミノアルドール反応等の不斉有機合成 を高い反応性と選択で触媒的に行うことを可能とする。 【解決手段】 ジルコニウム（IV）を触媒の活性中心原 子とし、２分子の光学活性なビナフチル基と酸素原子を 介して結合している構造の不斉ジルコニウム触媒を提供 する。

Catalytic system for aldol reactions

The invention relates to a catalytic system for use in a process for the preparation, in a single step, of enones by an aldol condensation of a ketone, such as a gem-dimethyl cyclohexylethanone or gem-dimethyl cyclohexenylethanone derivative, with an aldehyde in the presence of a novel catalytic system and a co-ingredient, such as a carboxylic acid anhydride or an anhydrous salt, and without the pre-formation of an enolate. The catalytic system is a metal complex, such as a [(Cl) n (alkoxy) 4-n Ti] or [(Cl) n (alkoxy) 4-n Zr] complex where n is 1 to 3.

Titanium catalyst, organotitanium reaction reagent, production method thereof, and reaction method using them

Crosslinkable composition

Crosslinkable composition crosslinkable by real michael addition (rma) reaction

本发明涉及一种可交联组合物，其包括：具有至少2个活化亚甲基或次甲基中的酸性质子C-H（RMA供体基团）的组分A；以及具有至少2个活化不饱和基团（RMA受体基团）的组分B；以及催化剂体系C，其含有或能够产生能够活化组分A与B之间的RMA反应的碱性催化剂，特征在于该可交联组合物还包括含X-H基团的组分D，其也是在催化剂C的作用下可与组分B反应的迈克尔加成供体，其中X为N、P、O、S，或其中X是作为酸性甲基（CH3）的一部分的C。本发明进一步涉及组分D以及催化剂添加剂混合物在制造具有改善的表面外观的RMA可交联组合物中的用途。

Enantioselective method of nucleophilic addition reaction of enamide to imine and synthesis method of α-amino-γ-keto acid ester

Способ получения бумаги и картона

1. Способ получения бумаги и картона, причем способ включает:(a) введение одного или более наполнителей, одного или более анионных полисахаридов и одного или более катионных агентов в зону смешения с образованием композиции наполнителя, где(i) один или более наполнителей и один или более анионных полисахаридов смешиваются в зоне смешения с образованием предварительной смеси наполнителя и затем один или более катионных агентов вводятся в зону смешения с образованием композиции наполнителя, и/или(ii) один или более наполнителей и один или более анионных полисахаридов смешиваются в зоне предварительного смешения с образованием предварительной смеси наполнителя, и затем предварительная смесь наполнителя вводится в зону смешения,(b) введение с помощью насоса композиции наполнителя в водную суспензию, содержащую целлюлозные волокна; и(c) обезвоживание полученной суспензии.2. Способ по п. 1, который дополнительно содержит:(i) обеспечение толщины согласно техническим требованиям для получаемых бумаги или картона;(ii) измерение толщины получаемых бумаги или картона;(iii) сравнение измеренной толщины с толщиной согласно техническим требованиям с идентификацией любой разницы по толщине; и(iv) необязательное снижение разницы по толщине с обеспечением бумаги или картона, отвечающим техническим требованиям по толщине, регулированием дозы композиции наполнителя и поэтому регулированием содержания наполнителя в бумаге или картоне.3. Способ по п. 1, который содержит смешение одного или более наполнителей и одного или более анионных полисахаридов в зоне смешения с образованием предварительной смеси наполнителя и затем введен РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК D21H 17/25 (13) 2013 158 186 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013158186/05, 05.06.2012 (71) Заявитель(и): АКЦО НОБЕЛЬ КЕМИКАЛЗ ИНТЕРНЭШНЛ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 08.06.2011 EP 11169107.7; 08.06.2011 US 61/494,475 ( ...

Core-shell composite catalytic material and preparation method thereof

本发明提供一种核壳型复合催化材料及其制备方法，属于复合材料制备方法领域。所述核壳型复合催化材料的制备方法是，首先制备具有开放性金属中心作为路易斯酸的金属有机框架材料Cu 3 (BTC) 2 为“核”，再对其进行离子型多孔有机框架材料iPOF‑TB‑Br ‑ 包覆并提供溴阴离子位点。本发明的核壳型复合催化材料兼具Cu 3 (BTC) 2 和iPOF‑TB‑Br ‑ 两种材料的优势，可用于在无均相协同催化剂存在的条件下高效地催化CO 2 与环氧化合物反应，生成环状碳酸酯；本发明的核壳型复合催化材料制备方法简单易于操作、催化反应产率高、反应底物种类可扩展、催化性能重现性好。

A kind of schiff bases aluminum complex and its preparation method and application

本发明提供了一种席夫碱铝配合物及其制备方法和应用，本发明提供的席夫碱铝配合物具有式(I)结构，本发明提供配合物催化活性高，而且能够催化制备环状碳酸酯、聚酯、聚碳酸酯以及聚碳酸酯‑聚酯的反应，催化剂应用范围广，而且催化活性高，具有很好的工业应用前景。

Carboxyl functionalized pyrazole ionic liquid, synthesis method and method for catalytically synthesizing cyclic carbonate by using same

本发明涉及一种一种羧基功能化吡唑类离子液体，其特征在于，结构式如下所示： ，其中， n =1、2、3或4，R 1 =CH 3 或CH 2 CH 3 。本发明还公开了利用该离子液体催化合成环状碳酸酯的方法：以环氧化合物和CO 2 为原料，使用此类吡唑离子液体为催化剂，在1.0―3.5 MPa、60―120℃条件下反应1―24 h即得。本发明具有合成工艺简单、催化剂活性高、催化条件温和、绿色环保、不使用其他溶剂和助催化剂、催化剂不含金属等优点。

Catalytic system for aldol reactions

本发明涉及在新颖催化体系存在下，通过酮，如偕二甲基环己基乙酮或偕二甲基环己基乙酮衍生物，与醛的醇醛缩合，通过单一步骤制备烯酮而没有烯醇化物预形成的方法。该催化体系由金属配合物，如[(Cl) n (烷氧基) 4－n Ti]或[(Cl) n (烷氧基) 4－n Zr]配合物(n是1－3的整数)，和助组份开始如羧酸酐或无水盐组成。

Catalysts and methods for polymer synthesis

본 발명은 하나 초과의 금속 중심을 갖는 올리고머 금속 착물 및 그와 같은 착물을 사용하는 방법을 제공한다. 제공된 금속 착물은 이산화탄소 및 에폭사이드의 공중합에서 유용하다.

Salts of heterocyclic anions and their uses as ionic conductive materials

Perfluorinated amide salts and their use as ion-conducting substances

Method for producing catalyst for cyclic carbonate synthesis

에폭사이드와 이산화탄소를 반응시켜 고리형 카보네이트를 합성하기 위해서 사용되는 우수한 촉매 활성을 갖는 불균일계 촉매를, 간편하게 또한 저비용으로 제조하는 방법, 그 제조 방법으로 얻어진 촉매, 그 촉매를 사용하는 고리형 카보네이트의 합성 방법의 제공. 에폭사이드와 이산화탄소를 반응시켜 고리형 카보네이트를 합성하기 위해서 사용되는 촉매의 제조 방법으로서, 하기 공정 (a) 및 (b) 를 포함하는 제조 방법. (a) 할로알킬기 또는 할로아릴기를 갖는 실란 화합물과, 흡착 수분량 1 질량％ 이하의 실리카 겔을 반응시켜, 할로알킬기 또는 할로아릴기를 갖는 촉매 전구체를 얻는 공정 (b) 공정 (a) 에서 얻어진 촉매 전구체와 3 급 포스핀을 반응시켜, 할로겐 함유량과 인 함유량의 몰비 [할로겐/인] 가 0.8 ∼ 1.6 인 고리형 카보네이트 합성용 촉매를 얻는 공정 A method of preparing a heterogeneous catalyst having excellent catalytic activity used to synthesize a cyclic carbonate by reacting epoxide and carbon dioxide easily and at low cost, a catalyst obtained by the method, and a cyclic carbonate using the catalyst Provision of synthetic methods. A method for producing a catalyst used to synthesize a cyclic carbonate by reacting an epoxide with carbon dioxide, comprising the following steps (a) and (b). (a) A step of reacting a silane compound having a haloalkyl group or a haloaryl group with silica gel having an adsorbed moisture content of 1% by mass or less to obtain a catalyst precursor having a haloalkyl group or a haloaryl group (b) A step of reacting the catalyst precursor obtained in step (a) with tertiary phosphine to obtain a catalyst for synthesizing a cyclic carbonate having a molar ratio of halogen content and phosphorus content [halogen/phosphorus] of 0.8 to 1.6

Asymmetric aldol reaction method with chiral lead catalyst

Patent FR1549769A

Inorganic oxides comprising multiple surface-bound functional groups

Inorganic oxides, particularly silica or germania, having multiple different functional groups bonded to their surfaces are disclosed. They are prepared by a method using a thermally labile protecting group to introduce the functional group to the surface with the protecting group then being removed thermolysis. The resulting product is an inorganic oxide with multiple functional groups bonded to its surface. If the compound used to introduce the functional groups has an ordered array of functional groups, this ordered array will be reflected in the surface of the inorganic oxide after thermolysis. Metallic nanostructures may then be made using this inorganic oxide support.

Novel compositions and compounds comprising metal salts with sulfonyl attached to perhalogenated carbon forming Lewis acids, useful as catalysts for reaction of electrophilic cations

The use of salts of elements of valency mu (with mu = 3 or more) as catalysts , the co-anions comprising at least one and no more than ( mu -1) anions with a sulfonyl function attached to a perhalogenated atom, preferably perfluorinated and more preferably a perfluoromethylene group. Independent claims are also included for the catalytic compositions and compounds and their preparation, and reactants including the catalyst and an agent providing a carbocation.

Alcohol production

NEW INSOLUBLE HIGH MOLECULAR WEIGHT CARBODIMIDIZATION CATALYSTS

Malachite preparation

ABSTRACT OF THE DISCLOSURE Synthetic malachite of desirable particle size and distribution is coprecipitated with small amounts of uniformly dispersed bismuth. After nucleation, the crystals are grown at elevated temperatures. The malachite can be converted into a cuprous acetylide complex useful as an ethynylation catalyst.

Patent FR2299082B1

NOVEL CHIRAL COMPOUNDS DERIVED FROM A DIAMINE OR AN AMINOALCOOL, MONOSULFONYL AND CARBONYL CARRIERS OF A PYRROLIDINYL GROUP, THEIR PREPARATION AND THEIR APPLICATIONS IN ASYMMETRIC CATALYSIS.

Catalysts and methods for polymer synthesis

The present invention provides oligomeric metal complexes having more than one metal center and methods of using such complexes. The provided metal complexes are useful in the copolymerization of carbon dioxide and epoxides.

Method for synthesizing cyclic carbonate by catalyzing carbon dioxide with fluoroalcohol functionalized ionic liquid

本发明公开了一种氟醇功能化的离子液体催化二氧化碳合成环状碳酸酯的方法,该方法通过氨基化合物和甲醛、乙二醛、氢卤酸的咪唑成环反应，以及氨基化合物与卤代烷烃的季铵化反应来制备氟醇功能化的双功能离子液体，并以二氧化碳和不同的环氧化合物为原料，在反应压力为0.1～5MPa，反应温度为25～150℃，催化剂的用量为环氧化合物的0.1～10mol％，反应时间为1～10h，无溶剂条件下通过环加成反应制备相应的环状碳酸酯。本发明所采用的催化剂经济环保、制备方法简单高效、催化性能优异，可以在温和(或常温常压)、无金属、无溶剂条件下实现环状碳酸酯的快速、高选择性合成。

Transition metal complexes for enantioselective catalysis of carbon-carbon, carbon-heteroatom, and carbon-hydrogen bond forming reactions

In some embodiments, the present disclosure pertains to a compound, comprising a transition metal complex having the formula Φ-[M (x,y)-L1 (w,v)-L2 (t,u)-L3]p+An−mZ−p−m. In an embodiment of the present disclosure Φ may be Λ. In another embodiment Φ may be Δ. In some embodiments of the present disclosure, M is a transition metal. In a related embodiment, p is an integer corresponding to the oxidation state of M. In some embodiments of the present disclosure, each of x, y, w, v, t, and u independently comprise R. In other embodiments, each of x, y, w, v, t, and u independently comprise S. In an embodiment of the present disclosure, each of L1, L2, and L3 independently is a ligand comprising a substituted diamine. In some embodiments, An− comprises a lipophilic anion, where m is from 1 to 3, and where Z− comprises an optional second anion.

Method for preparing .alpha.-amino-.beta., .delta.-diol derivatives

A B S T R A C T Intermediate compounds (formula [III], [IV]) useful as starting material for amino acid derivatives which have renin inhibitory activity and are useful as remedies for hypertension are prepared stereoselectively at high yield, without requiring complicated process. In this method, by reaction of .alpha.-amino aldehyde deriva-tive [I] and compound [II] in the presence of BF3?OEt2, as shown in the following reaction formula, .alpha.-amino-.beta.-hydroxy-.delta.-ketone derivative [III] is prepared, and furthermore, by reducing it as required, compound [IV] is obtained. [I] [III] [IV] [II] (where R1 is a protective group of amino group, R2 is a lower alkyl group which may be branched, and R4 is a cyclohexyl group or phenyl group).

CATALYST SYSTEM FOR ALDOLREAKTIONS

Microencapsulated catalyst, and its production and use

A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.

Synthesis process using carbenes in aqueous medium and applied to biomolecules

Procédé de synthèse utilisant des carbènes en milieu aqueux et appliqué aux biomolécules La présente invention concerne un composé azolium de formule (I) et son utilisation comme précurseur de l'espèce catalytique active (carbène) pour des réactions de chimie-click dans l’eau. (I) Figure pour l'abrégé : Néant Synthesis process using carbenes in an aqueous medium and applied to biomolecules The present invention relates to an azolium compound of formula (I) and its use as a precursor of the active catalytic species (carbene) for click chemistry reactions in water . (I) Figure for abstract: None

Molecular recognition polymer capable of reconstructing recognition field of target molecule and method for producing the same

The manufacture method of metalloporphyrin coordination compound, its manufacture method and the carbon dioxide fixation catalyzer be made up of it and cyclic carbonate

本发明提供一种下述通式(1)所示的金属卟啉配位化合物。(式(1)中，M为金属。A 1 ～A 4 分别独立地为下述通式(2)所示的取代基。)(式(2)中，D为碳原子数1～20的2价有机基团。E + 为碳原子数3～60的季铵基或季鏻基。X为卤素原子。)由此，在用作二氧化碳固定化催化剂时，显示高催化活性，环境负荷小，而且可容易地合成。

Ligands and asymmetric catalysts made by using the same

A ligand expressed by a general formula (1) in claim 1, wherein R 1 , R 2 and R 3 denote substituting groups on aromatic rings, X is P or As, and n is 1 to 3.

Preparation of butynediol using bismuth modified spheroidal malachite

Spheroidal agglomerates of malachite crystals are prepared by bringing together solutions of a cupric salt, a bismuth salt and an alkali metal carbonate or bicarbonate to form a mixture containing amorphous hydrated copper carbonate, and then holding the mixture, without agitation, at a temperature of less than about 55° C.

Catalyst and process for the cyanation of aldehydes

A vanadium catalyst and a process for cyanating an aldehyde are provided. The vanadium catalyst comprises a Vanadium(V) salen complex. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si-CN bond or a C-(C=O)-CN moiety; and ii) a substrate susceptible to nucleophilic attack not comprising a halogen leaving group; in the presence of a chiral vanadium catalyst. The cyanide source is preferably an alkali metal cyanide and the substrate susceptible to nucleophilic attack not comprising a halogen leaving group is a carboxylic anhydride.

AIR-ACTIVATED ORGANO CINNAMENTS FOR POLYURETHANE SYNTHESIS

Preparation of alpha-chloromethyl chloroformate

Preparation method and application of ionic liquid/MOF composite catalyst

本发明公开了一种离子液体/MOF复合催化剂的制备方法及应用。以双氨基功能化离子液体和二醛为原料，以金属有机框架材料为载体制备得到。材料制备方法简单，离子液体用量少，催化性能优异，能够在常压、低温、无需助催化剂等温和条件下高效催化转化CO 2 制备环状碳酸酯，且具有优异的循环稳定性，对于实现CO 2 减排和资源化利用具有重要意义。

A kind of ionic liquid and its preparation method and application containing amino acid of the cation with amino

本发明涉及一种阳离子带氨基的含有氨基酸的离子液体及其制备方法和应用。所述的带有氨基酸的离子液体中，阴离子为氨基酸，阳离子为带有氨基的阳离子。本发明提供的含有氨基酸的功能化离子液体，该离子液体在催化二氧化碳与环氧化合物合成环状碳酸酯中，具有产量高，活性强，无需助催化剂和其他溶剂，反应条件温和，稳定性高且对环境无污染、绿色环保等优点。

Heterocyclic aromatic anion salts, and their uses as ionic conducting materials

L'invention a pour objet des composés ioniques, dans lesquels la charge anionique est délocalisée, et leurs utilisations. Un composé de l'invention comprend une partie anionique associée à au moins une partie cationique M+m en nombre suffisant pour assurer la neutralité électronique de l'ensemble. La partie anionique est constituée par l'un des groupes (A) et (B) dans lesquels Y1, Y2, Y3, Y4 et Y5 représentent un groupement carbonyle, un groupement sulfonyle, un groupe thiocarbonyle, un groupement thionyle, un groupement C(=NCN)- ou un groupement -C(=C(CN)2)-; Z représente un radical électroattracteur; chacun des substituants RA, RB, RC et RD représentent indépendamment des autres un radical organique monovalent ou divalent, ou fait partie d'une chaîne polymère, l'un au moins des substituants RC et RD étant un radical perfluoré. Les composés sont utiles notamment pour les matériaux à conduction ionique, les matériaux à conduction électronique, les colorants et la catalyse de diverses réactions chimiques. The subject of the invention is ionic compounds, in which the anionic charge is delocalized, and their uses. A compound of the invention comprises an anionic part associated with at least one cationic part M + m in sufficient number to ensure the electronic neutrality of the whole. The anionic part is constituted by one of the groups (A) and (B) in which Y1, Y2, Y3, Y4 and Y5 represent a carbonyl group, a sulfonyl group, a thiocarbonyl group, a thionyl group, a group C ( = NCN) - or a group -C (= C (CN) 2) -; Z represents an electron-withdrawing radical; each of the substituents RA, RB, RC and RD independently represent the others a monovalent or divalent organic radical, or is part of a polymer chain, at least one of the substituents RC and RD being a perfluorinated radical. The compounds are useful in particular for ionically conductive materials, electronically conductive materials, dyes and the catalysis of various chemical reactions.

Air-activated organotin catalysts for polyurethane synthesis

This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

Compositions containing ionic liquids and uses thereof, especially in organic synthesis

L' invention a pour objet l'utilisation d'un liquide ionique, comme matrice liquide pour la synthèse organique en phase homogène sur support soluble, ledit liquide ionique se présentant sous forme liquide ou solide à température ambiante, de formule A1+X1-, A1+ représentant un cation, fonctionnel ou non, ou un mélange de cations dans lequel soit aucun des cations n'est fonctionnel soit l'un au moins des cations est fonctionnel, et X1- un anion, fonctionnel ou non, ou un mélange d'anions dans lequel soit aucun des anions n'est fonctionnel soit l'un au moins des anions est fonctionnel.

crosslinkable composition, part kit, one-component uses, a coating additive mixture, and a cross-linking composition, rma coating additive mixture, and, coating composition

Oxotitanium complexes useful as asymmetric reaction catalysts particularly for producing beta-hydroxy ketones or alpha-hydroxy carboxylic acid esters.

Metal porphyrin complex, method for producing same, carbon dioxide immobilization catalyst comprising same, and method for producing cyclic carbonic acid ester.

Provided is a metal porphyrin complex represented by general formula (1). (In formula (1), M is a metal. A 1 to A 4 are each independently a substituent group represented by general formula (2).) (In formula (2), D is a divalent organic group having 1 to 20 carbon atoms. E + is a quaternary ammonium group or quaternary phosphonium group having 3 to 60 carbon atoms. X is a halogen atom.) Therefore, provided is a metal porphyrin complex which, when used as a carbon dioxide immobilization catalyst, exhibits high catalytic activity, places little load on the environment and can be easily synthesized.

New catalysts and their use in the preparation of polyurethanes

Procedimiento para la preparación de productos de poliadición de poliisocianato con buenas propiedades mecánicas haciendo reaccionar poliisocianatos (a) con compuestos reactivos con NCO (b) en presencia de catalizadores latentes (c) y dado el caso catalizadores adicionales distintos de (c) y/o activadores con adición de dado el caso agentes de expansión, dado el caso cargas y/o materiales de fibra y dado el caso coadyuvantes y/o aditivos, caracterizado porque como catalizadores latentes se usan compuestos de estaño mononucleares tetravalentes de fórmula I con por lo menos un ligando que contiene al menos un nitrógeno unido por al menos un átomo de oxígeno o de azufre Sn (IV) (L1) n1 (L2) n2 (L3) n3 (L4) n4 ( I ) con n1, n2, n3, n4 0 ó 1 y L1, L2, L3, L4 ligandos mono-, bi-, tri- o tetravalentes o compuestos de estaño polinucleares tetravalentes basados en éstos, teniendo al menos un ligando por átomo de Sn el siguiente significado: -X-Y con X >= O, S, OC (O), OC (S), O (O) S (O) O, O (O) S (O) Y >= -R1-N (R2) (R3) o -R1-C (R4) >=NR2 R1, R2, R3, R4 son, independientemente entre sí, restos de hidrocarburo saturados o insaturados, cíclicos o acíclicos, ramificados o no ramificados, sustituidos o no sustituidos, dado el caso interrumpidos por heteroátomos, o R2, R3, R4 son, independientemente entre sí, hidrógeno, R1-X o R2 y R3 o R2 y R1 o R3 y R1 o R4 y R1 o R4 y R2 forman un anillo y siendo los ligandos restantes, independientemente entre sí, -X-Y con el significado previamente mencionado o teniendo el siguiente significado: restos de hidrocarburo saturados o insaturados, cíclicos o acíclicos, ramificados o no ramificados, sustituidos o no sustituidos, dado el caso interrumpidos por heteroátomos, halogenuros, hidróxido, restos amida, oxígeno, azufre, R2 o XR Process for the preparation of polyisocyanate polyaddition products with good mechanical properties by reacting polyisocyanates (a) with NCO reactive compounds (b) in the presence of latent catalysts (c) ...

Crosslinkable composition comprising a latent base catalyst and latent base catalyst compositions

A crosslinkable composition including at least one crosslinkable component that is crosslinkable under the action of a base catalyst, a first carbonate salt according to a first formula as latent base crosslinking catalyst, and a second carbonate salt according to a second formula as potlife extender, wherein the second carbonate is present in an amount of at least 5 mole % and preferably at most 500 mole % relative to the molar amount of the first carbonate. Further disclosed are catalyst compositions composed of the first and second carbonate salts, to the use of the catalyst composition as base catalyst system in crosslinkable compositions and the crosslinkable compositions, in particular coating compositions comprising the catalyst composition.

Cuprous acetylide ethynylation catalyst - for producing alkynols by low pressure reactions

Low pressure prepn. of butynediol comprises reacting formaldehyde and acetylene at 60-120 degrees C and 2 atmos. partial pressure of acetylene in an aq. medium under agitation in the presence of an ethynylation catalyst consisting of a water-insoluble cuprous acetylide powder contg. 5-20 wt % Cu, 0-3 wt % Bi and a Mg silicate carrier. The copper impregnated Mg silicate catalyst cannot be detonated or burned, unlike most Cu-contg. catalysts of prior art.

Process for the production of paper and board

本发明涉及一种制造纸和纸板的方法，该方法包括：(a)将一种或多种填料、一种或多种阴离子多糖和一种或多种阳离子试剂引入混合区中以形成填料组合物；(b)借助泵将该填料组合物引入包含纤维素纤维的水性悬浮液中；和(c)对所获得悬浮液进行脱水。本发明还涉及一种制造填料组合物的方法，该方法包括：(a)将一种或多种填料、一种或多种阴离子多糖和一种或多种阳离子试剂引入混合区中以形成填料组合物；(b)借助泵将该填料组合物引入储存槽中。

New catalysts and use thereof in the production of polyurethanes

本发明涉及新型催化剂及其制备，以及还涉及其在生产多异氰酸酯加聚产物中优选的用途。

Process for the preparation of saligenin and compounds containing a high proportion of ortho-methylolphenols

Process for the production of condensation products

Air-activated organotin catalysts for polyurethane synthesis

This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

Catalytic system for aldol reactions

The invention relates to a process for the preparation, in a single step, of enones by an aldol condensation of a ketone, such as a gem-dimethyl cyclohexylethanone or gemdimethyl cyclohexenylethanone derivative, with an aldehyde in the presence of a novel catalytic system and a co-ingredient, such as a carboxylic acid anhydride or an anhydrous salt, and without the pre-formation of an enolate. The catalytic system is a metal complex, such as a [(Cl) n (alkoxy) 4−n Ti] or [(Cl) n (alkoxy) 4−n Zr] complex where n is 1 to 3.

Microencapsulated catalyst, methods of preparation and methods of use thereof

Process for the hydrohalogenation of an unsaturated hydrocarbon and for the manufacture of vinyl chloride by hydrochlorination of acetylene

Process for the hydrohalogenation of an unsaturated hydrocarbon using a catalyst comprising at least one ionic liquid (IL) and a metal, according to which said IL and metal are supported on a solid carrier, said process being a continuous industrial process wherein the overall unsaturated hydrocarbon conversion is of at least 60 % during at least 500 hours.

Catalysts and methods for polymer synthesis

본 발명은 하나 초과의 금속 중심을 갖는 올리고머 금속 착물 및 그와 같은 착물을 사용하는 방법을 제공한다. 제공된 금속 착물은 이산화탄소 및 에폭사이드의 공중합에서 유용하다.

A composition for use in a process for the preparation of a rma crosslinkable composition

A composition, for use in a process for the preparation of a RMA crosslinkable composition, obtainable by a process comprising in situ precipitation of a sag control agent (SCA) in a RMA donor resin comprising component A having at least 2 acidic protons C-H in activated methylene or methine or in a RMA acceptor resin comprising component B having at least 2 activated unsaturated groups by in-situ reacting an isocyanate with an amine compound.