ОДНОСТАДИЙНЫЙ СПОСОБ ПОЛУЧЕНИЯ 1,3-ПРОПАНДИОЛА ИЗ ЭТИЛЕНОКСИДА И СИНТЕТИЧЕСКОГО ГАЗА С ПОМОЩЬЮ КАТАЛИЗАТОРА С N-ГЕТЕРОЦИКЛИЧЕСКИМ ЛИГАНДОМ

... 1. Композиция катализатора, содержащая a) компонент кобальта, включающий в себя одно или несколько нелигированных соединений карбонила кобальта; и b) компонент рутения, включающий в себя соединение карбонила рутения, лигированное N-гетероциклическим лигандом, выбранным из группы, состоящей из бидентатных и мультидентатных N-гетероциклических лигандов. 2. Композиция по п.1, где N-гетероциклический лиганд представляет собой диазин или бензодиазин. 3. Композиция по п.2, где N-гетероциклическое соединение выбирается из группы, состоящей из пиримидина, пиразина, пиридазина, хиназолина и хиноксалина. 4. Композиция по п.1, где N-гетероциклическое соединение представляет собой биспиридин. 5. Композиция по п.4, где N-гетероциклическое соединение выбирается из группы, состоящей из 2,2'-дипиридила (DIPY), 2, 2'-бипиримидина (BPYM), 1,10-фенантролина (PHEN), ди-2-пиридил кетона, 4,4'-диметил-2,2'-дипиридила, 5,6-диметилфенантролина, 4,7-диметилфенантролина, 2,2'-бихинолина, неокупроина и 2, 2'-дипиридиламина ...

Установка, способ и катализатор осушки и очистки газообразного углеводородного сырья от сероводорода и/или меркаптанов

ПОЛУЧЕНИЕ КАТАЛИЗАТОРА ОЛИГОМЕРИЗАЦИИ ОЛЕФИНОВ

... 1. Композиция, содержащая:a) композицию, содержащую C-C-карбоксилат хрома(III),i) характеризующуюся инфракрасным спектром, снятым с KBr пластинок, с пиком поглощения инфракрасного излучения υ(CO) в пределах 110 смот ИК пика υ(CO), и отношением высот пиков поглощения инфракрасного излучения для пика поглощения инфракрасного излучения υ(CO) на (1516±15) смк пику поглощения инфракрасного излучения, расположенному на (700±50) см, большим или равным 3:1,ii) характеризующуюся значением проверки по критерию согласия, R, равным по меньшей мере 0,6, для сравнения точек данных высокоэнергетического рентгеноструктурного анализа g(r) композиции, содержащей C-C-карбоксилат хрома(III), с расчетными точками данных высокоэнергетического рентгеноструктурного анализа g(r) для теоретической модели одноядерного ацетата хрома(III) в диапазоне r от 1,3 Ангстрем до 4 Ангстрем, илиiii) полученную способом, включающимприведение в контакт в, по существу, безводных и, по существу, бескислотных условиях1) предшественника ...

CHIRALE KATALYSATOREN FÜR ENANTIOSELEKTIVE SYNTHESEN

Verfahren zur Herstellung von Essigsäure aus Methanol und Kohlenmonoxyd unter Verwendung eines Rhodiumkatalysators auf einem Träger

MONOCYCLOPENTADIENYLKOMPLEXE

Verfahren zur Herstellung von Aldehyden

4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene -1-one prepn - - by gaseous oxidn of 2,4,6-trimethylphenol

In the Title process the phenol is oxidised with molecular O2 or mixts contg. O2 pref. under a partial press of >=0.1 kg/cm2 and =1000 kg/cm, at -20 to 200 degrees C opt. in the presence of a liquid e.g. water or an org. solvent and water contg. a basic substance and opt. in the presence of a Co-complex. The product which is prepd. in a one stage process is a starting material for drugs dyes and ind. chemicals.

New monocyclopentadienyl complex having cyclopentadienyl system with optionally substituted or fused heteroaromatic ring system bound via specific bridge, used in catalyst for polymerization or copolymerization of olefins

A new monocyclopentadienyl complex comprises a cyclopentadienyl system with optionally substituted or fused heteroaromatic ring system bound via specific bridge. A monocyclopentadienyl complex comprises a cyclopentadienyl system with optionally substituted or fused heteroaromatic ring system bound via specific bridge. It is of formula (I) (Cp)(-Z-A)mM (I) Cp = cyclopentadienyl system; Z = bridge between A and Cp and includes groups of formulae (1-3); A = optionally substituted or fused, heteroaromatic ring system; M = metal consisting of titanium (Ti III), V, Cr, Mo or W; m = 1-3. L1B-L3B = C or Si; R1B-R6B = H, Q or SiR7B3; Q = 1-20C alkyl, 2-20C alkenyl, 6-20C aryl, or alkylaryl having 1-10C in the alkyl part and 6-20 C in the aryl part; and R7B = H or Q. The organic radicals R1B-R6B may also be substituted by halogens and two geminal or vicinal radicals R1B-R6B or a radical R1B-R6B, and A may also be joined to form a 5- or 6-membered ring. Two radicals R7B may also be joined to form ...

PREPARATION OF CARBOXYLIC ACID ANHYDRIDES

Nanoparticles and preparation method

MONOCYCLOPENTADIENYLKOMPLEXE

METATHESE OF A NITRILE RUBBER IN PRESENCE OF TRANSITION METAL COMPLEX CATALYSTS

CATALYSTS ON BASIS FROM COPPER COMPLEXES TO THE SYNTHESIS OF OPTICALLY ACTIVE CHRYSANTHEMSÄURE

PROCEDURE FOR THE POLYMERIZATION OF EPOXY CONNECTIONS.

PROCEDURE AND COMPOSITION FOR THE PROMOTION OF HYDROSILYLIERUNGSREAKTIONEN USING STERISCH PREVENT NITROGEN AND PHOSPHORHALTIGER CONNECTIONS

MONOCYCLOPENTADIENYLKOMPLEXE

AN IMPROVED PROCEDURE FOR THE PRODUCTION OF ADIPIC ACID

Procedure for the separation of rhodium from Rhodiumcarbonylkomplexe containing solutions and transfer of abgescheidenen rhodium into soluble Rhodiumcarbonylkomplexe

P-FUNKTIONALISIERTE OF AMINES OF N-HALTIGER ONES AROMATICS, THEIR PRODUCTION AND YOUR USE IN CATALYTIC REACTIONS

PROCEDURE FOR THE ISOMERIZATION OF ALLYL ALCOHOLS

PROCEDURE FOR THE PRODUCTION OF ALDEHYDES

CATALYST AND PROCEDURE FOR THE HYDROGENATION OF OLEFINISCH INSATIATED CONNECTIONS

OLIGOMERISIERUNGSKATALYSATOR

CATALYTIC COMPOSITION FOR CARBONYLIERUNG WITH IRIDIUM AND PYRIDINE ATTITUDE POLYMERS

CHROMIUM COMPOUNDS USEFUL AS CATALYSTS FOR POLYMERIZATION OF OLEFIN

Organo-metallic frameworks derived from carbenophilic metals and method of making same

The disclosure provides organic frameworks comprising increased stability.

Oligomerization catalyst system and process for oligomerizing olefins

Among other things, this disclosure provides an olefin oligomerization system and process, the system comprising: a) a transition metal compound; b) a pyrrole compound having a hydrogen atom on at the 5- position or the 2- and 5- position of a pyrrole compound and having a bulky substituent located on each carbon atom adjacent to the carbon atom bearing a hydrogen atom at the 5- position or the 2- and 5- position of a pyrrole compound. These catalyst system have significantly improved productivities, selectivities to 1-hexene, and provides higher purity 1-hexene within the C6 fraction than catalyst systems using 2,4-dimethyl pyrrole.

Method of manufacturing acetic acid

Monocyclopentadienyl complexes

Method for producing branched alcohols

The invention relates to a method for producing branched alcohols of general formula (I), the groups R ...

Catalyst and process for producing optically active beta amino acids and esters

PROCESS FOR PREPARATION OF 4-HYDROXY-2,4,6-TRIMETHYL-2,5-CYCLOHEXADIENE-1-ONE

CATALYTIC MATERIAL AND METHOD FOR PREPARATION THEREOF

CATALYTIC OXIDATION OF LIQUID CYCLOPARAFFINS

POLYMERIC DIPHOSPHINE LIGANDS FOR HOMOGENEOUSLY SOLUBLE HYDROGENATION CATALYSTS, PROCESS FOR THE PRODUCTION THEROF AND USE

Molecular weight-enlarged, homogeneously soluble ligands for hydrogenation catalysts comprising homochiral active centres of bis(3,4-diarylphosphinyl)pyrrolidines. Once transferred into catalysts, the ligands may advantageously be used in membrane reactors in semi- continuous or continuous organic syntheses. Process and use, catalysts.

PROCESS TO DECREASE OR ELIMINATE CORROSION FROM THE DECOMPOSITION OF HALIDE CONTAINING OLEFIN CATALYSTS

A processes is provided to inhibit or limit the decomposition of a halide- containing olefin oligomerization catalyst system during recovery of an oligomerization product. The process includes deactivation of an olefin oligomerization catalyst system present in an olefin oligomerization reactor effluent stream by contact with an alcohol under conditions that minimize potential for deactivated catalyst system decomposition. Such conditions include minimization of the water content of the deactivation agent and concentration of the deactivation agent.

HYDROGENATION OF CYCLOPENTADIENE TO FORM CYCLOPENTENE

IMPROVEMENT IN HYDROGENATION OF CYCLOPENTADIENE TO FORM CYCLOPENTENE There is disclosed an improved process for selectively hydrogenating cyclopentadiene to form cyclopentene in the presence of a catalyst comprising (A) a hydrocarbon-soluble nickel compound such as nickel salts of carboxylic acids or organo nickel compounds, (B) an organo reducing agent such as organoaluminum compounds or lithium alkyl compounds and (C) pyridine, the improvement being that the soluble nickel compound and the pyridine are employed in amounts wherein the mole ratio of aluminum or lithium to the nickel ranges from 7/1 to 11/1 and the mole ratio of the pyridine to the nickel compound ranges from 1/1 to 2.5/1.

PROMOTING THE CATALYTIC PROCESS FOR MAKING POLYHYDRIC ALCOHOLS

PROMOTING THE CATALYTIC PROCESS FOR MAKING POLYHYDRIC ALCOHOLS This invention relates to the manufacture of such valuable chemicals as polyhydric alcohols, their ether and ester derivatives, oligomers of such alcohols and monohydric alcohols and their ether and ester derivatives by reacting hydrogen and oxides of carbon in the presence of a rhodium carbonyl complex in combination with optimum amounts of amine promoters. S P E C I F I C A T I O N ...

INSOLUBLE COMPLEX OXIDATION CATALYSTS

Insoluble complex oxidation catalysts comprising chromium salts bound on an insoluble polymer supports having pendant pyridine groups, that are useful in oxidation reactions such as Tetralin? to .alpha.-tetralone, ethylbenzene to acetophenone, and 2-methyl-5-ethylpyridine to 2-methyl-5-acetylpyridine. Also disclosed are processes for accomplishing such oxidations utilizing such catalysts.

CATALYTIC PROCESS FOR POLYHYDRIC ALCOHOLS AND DERIVATIVES

MANUFACTURE OF POLYFUNCTIONAL COMPOUNDS

METHODS OF PREPARATION OF AN OLEFIN OLIGOMERIZATION CATALYST

A method of making a catalyst for use in oligomerizing an olefin comprising a chromium--containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprising the chromium-containing compound and a composition comprising the metal alkyl, wherein the composition comprising the chromium-containing compound is added to the composition comprising the metal alkyl.

METHODS OF PREPARATION OF AN OLEFIN OLIGOMERIZATION CATALYST

A method of making a catalyst for use in oligomerizing an olefin comprising a chromium--containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprising the chromium-containing compound and a composition comprising the metal alkyl, wherein the composition comprising the chromium-containing compound is added to the composition comprising the metal alkyl.

METHOD FOR PRODUCING CARBONYL COMPOUND

To provide a production method for suppressing the reduction in production rate of a carbonyl compound due to transferring a noble metal component into liquid phase. A method for producing a carbonyl compound, including: a reaction step of reacting a carbonylation raw material with CO in liquid phase including a solid catalyst having noble metal complex on a resin carrier containing quaternized nitrogen to produce a carbonyl compound; a distillation step of distilling a reaction product liquid to recover gas phase distillaze including the carbonyl compound; and a circulation step of circulating a bottom product from the distillation to reaction step. After part of the bottom product contacts with an acidic cation-exchange resin to remove nitrogen compound, liquid having higher moisture concentration than the bottom product contacts with the resin to extract noble metal complex captured by oligomer adsorbing the resin, and the complex is returned to the reaction step.

OLIGOMERIZATION CATALYST SYSTEM AND PROCESS FOR OLIGOMERIZING OLEFINS

Among other things, this disclosure provides an olefin oligomerization system and process, the system comprising: a) a transition metal compound; b) a pyrrole compound having a hydrogen atom on at the 5- position or the 2- and 5- position of a pyrrole compound and having a bulky substituent located on each carbon atom adjacent to the carbon atom bearing a hydrogen atom at the 5- position or the 2- and 5- position of a pyrrole compound. These catalyst system have significantly improved productivities, selectivities to 1-hexene, and provides higher purity 1-hexene within the C6 fraction than catalyst systems using 2,4-dimethyl pyrrole.

PREPARING CATALYST FOR OLEFIN POLYMERIZATION

Improvements or modifications of earlier process for preparing chromium-containing compounds, such as, for example, chromium pyrrolides, by forming a mixture of a chromium salt, a metal amide, particularly a pyrrolide, and an electron pair donor solvent, such as, for example, an ether, and reaction with an unsaturated hydrocarbon are disclosed, including use of pyrrole or derivatives thereof as the pyrrolide and an aliphatic as the unsaturated hydrocarbon. A new process for preparing a catalyst system comprises combining a metal source, a pyrrole-containing compound and a metal alkyl without a preliminary reaction step between the metal source and the pyrrole-containing compound in the presence of an electron donor solvent. These catalyst systems and chromium-containing compounds either unsupported or supported on an inorganic oxide support, if desired functioning as a cocatalyst in combination with another polymerization catalyst, such as containing chromium or titanium, can be used to ...

CARBONYLATION CATALYST SYSTEM

POLYMERIZATION OF .ALPHA.-OLEFINS WITH TRANSITION METAL CATALYSTS BASED ON BIDENTATE LIGANDS CONTAINING PYRIDINE OR QUINOLINE MOIETY

Disclosed is a novel bidentate pyridine transition metal catalyst having general formula (1), where Y is O, S, NR, (2), or (3), each R is independently selected from hydrogen or C1 to C6 alkyl, each R' is independently selected from C1 to C6 alkyl, C1 to C6 alkoxy, C6 to C16 aryl, halogen, or CF3, M is titanium, zirconium, or hafnium, each X is independently selected from halogen, C1 to C6 alkyl, C1 to C6 alkoxy, or (4), L is X, cyclopentadienyl, C1 to C6 alkyl substituted cyclopentadienyl, indenyl, fluorenyl, or (5), "m" is 0 to 4, and "n" is 1 to 4. Also disclosed is a method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer using that catalyst or a catalyst that has general formula (6), where Y, M, L, X, and R' were previously defined and each "p" is independently selected from 0 to 3.

Verfahren zur Herstellung von trans-1-Chlorbuten-(2) und 3-Chlorbuten-(1)

Verfahren zur Herstellung organischer Isocyanate

METHODS OF DEPOSITION OF POLYMER AND DEACTIVATED ORGANOMETALLIC CATALYST IN REACTION OF OLEFIN OLIGOMERIZATION

METHOD OF SEPARATING PRODUCTS OF OLIGOMERIZATION OF OLEFINS AND DECOMPOSITION OF OLIGOMERIZATION OF RESIDUES OF CATALYST

INSTALLATION, METHOD AND TREATMENT CATALYST GASEOUS HYDROCARBON RAW MATERIAL FROM HYDROGEN SULFIDE AND MERCAPTANS

CATALYTIC PROCESS OF PRODUCTION Of an ESTER Of CARBOXYLIC ACID BY CARBONYLATION Of an OLEFIN IN THE PRESENCE OF an ALCOHOL

Novel process for preparation of 4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene-1-one

CATALYSEUR ET PROCEDE POUR LA PRODUCTION DE NITRODIPHENYLAMINES

Catalyseur consistant en un produit de réaction d'un composé de cuivre avec de la N-méthyl-pyrrolidone, qui accélère la réaction des nitrochloro-benzènes avec les amines aromatiques.

CYCLIC SUPPORTED CATALYSTS

La présente invention concerne des ligands basés sur des calixarènes, les complexes métalliques comprenant de tels ligands et leur utilisation en tant que catalyseurs homogènes ou hétérogènes.

PRODUCTION OF AROMATIC ISOCYANATES

Process for preparing 1-tetrahydronaphthalone

COMPLEX OF THE FORMULA PDL(CO)X2 WHERE L IS HETEROAROMATIC NITROGEN COMPOUND AND X IS A HALIDE

ORGANOMETALLIC STRUCTURE USABLE IN PARTICULAR LIKE CATALYST, LIKE ITS MANUFACTORING PROCESS

L'invention concerne une nouvelle structure métallique. Cette structure comprend un substrat (10) sur lequel est liée au moins une première couche métallique (30) comprenant au moins un premier métal et est caractérisée en ce que la première couche métallique (30) comprend au moins ledit premier métal à l'état oxydé lié chimiquement audit substrat, une couche organique bifonctionnelle (40) étant liée chimiquement par une première fonction adaptée pour se lier chimiquement audit premier métal de la première couche métallique (30) , et une deuxième couche métallique (50) comprenant au moins un second métal à l'état oxydé lié chimiquement à ladite couche organique (40) par une deuxième fonction adaptée pour se lier chimiquement audit second métal de la deuxième couche métallique. L'invention permet d'améliorer la synthèse chimique par catalyse hétérogène.

COMPOSITION COMPRISING A CARBENE AND AN ORGANIC MATRIX, ITS PRODUCTION PROCESS AND USE THEREOF

L'invention concerne une composition comprenant un carbène et une matrice organique ou un précurseur de cette matrice, un procédé d'obtention de cette composition et son utilisation. L'invention concerne plus particulièrement l'utilisation de cette composition comme catalyseur de réactions chimiques.

Catalytic production of acrylic esters in the presence of a formed complex of a nickel halide and a nitrogenized hydroxy-aromatic compound

PRODUCTION OF ORGANO?SILICON COMPOUNDS

카르보닐 화합물의 제조 방법

... 귀금속 성분의 액상 중으로의 이행에 수반하는 카르보닐 화합물의 제조 속도의 저하의 개선에 유효한 제조 방법을 제공하는 것. 4급화 질소를 함유하는 수지 담체 상에 귀금속 착체를 담지시킨 고체 촉매를 포함하는 액상 중에서, 카르보닐화 원료를 일산화탄소와 반응시켜 카르보닐 화합물을 생성시키는 반응 공정과, 상기 반응 공정으로부터의 반응 생성액을 증류하여 카르보닐 화합물을 포함하는 기상 유분(留分)을 회수하는 증류 공정과, 상기 증류 공정으로부터의 관출액을 상기 반응 공정으로 순환시키는 순환 공정을 갖는, 카르보닐 화합물의 제조 방법에 있어서, 상기 관출액의 적어도 일부를 산성 양이온 교환 수지와 접촉시켜 상기 관출액에 포함되는 질소 화합물을 제거한 후, 상기 관출액보다 수분 농도가 높은 액체를 상기 이온 교환 수지와 접촉시켜 상기 이온 교환 수지에 흡착되어 있는 올리고머에 포착되어 있는 귀금속 착체를 추출하고, 상기 추출한 귀금속 착체를 상기 반응 공정으로 복귀시키는 것을 특징으로 하는, 카르보닐 화합물의 제조 방법.

composição catalítica à base de níquel e de ligando do tipo fosfina e de uma base de lewis e sua utilização em um processo de oligomerização das olefinas

Process to decrease or eliminate corrosion from the decomposition of halide containing olefin catalysts

A processes is provided to inhibit or limit the decomposition of a halide-containing olefin oligomerization catalyst system during recovery of an oligomerization product. The process includes deactivation of an olefin oligomerization catalyst system present in an olefin oligomerization reactor effluent stream by contact with an alcohol under conditions that minimize potential for deactivated catalyst system decomposition. Such conditions include minimization of the water content of the deactivation agent and concentration of the deactivation agent.

Novel catalytic composition based on nickel and a phosphine type ligand and a lewis base, and its use in a process for the oligomerization of olefins

The invention concerns a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PR1 R2 R3 in which the groups R1, R2 and R3 may be identical or different and may or may not be bonded together, and at least one Lewis base, said composition having a molar ratio of the phosphine ligand to the nickel precursor of less than or equal to 5 and a molar ratio of the Lewis base and phosphine ligand together to the nickel precursor of greater than or equal to 5.

ZIRCONIUM CONTAINING COMPLEX AND CONDENSATION REACTION CATALYSTS, METHODS FOR PREPARING THE CATALYSTS, AND COMPOSITIONS CONTAINING THE CATALYSTS

A composition is capable of curing via condensation reaction. The composition uses a new condensation reaction catalyst. The new condensation reaction catalyst is used to replace conventional tin catalysts. The composition can react to form a gum, gel, rubber, or resin.

CATALYSTS FOR METATHESIS REACTONS INCLUDING ENANTIOSELECTIVE OLEFIN METATHESIS, AND RELATED METHODS

The present invention provides compositions comprising metal complexes, and related methods. In some embodiments, metal complexes of the invention may be useful as catalysts for chemical reactions, including metathesis reactions, wherein the catalysts exhibit enhanced activity and stereoselectivity. In some embodiments, the invention may advantageously provide metal complexes comprising a stereogenic metal atom. Such metal complexes may be useful in enantioselective catalysis.

ALKOXYLATION USING CALCIUM CATALYSTS AND PRODUCTS THEREFROM

Narrow, balanced alkoxylation product mixture distributions having at least one alkoxylation product constituting more than 20 weight percent of the mixture can be provided by modified, calcium-containing catalysts. Catalysts for alkoxylation processes can be produced from lime and can, with modification, be used to make the narrow, balanced alkoxylation product mixture distribution.

Catalyst of nickel compound and ligand in presence of a reducing metal

Aryl and heteroaryl mono chlorides are coupled in an aprotic solvent under an inert atmosphere by a catalyst mixture of a nickel compound and a ligand in the presence of a reducing metal.

Catalyst and process for preparing organic urethanes

Organic urethanes are prepared by reacting an organic nitrocompound, an organic hydroxy compound, and carbon monoxide in the presence of a novel catalyst system. The catalyst system is comprised of a noble metal compound, a heteroaromatic nitrogen compound, and an oxide of thorium or uranium.

Bicyclooctyl phosphines and catalysts thereof

Bicyclooctyl phosphines are disclosed having the formula: см. иллюстрацию в PDF-документе where R is C1 to C6 linear or branched alkyl, phenyl, substituted phenyl, halo, or C1 or C6 alkoxy; Ar is phenyl, substituted phenyl, naphthyl or substituted naphthyl; and x is 0 or 1. These phosphines are treated with ruthenium compounds to form a complex of the formula Rux Hy Clz (anthraphos-m)2 (S)p, where S is a tertiary amine; and when y is 0, then x is 2, z is 4 and p is 1; and when y is 1, then x is 1, z is 1 and p is 0; where anthraphos-m is: см. иллюстрацию в PDF-документе where R is C1 to C6 linear or branched alkyl, phenyl, substituted phenyl, C1 to C6 linear or branched alkoxy or halo; Ar is phenyl or substituted phenyl or naphthyl or substituted naphthyl; and m is 0 or 1. The complex is useful in a process for the asymmetric reduction of olefinic carboxylic acids of the formula: см. иллюстрацию в PDF-документе where R1 and R2 are the same or different and are hydrogen, alkyl, cycloalkyl ...

Diphosphines, their complexes with transisition metals and their use in asymmetric synthesis

The invention relates to novel diphosphines, in optically pure or racemic form, of formula (I):in which:R1 and R2 are a (C5-C7)cycloalkyl group, an optionally substituted phenyl group or a 5-membered heteroaryl group; andA is (CH2-CH2) or CF2.The invention further relates to the use of a compound of formula (I) as a ligand for the preparation of a metal complex useful as a chiral catalyst in asymmetric catalysis, and to the chiral metal catalysts comprising at least one ligand of formula (I).

Process for producing an aromatic urethane

An aromatic urethane is obtained at high yield without involving corrosion of a stainless steel reactor by interacting an aromatic nitro compound, an organic compound having at least one hydroxyl group therein and carbon monoxide in the presence of a catalyst composed of (1) palladium, ruthenium, rhodium or compounds thereof, (2) a Lewis acid, and (3) a tertiary amine. For instance, 2,4-dinitrotoluene, ethanol and carbon monoxide placed in a SUS-32 reactor are interacted in the presence of a catalyst composed of (1) 5% palladium on carbon, (2) ferric chloride, and (3) pyridine to obtain 2,4-diethyldicarbamatetoluene without corrosion of the reactor. After completion of the reaction, the catalyst and reaction product are separated from the reaction system; e.g., the insoluble catalyst is first separated and then the reaction solution is cooled down, e.g., to room temperature, to separate the reaction product as crystals, followed by separation of the crystals by filtration. Then, the reaction ...

DEHYDROGENATION OF NEAT FORMIC ACID

A formic acid decomposition catalyst system includes organometallic complexes having formula 1: 121.-. (canceled)23. The organometallic complex of wherein M is a metal selected from the group consisting of beryllium claim 22 , magnesium claim 22 , aluminum claim 22 , scandium claim 22 , titanium claim 22 , vanadium claim 22 , chromium claim 22 , manganese claim 22 , iron claim 22 , cobalt claim 22 , nickel claim 22 , copper claim 22 , zinc claim 22 , gallium claim 22 , germanium claim 22 , yttrium claim 22 , zirconium claim 22 , niobium claim 22 , molybdenum claim 22 , technetium claim 22 , ruthenium claim 22 , rhodium claim 22 , palladium claim 22 , silver claim 22 , cadmium claim 22 , indium claim 22 , tin claim 22 , antimony claim 22 , lanthanum claim 22 , cerium claim 22 , praseodymium claim 22 , neodymium claim 22 , promethium claim 22 , samarium claim 22 , europium claim 22 , gadolimium claim 22 , terbium claim 22 , dysprosium claim 22 , holmium claim 22 , erbium claim 22 , thalium claim 22 , ytterbium claim 22 , lutetium claim 22 , hafnium claim 22 , tantalum claim 22 , tungsten claim 22 , rhenium claim 22 , osmium claim 22 , iridium claim 22 , gold claim 22 , platinum claim 22 , thallium claim 22 , lead claim 22 , bismuth claim 22 , polonium claim 22 , thorium claim 22 , protactinium claim 22 , uranium claim 22 , neptunium claim 22 , and plutonium.24. The organometallic complex of wherein M is a transition metal selected from the group consisting of ruthenium claim 22 , rhodium claim 22 , iridium claim 22 , and iron.25. The organometallic complex of wherein M is iridium.26. The organometallic complex of wherein R claim 22 , Rare each independently methyl claim 22 , ethyl claim 22 , butyl claim 22 , n-propyl claim 22 , isopropyl claim 22 , n-butyl claim 22 , sec-butyl claim 22 , t-butyl.27. The organometallic complex of wherein the Rare hydrogen.28. The organometallic complex of wherein Ris hydrogen claim 22 , methyl claim 22 , ethyl claim 22 , butyl claim 22 ...

METHOD OF PREPARING TRISUBSTITUTED ETHYLENE COMPOUNDS

Method of forming a trisubstituted ethylene compound, the method comprising: (A) providing a trisubstituted ethylene compound bearing a first, a second and a third substituent, in which the first and the second substituent are bound to the one olefinic carbon atom and are different from one another; (B) providing a monosubstituted ethylene compound or a disubstituted ethylene compound in which the substituents are vicinally bound to the olefinic carbon atoms, bearing at least a fourth substituent, respectively; (C) subjecting the trisubstituted ethylene compound provided in step (A) to a cross-metathesis reaction with olefin provided in step (B) to form said trisubstituted ethylene, wherein the cross-metathesis reaction is catalysed by a transition metal complex bearing ligands from which one ligand is a carbene ligand, wherein the carbene complex is characterized by a M═C moiety, wherein M is the transition metal; and wherein the reaction proceeds stereoselectively.

Use of organic rhenium compounds in the oxidation of multiple C-C bonds, oxidation processses based thereon and novel organic rhenium compounds

НОВАЯ КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ НА ОСНОВЕ НИКЕЛЯ И ЛИГАНДА ФОСФИНОВОГО ТИПА И ОСНОВАНИЯ ЛЬЮИСА И ЕГО ПРИМЕНЕНИЕ В СПОСОБЕ ОЛИГОМЕРИЗАЦИИ ОЛЕФИНОВ

Изобретение относится к каталитической композиции, содержащей по меньшей мере один предшественник никеля со степенью окисления (+II), по меньшей мере один фосфиновый лиганд формулы PR1R2R3, в котором группы R1, R2и R3являются одинаковыми или отличающимися друг от друга и необязательно связаны между собой, активирующий агент, выбранный из группы, которую образуют хлор- и бромпроизводные насыщенные углеводородные соединения алюминия, применяемые по отдельности или в смеси, и по меньшей мере одно основание Льюиса, причем в указанной композиции молярное отношение фосфинового лиганда к предшественнику никеля меньше или равно 5, молярное отношение комбинации основания Льюиса и фосфинового лиганда к предшественнику никеля составляет от 5 до 30, молярное отношение активирующего агента к предшественнику никеля превышает или равно 6 и меньше или равно 30. 2 н. и 9 з.п. ф-лы, 7 пр.

ДОБАВКИ ДЛЯ НЕПРЕРЫВНОСТИ И ИХ ПРИМЕНЕНИЕ В ПРОЦЕССАХ ПОЛИМЕРИЗАЦИИ

Изобретение относится к способам полимеризации олефинов в присутствии каталитических композиций. Заявленная каталитическая композиция включает по меньшей мере одно каталитическое соединение, выбранное из группы, включающей металлоценовый катализатор, содержащий элемент группы 15 катализатор и их сочетание, и по меньшей мере одно полиоксометаллокарбоксилатное соединение, которое отвечает формуле: (MQO)n, в которой М обозначает металл 13 группы; Q обозначает карбоксилатную группу, содержащую от 2 до 24 углеродных атомов; О обозначает кислород; а n обозначает целое число в пределах от 3 до 25. Изобретение также относится к способу полимеризации олефинов и к способу получения каталитической композиции. Способ получения композиции включает контактирование каталитического соединения с полиоксометаллокарбоксилатным соединением с получением каталитической композиции. Технический результат - улучшение работоспособности реактора во время процессов полимеризации благодаря уменьшению сплавления полимерных ...

СПОСОБ ПОЛУЧЕНИЯ ОЛЕФИНОВ

Изобретение относится к получению олефинов, регенерации катализатора и рециклу. Способ ингибирования каталитической системы тримеризации при получении олефинов включает следующие последовательные стадии: а) контактирование потока продукта, выходящего из реактора со спиртом; б) удаление и регенерация любых желаемых олефиновых продуктов; в) добавление водного основания к не содержащей олефина части продукта (б); г) удаление осадка из продукта (в); д) разделение водной и органической фаз (г); е) добавление кислоты к водной фазе (д). Указанный способ позволяет эффективно дезактивировать, замедлять катализатор, препятствуя образованию полимера, который может налипать на внутренние стенки или другие части реактора и препятствовать теплопередаче. 2 с. и 18 з.п. ф-лы, 2 табл.

НОВАЯ КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ НА ОСНОВЕ НИКЕЛЯ И ЛИГАНДА ФОСФИНОВОГО ТИПА И ОСНОВАНИЯ ЛЬЮИСА И ЕГО ПРИМЕНЕНИЕ В СПОСОБЕ ОЛИГОМЕРИЗАЦИИ ОЛЕФИНОВ

КАТАЛИЗАТОРЫ НА ОСНОВЕ ПЕРЕХОДНОГО МЕТАЛЛА 8 ГРУППЫ, СПОСОБ ИХ ПОЛУЧЕНИЯ И СПОСОБ ИХ ПРИМЕНЕНИЯ В РЕАКЦИИ МЕТАТЕЗИСА

СПОСОБ ПОЛУЧЕНИЯ ОЛЕФИНОВ

Способ, обеспечивающий ингибирование активности каталитической системы тримеризации, который включает последовательные стадии контактирования потока продукта, выходящего из реактора со спиртом: удаление любых желаемых олефиновых продуктов, добавление водного основания к не содержащей олефина части продукта, удаление осадка, разделение водной и органической фаз и добавление кислоты к водной фазе.

СПОСОБ ПОЛИМЕРИЗАЦИИ И СОПОЛИМЕРИЗАЦИИ ОЛЕФИНОВЫХ ОЛИГОМЕРОВ

... 1. Способ полимеризации или сополимеризации олефинового олигомера, полученного по реакции тримеризации из олефинового мономера, содержащего 2-6 атомов углерода, с помощью каталитической системы для реакции тримеризации, приготовленной по способу, включающему смешение источника хрома, азотсодержащего лиганда и алкилалюминия, отличающийся тем, что каталитическая система для реакции тримеризации приготовлена способом, включающим в себя СВЧ-облучение алкилалюминия. ! 2. Способ по п.1, отличающийся тем, что частоту СВЧ-облучения выбирают в пределах от 0,2 ГГц до 20 ГГц, а СВЧ-облучение алкилалюминия проводят в течение от 0,5 до 20 мин. ! 3. Способ по п.1, отличающийся тем, что частоту СВЧ-облучения выбирают равной 2,45 ГГц. ! 4. Способ по п.1, отличающийся тем, что в ходе приготовления катализатора тримеризации добавляют источник галогенида формулы RmXn, где R - органический или неорганический радикал, X - фтор, хлор, бром или йод, m+n>0. ! 5. Способ по любому из пп.1-4, отличающийся тем, что ...

ДОБАВКИ ДЛЯ НЕПРЕРЫВНОСТИ И ИХ ПРИМЕНЕНИЕ В ПРОЦЕССАХ ПОЛИМЕРИЗАЦИИ

... 1. Каталитическая композиция, включающая: ! по меньшей мере одно каталитическое соединение и ! по меньшей мере одно полиоксометаллокарбоксилатное соединение, которое отвечает формуле ! (MQO)n, ! в которой М обозначает металл из групп со 2 по 14; Q обозначает карбоксилатную группу, содержащую от 2 до 24 углеродных атомов; О обозначает кислород; а n обозначает целое число от 3 до 25. ! 2. Каталитическая композиция по п.1, в которой ! полиоксометаллокарбоксилатное соединение представляет собой соединение, дополнительно связанное с Q' и Q”, где Q' обозначает Q или любую группу R, где R обозначает гидрокарбильный радикал, а Q” обозначает Н, R или -C(O)-R, где R обозначает гидрокарбильный радикал. ! 3. Каталитическая композиция по п.1, в которой ! полиоксометаллокарбоксилатное соединение представляет собой полиоксоалюмостеарат. ! 4. Каталитическая композиция по одному из пп.1-3, в которой по меньшей мере одно каталитическое соединение выбирают из группы, включающей обычный катализатор, металлоценовый ...

Способ получения эфиров угольной кислоты

ALKOXYLATION DURCH VERWENDUNG VON CALCIUM-KATALYSATOREN UND PRODUKTE DAVON.

HYDRIERUNG VON KAUTSCHUKEN

Katalysator und Verfahren für die Epoxydierung von olefinischen Verbindungen

Verfahren zur Herstellung von Essigsäure aus Methanol und Kohlenmonoxyd unter Verwendung eines Rhodiumkatalysators auf einem Träger

Transfer Hydrogenation of Cyclopamine Analogs

Provided herein is a process for the transfer-hydrogenation of ketone analogs of members of the jervine type of Veratrum alkaloids, such as cyclopamine. Also provided herein are novel ruthenium transfer-hydrogenation catalysts.

Process

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

Molecular Molybdenum Persulfide and Related Catalysts for Generating Hydrogen from Water

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

Olefin Oligomerization Methods

Processes for oligomerizing olefins utilizing a catalyst system including a) a transition metal complex that is transition metal compound complexed to a pyridine bisimine ligand and b) a metal alkyl and controlling the olefin oligomer product distribution K value by adjusting i) a transition metal of the transition metal complex concentration in the reactor, ii) a metal of the metal alkyl concentration in the reactor, iii) a metal of the metal alkyl to transition metal of the transition metal complex molar ratio in the reactor, and iv) any combination thereof.

Novel metal complex catalysts and uses thereof

The invention relates to novel metal complexes useful as catalysts in redox reactions (such as, hydrogen (H 2 ) production). In particular, the invention provides novel transition metal (e.g., cobalt (Co) or nickel (Ni)) complexes, in which the transition metal is coupled with N,N-Bis(2-pyridinylmethyl)-2,2′-Bipyridine-6-methanamine (DPA-Bpy), 6′-((bis(pyridin-2-ylmethyl)amino)methyl)-N,N-dimethyl-2,2′-bipyridin-6-amine (DPA-ABpy), or a derivative thereof. The invention also relates to a method of producing H 2 from an aqueous solution by using the metal complex as a catalyst. In certain embodiments, the invention provides a metal complex of the formulae as described herein.

DECARBOXYLATIVE CONJUGATE ADDITIONS AND APPLICATIONS THEREOF

Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside. 1. A method of peptide functionalization comprising:providing a reaction mixture including a Michael acceptor and a peptide; andcoupling the Michael acceptor with the peptide via a mechanism including decarboxylation.2. The method of claim 1 , wherein coupling of the peptide and the Michael acceptor provides a 1 claim 1 ,4-addition adduct.4. The method of claim 1 , wherein the peptide comprises at least three amino acids.5. The method of claim 1 , wherein the peptide comprises at least five amino acids.6. The method of claim 1 , wherein the peptide is a protein.7. The method of claim 1 , wherein decarboxylation occurs subsequent to formation of a carboxyl radical at a peptide residue.8. The method of claim 7 , wherein carboxyl radical formation is initiated by a single electron transfer (SET) process.9. The method of claim 8 , wherein the SET process is oxidative.10. The method of claim 8 , wherein the SET process is reductive.11. The method of claim 7 , wherein an α-amino radical is formed by the decarboxylation at the peptide residue.12. The method of claim 11 , wherein the α-amino radical undergoes conjugate addition with the Michael acceptor.13. The method of claim 8 , wherein the reaction mixture further comprises catalyst for initiating the SET process.14. The method of wherein the catalyst is transition metal catalyst.15. The method of claim 13 , wherein the catalyst is photoredox catalyst.16. The method of ...

Rh-C3N4 HETEROGENEOUS CATALYST FOR PREPARING ACETIC ACID BY CARBONYLATION REACTION

This invention relates to a catalyst for use in the preparation of acetic acid through a methanol carbonylation reaction using carbon monoxide, and particularly to a heterogeneous catalyst represented by Rh/C 3 N 4 configured such that a complex of a rhodium compound and 3-benzoylpyridine is immobilized on a carbon nitride support.

MARKOVNIKOV-SELECTIVE PALLADIUM CATALYST FOR CARBONYLATION OF ALKYNES WITH HETEROARENES

Markovnikov-selective palladium catalyst for carbonylation of alkynes with heteroarenes. 2. Use of a compound according to claim 1 ,for catalysing a carbonylation reaction.3. A process comprising the following process steps:a) initially charging an alkyne,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'b) adding a compound according to and a substance including Pd,'}c) feeding in N-methylpyrrole and CO,d) heating the reaction mixture, with conversion of the alkyne to the product. The invention relates to Markovnikov-selective palladium catalyst for carbonylation of alkynes with heteroarenes.The development of ligands plays a key role and provides significant innovations in homogenous catalysis and organic synthesis. Illustrative examples include polymerizations, organometallic coupling reactions, carbonylations, hydrogenations and metathesis. Although a plethora of nitrogen- and phosphorous-based ligands have been developed over the last decades, their rational design to afford highly active catalyst systems, which can easily be prepared and modified, continues to be an important topic in this area.Among the privileged ligand classes known, especially bi- and multidentate derivatives create highly stable and selective organometallic complexes.The problem addressed by the invention was that of providing a compound which is to have good properties as ligands in palladium catalyst for carbonylation of alkynes and reaches a good result regarding the yield of the carbonylation reaction.The problem is solved by a compound according to claim ,Compound having the structure (1):Additionally claimed is the use of the compound as ligand in a ligand-metal complex for catalysis of a carbonylation reaction.Use of a compound described above in a ligand-metal complex for catalysis of a carbonylation reaction.The process in which the compound is used as ligand in a ligand-metal complex for conversion of an olefin to an aldehyde is likewise claimed.A process comprising the ...

ZINC COMPLEX

A zinc complex characterized in exhibiting an octahedral structure and being configured from repeating units represented by general formula (I): 4. A catalyst comprising the zinc complex according to .5. A method for acylating a hydroxy group claim 1 , comprising{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'reacting a carboxylic acid or an ester thereof in the presence of the catalyst according to .'}6. A method for converting a hydroxy group to a carbonate claim 1 , comprising{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'reacting a carbonate ester in the presence of the catalyst according to .'}7. A method for deacylating a carboxylate ester claim 1 , comprising{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'deacylating the carboxylate ester in the presence of the catalyst according to .'}13. A catalyst comprising the zinc complex according to .14. A method for acylating a hydroxy group claim 2 , comprising{'claim-ref': {'@idref': 'CLM-00013', 'claim 13'}, 'reacting a carboxylic acid or an ester thereof in the presence of the catalyst according to .'}15. A method for converting a hydroxy group to a carbonate claim 2 , comprising{'claim-ref': {'@idref': 'CLM-00013', 'claim 13'}, 'reacting a carbonate ester in the presence of the catalyst according to .'}16. A method for deacylating a carboxylate ester claim 2 , comprising{'claim-ref': {'@idref': 'CLM-00013', 'claim 13'}, 'deacylating the carboxylate ester in the presence of the catalyst according to .'} The present invention relates to a novel zinc complex useful as a catalyst for various reactions including transesterification reaction and the like.A lot of multinuclear metal complexes having multiple metal nuclei in each molecule have been developed as highly active catalysts. Of these catalysts, a catalyst comprising a trifluoroacetate-bridged tetranuclear zinc cluster complex containing four zinc ions in a molecule is an excellent catalyst which promotes various reactions such as transesterification ...

Process For Production of Ketones From Secondary Alcohols

The present invention relates to the process for production of ketones from secondary alcohols by the use of a hybrid material, formed by the dichlorohydrotris(pyrazol-1-yl)methane iron (II) complex covalently bound to multi-walled carbon nanotubes functionalized with superficial carboxylate groups, as efficient and selective catalyst of peroxidative oxidation, microwave-assisted and without solvent addition. 1. A process for production of ketones from secondary alcohols , assisted by microwave radiation comprising the mixture of an oxidising agent with a hybrid , material dichlorohydrotris (pyrazol-1-yl) methane iron (II) covalently bound to multi-walled carbon nanotubes functionalized with superficial carboxylate groups as catalyst , at a temperature of 80° C.2. The process according to claim 1 , wherein the oxidising agent is a 70% aqueous solution of tert-butyl hydroperoxide.3. The process according to claim 1 , wherein the dichlorohydrotris (pyrazol-1-yl) methane iron (II) complex contains an iron content of 2% (w/w).4. The process according to claim 1 , wherein the secondary alcohols are selected from: cyclohexanol claim 1 , 1-phenylethanol claim 1 , o- claim 1 , m- or p-cresols claim 1 , linear alcohols such as 2-hexanol claim 1 , 3-hexanol claim 1 , 1-butanol or 2-butanol claim 1 , and diols claim 1 , among others.5. The process according to claim 1 , wherein the reaction time is one hour.6. The process according to claim 1 , which is free from solvent addition.7. The process according to claim 1 , wherein the catalyst dichlorohydrotris (pyrazol-1-yl) methane iron (II) covalently bound to multiple wall carbon nanotubes functionalized with superficial carboxylate groups is reusable in at least six subsequent catalytic cycles. The present invention relates to the process for production of ketones from secondary alcohols by the use of a hybrid material, formed by the dichlorohydrotris(pyrazol-1-yl)methane iron (II) complex covalently bound to multi-walled ...

BLOCK COPOLYMERS OF CYCLIC ESTERS AND PROCESSES FOR PREPARING SAME

Novel processes of preparing block polyester copolymers while precisely controlling the stereoconfiguration (e.g., tacticity), chemical composition and/or length of each unit (block) are provided. Block polyester copolymers featuring desirable combinations of two or more blocks featuring different stereoconfiguration (e.g., tacticity), chemical composition and/or length, including triblock, tetrablock and higher block copolymers are also provided. A novel family of organometallic magnesium complexes and uses thereof in preparing polyesters and block polyester copolymers are also provided. 1. A process of ring opening polymerization of a cyclic ester , the process comprising contacting a plurality of monomers of said cyclic ester with a catalyst system comprising an organometallic magnesium complex , said organometallic magnesium complex comprising a Mg—X unit and a divergent {ONNN} ligand in coordination with said Mg—X.2. The process of claim 1 , being for preparing a polyester.3. The process of claim 1 , wherein said cyclic ester is a lactide.5. The process of claim 4 , wherein X is other than alkoxy or aryloxy.6. The process of claim 4 , wherein X is selected from halo and amine.7. The process of claim 4 , wherein at least one of Rand Ris a bulky rigid alkyl.8. The process of claim 1 , wherein said polymer is a block copolymer comprising a plurality of units claim 1 , at least two of said units independently comprise a plurality of polymerized monomers of a cyclic ester claim 1 , at least one unit of said at least two units comprises a plurality of polymerized monomers of a first cyclic ester claim 1 , and at least one another unit of said at least two units comprises a plurality of polymerized monomers of a second cyclic ester claim 1 , said second cyclic ester differing from said first cyclic ester by a stereoconfiguration and/or a chemical composition claim 1 , the process comprising:sequentially contacting a plurality of monomers of said first cyclic ester and ...

HIGHLY Z-SELECTIVE OLEFIN METATHESIS

The present invention relates generally to catalysts and processes for the Z-selective formation of internal olefin(s) from terminal olefin(s) via homo-metathesis reactions. 139-. (canceled)41. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is phenyl.42. The metal complex of claim 40 , the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is biphenyl.43. The metal complex of claim 40 , the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is 1 claim 40 ,2 claim 40 ,3 claim 40 ,4-tetrahydronaphthyl or naphthyl.44. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , and substituents positioned in close proximity to the metal center are alkylaryl.45. The metal complex of claim 40 , wherein the metal complex is other than W(NAr)(CHCMePh)(Pyr)(HIPTO).46. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is 3 claim 40 ,3′-di-tert-butyl-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′-tetramethyl-2′-(trimethylsilyloxy)biphenyl-2-olate (BiphenTMS) claim 40 , 2′-(tert-butyldimethylsilyloxy)-3-mesityl-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitet) claim 40 , 3 claim 40 ,3′-dimesityl-2′-(tert-butyldimethylsilyloxy)-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitet) claim 40 , or MesBitetOMe is 3 claim 40 ,3′-dimesityl-2′-methoxy-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitetOMe).49. The metal complex of claim 48 , wherein Ris tert-butyl claim 48 , optionally substituted.50. The metal complex of claim 48 , wherein Ris substituted phenyl.51. ...

Quinolines and Process for the Preparation Thereof

The present invention discloses novel N-Heterocyclic compounds of formula A, [Formula A] And a ligand-enabled palladium-catalyzed process for preparation of novel N-Heterocyclic compounds of Formula A via C—H alkynylation of N-heterocycles with alkynyl halides. 2. The compound as claimed in claim 1 , wherein representative compound of formula 1 comprising:8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3a);5-methoxy-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3b);N,N-dimethyl-8-(3-(triisopropylsilyl)prop-2-ynyl)quinolin-5-amine (3c);5-methyl-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3d);(E)-5-styryl-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3e);5-fluoro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3f);5-bromo-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3g);5-(trifluoromethyl)-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3h);5-nitro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3i);7-methyl-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3j);7-fluoro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3k);7-chloro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (31);6-methyl-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3m);6-chloro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3n);4-chloro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline (3o), andethyl 4-chloro-8-(3-(triisopropylsilyl)prop-2-ynyl)quinoline-3-carboxylate (3p);8-(prop-2-yn-1-yl)quinoline.(4a).3. A process for preparation of heterocyclic compound of formula A comprising the steps of:{'sup': '2', 'a) stirring the reaction mixture of alkynyl halide (2), 8-methylquinolines (1a-1p), Palladium-complex, ligand, oxidant, and solvent for the period in the range of 2 to 12 hrs at temperature in the range of 60° C. to 140° C. to afford alkynylated product 3a-p of formula A (wherein Ris TIPS);'}{'sup': '2', 'b) adding Tetra-n-butylammonium fluoride (TBAF) in THF to the alkynylated product of step (a) and diluting the mixture with tetrahydrofurane (THF) followed by stirring the reaction mixture at room ...

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

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

Molecular molybdenum persulfide and related catalysts for generating hydrogen from water

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

CATALYST SYSTEM CONTAINING A METATHESIS CATALYST AND AT LEAST ONE PHENOLIC COMPOUND AND A PROCESS FOR METATHESIS OF NITRILE-BUTADIENE RUBBER (NBR) USING THE CATALYST SYSTEM

The present invention relates to a catalyst system containing a metathesis catalyst containing at least one N-heterocyclic carbene ligand and at least one phenolic compound and to a process for performing the metathesis on nitrile rubbers for reducing their molecular weight using a metathesis catalyst containing at least one N-heterocyclic carbene ligand (NHC ligand) and at least one phenolic compound. 2. The catalyst system of claim 1 , wherein the metathesis catalyst is selected from the group consisting of:dichloro(fluorenylidene)(1,3-dimesityldihydroimidazolylidene)(triphenylphosphino)ruthenium,1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(o-isopropoxyphenylmethylene)ruthenium,[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(phenylmethylene)bis(3-bromopyridine)ruthenium(II), and,1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)(2-isopropoxy-5-nitrobenzylidene)ruthenium(II)chloride.3. The catalyst system of wherein the phenolic compound of general formula (Z1) is selected from the group consisting of:2,2′-methylene-bis(4-methyl-6-tert-butylphenol),2,6-di-tert-butyl-4-methylphenol, and,2,2′-methylenebis(4-methyl-6-nonylphenol).4. The catalyst system of claim 1 , wherein the molar ratio of metathesis catalyst to phenolic compound of general formula (Z1) or (Z2)=1:(0.01-1000).5. A process of performing a metathesis of nitrile rubber claim 1 , the process comprising the use of the catalyst system of .6. A process of reducing the molecular weight of nitrile rubbers claim 1 , in which nitrile rubber is subjected to a metathesis reaction in the presence of a complex catalyst system of .7. The process of claim 6 , wherein the amount of metathesis catalyst is 1 to 1000 ppm of noble metal claim 6 , based on the employed nitrile rubber.8. The process of claim 6 , wherein the amount of phenolic compound of general formula (Z1) or (Z2) is 0.0001 phr to 5 phr claim 6 , based on the nitrile rubber to be degraded.9. The process of claim 6 , ...

GOLD COMPLEXES

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

Doped carbonaceous materials for photocatalytic removal of pollutants under visible light, making methods and applications of same

A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.

Mixed Catalyst System

This invention relates to a supported catalyst system comprising a first iron based catalyst, a second group 4 metal catalyst, a support material, and an activator; wherein the first catalyst is represented by Formula (I) and the second catalyst is represented by Formula (II): 2. The supported catalyst system of claim 1 , wherein M is Hf or Zr.3. The supported catalyst system of claim 1 , where in Formula (I) claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , R optionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , Roptionally bonds with R claim 1 , and Roptionally bonds with R claim 1 , in each case to independently form a five- claim 1 , six- or seven-membered ring; and{'sup': 1′', '2′', '2′', '3′', '3′', '4′', '4′', '5′', '5′', '6′', '6′', '7′', '7′', '9′', '9′', '10′, 'in Formula (II) for example, R optionally bonds with R, and R optionally bonds with R, R optionally bonds with R, R optionally bonds with R, R optionally bonds with J′, G′ optionally bonds with R, R optionally bonds with R, R optionally bonds with R′, R′ optionally bonds with R, R optionally bonds with R in each case to independently form a five-, six- or seven-membered ring.'}4. The supported catalyst system of claim 1 , wherein the first catalyst is one or more of:bis(2,6-[1-(2,6-dimethylphenylimino)ethyl])pyridineiron dichloride,bis(2,6-[1-(2,4,6-trimethylphenylimino)ethyl)])pyridineiron dichloride,bis(2,6-[1-(2,6-dimethylphenylimino)ethyl]-ethyl])pyridineiron dichloride,2-[1-(2,4,6-trimethylphenylimino)ethyl]-6-[1-(2,4-dichloro-6-methylphenylimino)ethyl]pyridineiron dichloride,2-[1-(2,6-dimethylphenylimino)ethyl]-6-[1-(2-chloro-6-methylphenylimino)ethyl]pyridineiron dichloride ...

NOVEL METAL COMPLEX CATALYSTS AND USES THEREOF

The invention relates to novel metal complexes useful as catalysts in redox reactions (such as, hydrogen (H) production). In particular, the invention provides novel transition metal (e.g., cobalt (Co) or nickel (Ni)) complexes, in which the transition metal is coupled with N,N-Bis(2-pyridinylmethyl)-2,2′-Bipyridine-6-methanamine (DPA-Bpy), 6′-((bis(pyridin-2-ylmethyl)amino)methyl)-N,N-dimethyl-2,2′-bipyridin-6-amine (DPA-ABpy), N,N-bis((isoquinolin-1-yl)methyl)(6-(pyridin-2-yl)pyridin-2-yl)methanamine (DIQ-Bpy), or a derivative thereof. The invention also relates to a method of producing Hfrom an aqueous solution by using the metal complex as a catalyst. In certain embodiments, the invention provides a metal complex of the formulae as described herein. 2. The metal complex of claim 1 , wherein said metal is cobalt.3. The metal complex of claim 2 , wherein Y is chloride.4. The cobalt complex of claim 3 , wherein a is 0; and X is Cl.5. (canceled)6. (canceled)7. (canceled)9. The metal complex of claim 8 , wherein M is Co or Ni.10. The metal complex of claim 9 , wherein R are all H claim 9 , and z is 1.11. (canceled)12. (canceled)14. The metal complex of claim 13 , wherein M is Co claim 13 , Ru claim 13 , Ni claim 13 , or Fe.15. The metal complex of claim 14 , wherein G is DPA-Bpy or DPA-ABpy.16. The metal complex of claim 14 , wherein Y is absent or a water moiety.17. (canceled)18. The metal complex of claim 14 , wherein said metal complex is [Ni(DPA-ABpy)(OH)](BF)or [Co(DPA-ABpy)](PF) claim 14 , or a salt claim 14 , solvate or hydrate thereof.19. A catalyst comprising a metal complex of .20. A process for producing hydrogen from an aqueous solution comprising a step of adding a catalyst of to said aqueous solution.21. The process of claim 20 , further comprising a step of carrying out electrolysis or photolysis on the aqueous solution containing the catalyst.22. (canceled)23. The process of claim 22 , wherein said aqueous solution comprises ascorbic acid.24. ( ...

LIGHT UPCONVERSION MICROCAPSULES

A composition, method, and article of manufacture are disclosed. The composition is a microcapsule that includes a transparent shell encapsulating a mixture comprising light upconversion molecules. The method is a method of forming a microcapsule, which includes obtaining light upconversion molecules, forming an emulsion of the light upconversion molecules and a shell formation solution, and encapsulating the light upconversion molecules in a transparent shell. The article of manufacture comprises the microcapsule. 1. A microcapsule , comprising:a transparent shell encapsulating a mixture, the mixture comprising light upconversion molecules.2. The microcapsule of claim 1 , wherein the light upconversion molecules comprise a molecular sensitizer and a molecular annihilator.3. The microcapsule of claim 1 , wherein the mixture further comprises a non-polar solvent.4. The microcapsule of claim 1 , wherein the transparent shell is a urea-formaldehyde shell.5. The microcapsule of claim 1 , wherein the light upconversion molecules comprise a molecular sensitizer selected from the group consisting of a transition metal complex of a porphyrin and a transition metal complex of a phthalocyanine.6. The microcapsule of claim 1 , wherein the light upconversion molecules comprise a molecular annihilator selected from the group consisting of a furanyldiketopyrrolopyrrole and a perylene.7. A method of forming a microcapsule claim 1 , comprising:obtaining light upconversion molecules;forming an emulsion that includes the light upconversion molecules and a shell formation solution; andencapsulating the light upconversion molecules in a transparent shell.8. The method of claim 7 , wherein the light upconversion molecules comprise a molecular sensitizer and a molecular annihilator.9. The method of claim 8 , further comprising:forming a reaction system that includes the microcapsule, a photocatalyst, and a substrate; andexposing the reaction system to light having sufficient energy to ...

SURFACE-MODIFIED LIGHT UPCONVERSION SILICA PARTICLES

A composition, method, and article of manufacture are disclosed. The composition includes a silica particle with light upconversion molecules bound to its surface. The method includes obtaining silica particles and light upconversion molecules having sidechains with reactive functional groups. The method further includes binding the light upconversion molecules to surfaces of the silica particles. The article of manufacture includes the composition. 1. A composition , comprising:a silica particle; andlight upconversion molecules bound to a surface of the silica particle.2. The composition of claim 1 , wherein the light upconversion molecules comprise molecular sensitizers.3. The composition of claim 1 , wherein the light upconversion molecules comprise molecular annihilators.4. The composition of claim 1 , wherein the light upconversion molecules comprise molecular annihilators and molecular sensitizers.5. The composition of claim 1 , wherein the surface of the silica particle includes a first face and a second face.6. The composition of claim 5 , wherein the light upconversion molecules comprise molecular sensitizers bound to the first face of the silica particle.7. The composition of claim 6 , wherein the light upconversion molecules comprise molecular annihilators bound to the second face of the silica particle.8. A method of forming surface-modified particles claim 6 , comprising:obtaining silica particles;obtaining light upconversion molecules having sidechains with reactive functional groups; andbinding the light upconversion molecules to surfaces of the silica particles.9. The method of claim 8 , wherein the reactive functional groups are silyl groups.10. The method of claim 8 , further comprising forming a reaction environment claim 8 , the reaction environment comprising:the surface-modified particles;a photocatalyst; anda substrate.11. The method of claim 8 , wherein the silica particles are Janus particles.12. The method of claim 8 , wherein the light ...

Catalyst Systems and Polymerization Processes for Using the Same

A catalyst system including the product of the combination of an unbridged Group 4 metallocene compound and a 2,6-bis(imino)pyridyl iron complex is provided. A process for the polymerization of monomers (such as olefin monomers) and a polymer produced therefrom are also provided. 1. An ethylene copolymer composition comprising 90 wt % or more of ethylene derived units and from 6 wt % to 10 wt % Cto Cα-olefin derived units , based on the total weight of the ethylene composition;{'sup': '3', 'wherein the ethylene copolymer composition has density within the range from 0.910 to 0.960 g/cmand a ratio of weight average molecular weight to number-average molecular weight (Mw/Mn) of greater than 3; and'}further wherein the ethylene copolymer composition has one or more of the following properties:a mole-basis reversed comonomer index (RCI,m) within the range from 150 to 500;a comonomer distribution ratio (CDR-2,m) within the range from 1 to 4; and{'sub': 75', '25, 'a composition distribution breadth (T-Tvalue as measured by TREF) within the range from 15 to 50° C.'}2. The ethylene copolymer composition of claim 1 , wherein the Cto Cα-olefin derived units are selected from the group consisting of 1-butene claim 1 , 1-hexene claim 1 , 1-octene claim 1 , and combinations thereof.3. The ethylene copolymer composition of claim 1 , having T-Tvalue as measured by TREF greater than 30° C.4. The ethylene copolymer composition of claim 1 , having both (1) RCI claim 1 ,m within the range from 150 to 500 and (2) CDR-2 claim 1 ,m within the range from 1 to 4.5. The ethylene copolymer composition of claim 1 , further having one or more of the following properties:(a) weight average molecular weight (Mw) within the range from 75,000 to 200,000 g/mol;(b) ratio of z-average molecular weight to weight average molecular weight (Mz/Mw) within the range from 1 to 10; and{'sub': 'vis', '(c) g′greater than 0.9.'}6. The ethylene copolymer composition of claim 5 , having all of the properties (a ...

NANOPARTICLES AND PREPARATION METHOD

The present invention concerns a composite comprising supported nanoclusters, the nanoclusters comprising one or more metal ion-containing compounds, wherein each metal ion-containing compound is a transition metal complex having ligands coordinated to a transition metal ion, the ligands being selected from the group consisting of glyoxime; a glyoxime derivative; salicylaldimine; and a salicylaldimine derivative; and wherein the nanoclusters are spaced across one or more surfaces of a support; a material prepared from the composite by annealing; and solution-based methods for forming the composite and materials. Uses of the metal ion-containing compounds are also described, as are uses of the products as catalysts and adsorbers. 1. A composite comprising supported nanoclusters , the nanoclusters comprising one or more metal ion-containing compounds , wherein each metal ion-containing compound is a transition metal complex having ligands coordinated to a transition metal ion , the ligands being selected from the group consisting of glyoxime; a glyoxime derivative; salicylaldimine; and a salicylaldimine derivative; and wherein the nanoclusters are spaced across one or more surfaces of a support.2. The composite according to claim 1 , wherein the ligands are glyoxime or a derivative thereof claim 1 , preferably having the formula (HO)N═C(R1)-C(R2)=N(OH) claim 1 , wherein R1 and R2 are each independently H claim 1 , hydroxy claim 1 , alkoxy claim 1 , carboxy or optionally substituted alkyl claim 1 , aryl or heteroaryl group claim 1 , or R1 and R2 join together to form a cyclic alkyl.3. The composite according to claim 1 , wherein the support comprises at least one of aluminium oxide claim 1 , cerium oxide claim 1 , zirconium oxide claim 1 , silicon oxide claim 1 , titanium oxide claim 1 , and a zeolite.4. The composite according to claim 1 , wherein the wherein the one or more metal ion-containing compounds of the nanoclusters comprise one or more transition metal ions ...

METATHESIS CATALYSTS AND REACTIONS USING THE CATALYSTS

The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a compound that catalyzes said metathesis reaction such that the molar ratio of said compound to the first or the second olefin is from 1:500 or less, and the conversion of the first or the second olefin to said olefin is at least 50%, characterized in that as compound that catalyzes said metathesis reaction a compound of formula (A) is used: wherein M is Mo or W; Ris aryl, heteroaryl, alkyl, or heteroalkyl; optionally substituted; Rand Rcan be the same or different and are hydrogen, alkyl, alkenyl, heteroalkyl, heteroalkenyl, aryl, or heteroaryl; optionally substituted; Ris alkyl, alkoxy, heteroalkyl, aryl, heteroaryl, silylalkyl, silyloxy, optionally substituted; and Ris a residue R—X—, wherein X═O and Ris aryl, optionally substituted; or X═S and Ris aryl, optionally substituted; or X═O and Ris (R, R, R)Si; wherein R, R, Rare alkyl or phenyl, optionally substituted; or X═O and Ris (R, R, R)C, wherein R, R, Rare independently selected from phenyl, alkyl; optionally substituted; and to the catalysts used in the method. 2. Method of claim 1 , whereinM=Mo or W;{'sup': '1', 'Ris aryl or adamant-1-yl; optionally substituted;'}{'sup': '2', 'sub': 3', '2', '6', '5', '3', '3, 'Ris —C(CH)CHor —C(CH);'}{'sup': '3', 'Ris H;'}{'sup': '5', 'Ris alkoxy, heteroaryl, silyloxy, or aryloxy; optionally substituted; and'}{'sup': 4', '6, 'Ris a residue R—X—, wherein'}{'sup': '6', 'sub': 1', '4', '1', '4, 'X═O and Ris phenyl substituted with up to five substituents independently selected from alkyl, preferably C-Calkyl, such as methyl, isopropyl or t-butyl, alkoxy, preferably C-Calkoxy, phenoxy, phenyl, halogen, optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-(naphthalene-1-yl)-naphthalene-1-yl, optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-phenlynaphthalene- ...

TRANSFER HYDROGENATION OF CYCLOPAMINE ANALOGS

Provided herein is a process for the transfer-hydrogenation of ketone analogs of members of the jervine type of alkaloids, such as cyclopamine. Also provided herein are novel ruthenium transfer-hydrogenation catalysts. 3. The process of wherein the ring carbon atom that is directly attached to the hydroxyl group on the compound of formula (II-AA) has an (S) stereochemical configuration and Ris hydrogen in the β-position.4. The process of claim 1 , wherein the ruthenium transfer-hydrogenation catalyst comprises an amino alcohol ligand.5. The process of claim 4 , wherein the amino alcohol ligand is achiral.7. The process of claim 6 , wherein Rand Rare both —CHand Ris —CHCH.8. The process of claim 1 , wherein the ruthenium transfer-hydrogenation catalyst comprises an optionally substituted benzene ligand.9. The process according to claim 8 , wherein the optionally substituted benzene ligand is selected from benzene claim 8 , mesitylene claim 8 , p-cymene claim 8 , and hexamethylbenzene.10. The process according to claim 9 , wherein the ruthenium transfer-hydrogenation catalyst is generated from (hexamethylbenzene)ruthenium chloride dimer and an achiral amino alcohol.14. The process according to claim 13 , wherein Xis chloro.17. The process of claim 16 , wherein Rand Rare each methyl claim 16 , Ris ethyl claim 16 , each of R claim 16 , R claim 16 , R claim 16 , R claim 16 , R claim 16 , and Ris methyl claim 16 , and Xis Cl.18. The process of claim 1 , wherein the hydrogen donor is an organic alcohol.19. The process of claim 18 , wherein the reducing is carried out in an ether solvent.20. The process of claim 19 , wherein the reducing is carried out at a temperature of about 10° C. to about 40° C.21. The process of claim 19 , wherein the reducing is carried out in the presence of base. This application is a continuation of U.S. patent application Ser. No. 13/232,851, filed Sep. 14, 2011, now allowed, which claims the benefit of U.S. Provisional Patent Application No. 61/ ...

METHOD FOR THE EPOXIDATION OF AN OLEFIN WITH HYDROGEN PEROXIDE

Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase, using a loop reactor with mixing of the liquid phases. The loop reactor comprises a measuring section in which the liquid phases are temporarily separated, at least one pH electrode is arranged in the measuring section in contact with the separated aqueous phase, a pH of the separated aqueous phase is determined with the pH electrode and the pH is maintained in a predetermined range by adding acid or base to the loop reactor. 111-. (canceled)12. A method for the epoxidation of an olefin , comprising continuously reacting the olefin with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst , wherein: i) a measuring section in which the liquid phases are temporarily separated into a separated aqueous phase and a separated organic phase;', 'ii) at least one pH electrode in said measuring section in contact with the separated aqueous phase;, 'a) the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, wherein the loop reactor comprisesb) a pH of the separated aqueous phase is determined with said pH electrode and said pH is maintained in a predetermined range by adding acid or base to the loop reactor.13. The method of claim 12 , wherein the liquid phases are temporarily separated by lowering the flow rate.14. The method of claim 13 , wherein the flow rate is lowered in the measuring section by enlarging the flow cross section.15. The method of claim 12 , wherein the measuring section is located in a side stream to the loop reactor.16. The method of claim 15 , wherein a valve is used for lowering the flow rate or temporarily stopping the flow in the measuring section.17. The method of claim 12 , wherein at ...

PROCESS FOR THE PREPARATION OF 4,5,6-TRICHLOROPICOLINIC ACID

4,5,6-Trichloropicolinic acid is prepared by selectively dechlorinating 3,4,5,6-tetrachloropicolinic acid with zinc and a catalyst prepared from a nickel compound and a bidentate ligand in a polar solvent. 2. The process of claim 1 , wherein the nickel compound is NiCl.6HO.3. The process of claim 1 , wherein the polar solvent is acetone claim 1 , acetonitrile claim 1 , dimethyl sulfoxide (DMSO) claim 1 , ethyl alcohol claim 1 , methyl alcohol claim 1 , isopropyl alcohol (iPrOH) claim 1 , N-methylpyrrolidinone (NMP) claim 1 , tetrahydrofuran (THF) claim 1 , N claim 1 ,N-dimethyl-formamide (DMF) claim 1 , N claim 1 ,N-dimethylacetamide (DMA) claim 1 , hexamethylphosphoramide (HMPA) or sulfolane.4. The process of claim 3 , wherein the polar solvent is methyl alcohol claim 3 , ethyl alcohol claim 3 , iPrOH claim 3 , THF claim 3 , NMP claim 3 , DMF claim 3 , DMA or mixtures thereof.5. The process of or claim 3 , wherein the polar solvent is a mixture of the polar solvent with water.6. The process of claim 4 , wherein the polar solvent is N claim 4 ,N-dimethylformamide.7. The process of claim 5 , wherein the aqueous polar solvent is a mixture from about 75 to about 95 weight percent polar solvent and from about 5 to about 25 weight percent water.8. The process of claim 1 , wherein the bidentate ligand is 6 claim 1 ,6′-dimethyl-2 claim 1 ,2′-bipyridyl claim 1 , 4 claim 1 ,4′-dimethyl-2 claim 1 ,2′-bipyridyl claim 1 , 5-methyl-1 claim 1 ,10-phenanthroline claim 1 , 1 claim 1 ,10-phenanthroline or 2 claim 1 ,2′-bipyridine.9. The process of claim 8 , wherein the bidentate ligand is 2 claim 8 ,2′-bipyridine.10. The process of claim 1 , wherein the zinc is zinc powder (<150 μm) or zinc dust (<10 μm).11. The process of claim 1 , wherein the pH of the solution is neutral or acidic. This application claims the benefit of U.S. Provisional Patent Application Ser. No. 62/033,970 filed Aug. 6, 2014, which is expressly incorporated by reference herein.U.S. Pat. No. 8,609,855 B2 ...

Method of Manufacturing Nitrone Compound

A method of manufacturing nitrone compounds is provided. The method includes: providing a nitro compound; and performing a photoreaction of the nitro compound, a catalyst and an additive under visible light to obtain the nitrone compound. 1. A method of manufacturing nitrone compound , comprising:providing a nitro compound; andperforming a photoreaction of the nitro compound, a catalyst and an additive under visible light to obtain the nitrone compound.2. The method of claim 1 , wherein the catalyst is Ru(bpy)Cl.6HO claim 1 , Ru(bpy)Cl claim 1 , Ru(bpy)(BF) claim 1 , Ru(bpy)(PF) claim 1 , Ir[dF(CF)ppy](dtbbpy)(PF) or Ir(ppy)(dtbbpy)(PF).3. The method of claim 1 , wherein a wavelength of the visible light is within the range of 350 to 700 nm.4. The method of claim 3 , wherein a wavelength of the visible light is within the range of 450 to 460 nm.5. The method of claim 1 , wherein the nitro compound is a second order or third order nitro compound.6. The method of claim 1 , wherein the additive is diisopropylethylamine (DIPEA) claim 1 , diisopropylisobutylamine (DIPIBA) or a derivative of 1 claim 1 ,4-Dihydropyridine (DHP).7. The method of claim 6 , wherein when the additive is diisopropylisobutylamine (DIPIBA) claim 6 , an aldehyde compound is further added in the photoreaction.8. The method of claim 6 , wherein the derivative of 1 claim 6 ,4-Dihydropyridine (DHP) is Hantzsch ester.9. The method of claim 1 , wherein the catalyst is performed a photoredox catalyst reaction in the photoreaction. This application claims priority from Taiwan Patent Application No. 104125714, filed on Aug. 6, 2015, in the Taiwan Intellectual Property Office, the content of which are hereby incorporated by reference in their entirety for all purposes.1. Field of the InventionThe present invention relates to a manufacturing method, in particular with respect to a manufacturing method of manufacturing nitrone compound.2. Description of the Related ArtNitrone compound is a key intermediate for ...

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

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

CHROMIUM COMPOUND, CATALYST SYSTEM INCLUDING THE SAME, AND METHOD FOR TRIMERIZING ETHYLENE USING THE CATALYST SYSTEM

Disclosed herein are a chromium compound represented by Formula 1a or 1c and a catalyst system including the same, exhibiting superior catalytic activity in an olefin trimerization reaction: 1. A chromium compound represented by Formula 1a:{'br': None, 'sub': 3', '2', '3', '2', '3', '2', '2, '{CH(CH)CH(CHCH)CO}Cr(OH)\u2003\u2003[Formula 1a]'}2. A chromium compound represented by Formula 1c:{'br': None, 'sub': 3', '2', '3', '2', '3', '2', '2', '4', '2, '[{CH(CH)CH(CHCH)CO}Cr(OH)].2HO.\u2003\u2003[Formula 1c]'}3. The chromium compound of prepared by the reaction of CH(CH)CH(CHCH)CONa and CrClin the two phases composed of water and hydrocarbon solvents.4. The chromium compound of having IR spectrum of .6. The method of preparing the chromium compound of claim 5 , wherein Xin Formula 6 is Cl and M in Formula 7 is Na.7. The method of preparing the chromium compound of claim 5 , wherein the hydrocarbon solvent is Cto Caliphatic hydrocarbon solvent claim 5 , a Cto Caromatic hydrocarbon solvent or a mixture thereof. Embodiments of the present invention relate to a chromium compound, a catalyst system including the same, and a method of trimerizing ethylene using the catalyst system.In 1994, Philips presented a catalyst system for preparing 1-hexene, etc. by trimerizing olefins, such as ethylene, particularly, a highly active and selective ethylene trimerization catalyst system using a trivalent chromium compound, a pyrrole compound, a non-hydrolyzed aluminum alkyl, and an aromatic hydrocarbon (unsaturated hydrocarbon) (U.S. Pat. No. 5,376,612). Subsequently, based on the catalyst system, 1-hexene has been commercially produced since 2003. Among various trivalent chromium compounds, a catalyst system using tris(2-ethyl hexanoate) chromium (III) (Cr(EH), EH=OCH) exhibited superior catalytic activity. A catalyst system using Cr(EH)has been intensively researched and commercialized.In the case of the catalyst system using Cr(EH), an aromatic hydrocarbon solvent may be prepared ...

Ruthenium-based metathesis catalysts and precursors for their preparation

The invention is directed to ruthenium-based metathesis catalysts of the Hoveyda-Grubbs type. The new N-chelating diarylamino-based ruthenium catalysts described herein are stable in solid state and in solution and reveal rapid initiation behavior. Further, the corresponding N-substituted styrene precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from N-substituted styrene precursors. The new Hoveyda-Grubbs type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are sufficient to convert a wide range of substrates via metathesis reactions.

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

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

Method For Preparing Cocatalyst Compound Using Anhydrous Hydrocarbon Solvent

The present invention relates to a method for preparing a cocatalyst compound using an anhydrous hydrocarbon solvent, and a cocatalyst compound prepared thereby.

Redox Dehydration Coupling Catalysts and Methods Related Thereto

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

Oligomer production method and catalyst

An oligomer production method and a catalyst, the method comprising a step of co-oligomerizing a polymerizable monomer including ethylene and an α-olefin in the presence of a catalyst containing (A) a compound represented by a formula (1), (B) a compound represented by a formula (2), (C) methylaluminoxane and/or a boron compound and (D) an organozine compound and/or an organoaluminun compound other than methylaluminoxane, and an oligomer production method and a catalyst comprising a step of oligomerizing a polymerizable monomer including an olefin in the presence of a catalyst containing a complex of a ligand being a diimine compound represented by a formula (3) and a metal of Group 8 elements, etc.

METHOD FOR PRODUCING NOVEL ORGANOMETALLIC COMPLEX AND AMINE COMPOUND

The purpose of the invention is to provide a novel organometallic compound that can be utilized as a catalyst having high generality, high activity, and excellent functional group selectivity. The invention pertains to a novel organometallic compound represented by general formula (1) that catalyzes a reductive amination reaction. 2. The organometallic compound according to claim 1 , wherein the electron-withdrawing group is —S(═O)—R claim 1 , a 6- to 20-membered aryl group in which a carbon atom may be replaced by a heteroatom claim 1 , —C(═O)—OR claim 1 , —C(═O)—R claim 1 , —C(═O)—NRR claim 1 , —C(═S)—NRR claim 1 , a C1-C20 sulfenyl group or a perfluoroalkyl group claim 1 , in which one or more hydrogen atoms of these groups may be substituted by a substituent W.3. The organometallic compound according to claim 1 , wherein the electron-withdrawing group is —S(═O)—R claim 1 , —C(═O)—R claim 1 , or —C(═O)—NRR claim 1 , in which one or more hydrogen atoms of these groups may be substituted by a substituent W.4. The organometallic compound according to claim 1 , characterized in that Ar is a cyclopentadienyl group in which one or more hydrogen atoms may be substituted by a substituent W claim 1 , and M is iridium or rhodium.5. The organometallic compound according to claim 1 , characterized in that n=0.6. The organometallic compound according to claim 1 , wherein A is a saturated or unsaturated 4- to 6-membered heterocycle having only one nitrogen atom as the ring member heteroatom.7. The organometallic compound according to claim 1 , wherein A is a saturated or unsaturated 4- to 6-membered heterocycle comprising one or more heteroatoms selected from the group consisting of nitrogen atom claim 1 , oxygen atom and sulfur atom claim 1 , in addition to one nitrogen atom.8. The organometallic compound according to claim 1 , wherein A is an aromatic ring.9. The organometallic compound according to claim 1 , wherein an organometallic complex of general formula (1) is an ...

Tetrapeptide Copper Catalysts Capable Of Oxidizing Hydrocarbons At Room Temperature

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

Olefin metathesis catalysts and related methods

The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.

HETERGENOUS CATALYSIS FOR THE ACETIC ACID PRODUCTION BY METHANOL CARBONYLATION

Disclosed is a heterogeneous catalyst for producing acetic acid by carbonylation of methanol. In the heterogeneous catalyst, a rhodium complex ion is ionically bonded to an insoluble catalyst support, and the insoluble catalyst support includes a fluoropolymer having a quaternary pyridine radical alone or in combination with an acetate radical grafted on the surface thereof. According to the disclosure, a fixed-bed bubble column reactor can be easily designed. In addition, a special device for catalyst separation is not required, and thus the device manufacturing cost can be saved, the operating cost can be reduced due to process simplification, and productivity can be greatly increased. 1. A heterogeneous catalyst for producing acetic acid by carbonylation of methanol , wherein a rhodium complex ion is ionically bonded to an insoluble catalyst support , and the insoluble catalyst support includes a fluoropolymer having a quaternary pyridine radical alone or in combination with an acetate radical grafted on a surface thereof.2. The heterogeneous catalyst of claim 1 , wherein grafting the pyridine radical as a ligand on the surface of the fluoropolymer is achieved by diluting vinylpyridine in a solvent to a concentration of 20 wt % to 70 wt % claim 1 , adding Mohr's salt as a polymerization inhibitor thereto claim 1 , and irradiating cobalt gamma rays.3. The heterogeneous catalyst of claim 1 , wherein grafting the pyridine radical and the acetate group as a ligand to the surface of the fluoropolymer is achieved by mixing more than 0 mol % but not more than 35 mol % of vinyl acetate with vinylpyridine to obtain a vinylpyridine/vinyl acetate mixture claim 1 , diluting the vinylpyridine/vinyl acetate mixture in a solvent to a concentration of 20 wt % to 70 wt % claim 1 , adding Mohr's salt as a polymerization inhibitor thereto claim 1 , and irradiating cobalt gamma rays.4. The heterogeneous catalyst of any one of claims 1 , wherein the fluoropolymer for grafting is any ...

ZINC-IMIDAZOLE COMPLEX MIXED CATALYST AND METHOD FOR PRODUCING METHYL N-PHENYL CARBAMATE USING THE SAME

Disclosed is a zinc-imidazole complex mixed catalyst. Also disclosed are a method for preparing the zinc-imidazole complex mixed catalyst and a method for producing a methyl N-phenyl carbamate in high yield with high selectivity in the presence of the catalyst. The zinc-imidazole complex mixed catalyst can be reused due to its high reaction stability. In addition, the use of the zinc-imidazole complex mixed catalyst leads to a marked improvement in the production yield of a methyl N-phenyl carbamate with high selectivity. 2: The method according to claim 1 , wherein claim 1 , in step (a) claim 1 , the zinc precursor is mixed with [the [an]]imidazole precursor in a first solvent and the reaction mixture is reactgd at a temperature of 100 to 150° C. for 12 to 48 hours.3: The method according to claim 2 , wherein the zinc precursor is a zinc salt and the zinc salt is zinc acetate.4: The method according to claim 3 , wherein the imidazole precursor is selected from the group consisting of imidazole claim 3 , 2-chloromethylimidazole claim 3 , imidazole-2-carboxylic acid claim 3 , 2-phenylimidazole claim 3 , benzimidazole claim 3 , 2-methylimidazole claim 3 , and mixtures thereof.5: The method according to claim 4 , wherein the zinc precursor is reacted with the imidazole precursor in a molar ratio of zinc precursor:imidazole precursor of 1:1 to 1:4.6: The method according to claim 5 , wherein claim 5 , in step (b) claim 5 , the reaction mixture is precipitated in a second solvent and the precipitate is collected and dried at a temperature of 180 to 200° C. for 1 to 5 hours.7: The method according to claim 6 , wherein the first solvent and the second solvent are the same as or different from each other and are each independently selected from the group consisting of N claim 6 ,N-dimethylformamide claim 6 , N claim 6 ,N-dimethylacetamide claim 6 , N-methyl-2-pyrrolidone claim 6 , N-ethyl-2-pyrrolidone claim 6 , vinylpyrrolidone claim 6 , 1 claim 6 ,3-dimethyl-2- ...

CATALYSTS AND METHODS FOR FORMING ALKENYL AND ALKYL SUBSTITUTED ARENES

Embodiments of the present disclosure provide for Rh(I) catalysts, methods of making alkenyl substituted arenes (e.g., allyl arene, vinyl arene, and the like), methods of making alkyl substituted arenes, and the like. 1. A composition , comprising:{'sub': 2', '3', '1', '1', '2', '2', 'n', 'm, 'a rhodium (I) catalyst having one of the following formula: LRh(L′)X, LRhX, (LX)Rh(L′), [(L)Rh(μ-X)], or (L)Rh'}{'sub': '2', 'claim-text': two independent and neutral first ligands each coordinated to Rh(I) through a carbon donor, nitrogen donor, a phosphorus donor, an oxygen donor, or a sulfur donor,', 'a neutral bidentate ligand coordinated to Rh(I) through either a carbon donor, nitrogen donor, a phosphorus donor, an oxygen donor, or a sulfur donor, or', 'a combination of the neutral first ligand and the neutral bidentate ligand;, 'wherein Lis selected fromwherein L′ is a neutral second ligand coordinated to Rh(I),wherein X is a mono-anionic group, either coordinated to the metal or not,{'sub': '3', 'sup': 2', '3, 'wherein Lis a tridentate first ligand coordinated to Rh(I) in a κor κfashion through a carbon donor, a nitrogen donor, a phosphorus donor, an oxygen donor, a sulfur donor, or a combination thereof,'}{'sub': 1', '1, 'sup': 2', '3, 'wherein LXis a monoanionic bidentate or tridentate second ligand coordinated to Rh(I) in a κor κfashion through a carbon donor, a nitrogen donor, a phosphorus donor, an oxygen donor, a sulfur donor, or a combination thereof,'}wherein L is a neutral, two-electron donating third ligand coordinated to Rh(I), andwherein m is 1 to 4 and n is 3(m).2. The composition of claim 1 , wherein Lis a selected from two independent and neutral ligands coordinated to the Rh(I) claim 1 , wherein each ligand is selected from the group consisting of: an amine claim 1 , a pyridine claim 1 , a phosphine claim 1 , a phosphite claim 1 , an ether claim 1 , a ketone claim 1 , and an imines.3. The composition of claim 1 , wherein Lis the neutral bidentate ligand ...

MANUFACTURING A BASE STOCK FROM ETHANOL

Methods and a system for manufacturing a base stock from an ethanol stream are provided. An example method includes dehydrating an ethanol stream to form an impure ethylene stream, recovering an ethylene stream from the impure ethylene stream, and oligomerizing the ethylene stream to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and blended with the ethylene stream prior to the oligomerization. A heavy olefinic stream is distilled from the raw oligomer stream and hydro-processed to form a hydro-processed stream. The hydro-processed stream is distilled to form the base stock. 1. A system for manufacturing a base stock from an ethanol stream , comprising:a dehydration reactor configured to form an impure ethylene stream from the ethanol stream;a recovery system configured to purify the impure ethylene stream to form an ethylene stream;an oligomerization reactor configured to oligomerize the ethylene stream to form a raw oligomer stream; a light olefinic stream, wherein the light olefinic stream is blended with the ethylene stream to form a blended stream, and the blended stream is provided to the oligomerization reactor;', 'an intermediate olefinic stream; and', 'a heavy olefinic stream;, 'a distillation column configured to separate the raw oligomer stream intoa hydro-processing system configured to hydroprocess the heavy olefinic stream to form a hydroprocessed stream; anda product distillation column configured to separate the hydroprocessed stream to form the base stock.2. The system of claim 1 , comprising a dimerization reactor configured to dimerize the intermediate olefinic stream and return a dimerized stream to the distillation column.3. The system of claim 1 , comprising an alkylation reactor configured to alkylate the intermediate olefinic stream and provide an alkylated stream to an alkylation distillation column.4. The system of claim 3 , wherein the alkylation distillation column is configured to separate ...

MANUFACTURING A BASE STOCK

Systems and a method for manufacturing a base stock from a light gas stream are provided. An example method includes oxidizing the light gas stream to form a raw ethylene stream. Water is removed from the raw ethylene stream, and carbon monoxide in the raw ethylene stream is oxidized. Carbon dioxide is separated from the raw ethylene stream, and the raw ethylene stream is oligomerized to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and a light alpha olefin is recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. the hydro-processed stream is distilled to form the base stock. 1. A system for manufacturing a base stock from a light gas stream , comprising:an oxidation reactor configured to form a raw ethylene stream from the light gas stream;a separation system configured to remove water from the raw ethylene stream;a catalytic reactor configured to oxidize carbon monoxide in the raw ethylene stream;a removal system configured to remove carbon dioxide from the raw ethylene stream;an oligomerization reactor configured to oligomerize the raw ethylene stream to form an oligomer stream; a light olefinic stream, wherein the distillation column is configured to recover a light alpha-olefin;', 'an intermediate olefinic stream; and', 'a heavy olefinic stream;, 'a distillation column configured to separate the oligomer stream intoa hydro-processing reactor configured to hydro-process the heavy olefinic stream to form a hydro-processed stream; anda product distillation column configured to separate the hydro-processed stream to form the base stock.2. The system of claim 1 , wherein the oxidation reactor is configured to perform an oxidative coupling of methane (OCM).3. The system of claim 1 , wherein the oxidation reactor is configured to perform an oxidative dehydration of ethane (ODE).4. The ...

MANUFACTURING HYDROCARBONS

Systems and a method for manufacturing a base stock from a hydrocarbon stream are provided. An example method includes cracking the hydrocarbon stream to form a raw product stream, separating an ethylene stream from the raw product stream, and oligomerizing the ethylene stream to form a raw oligomer stream. A Light olefinic stream is distilled from the raw oligomer stream and oligomerized the light olefinic stream with the ethylene stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is to form a hydro-processed and distilled to form the base stock. 1. A system for manufacturing a base stock from a hydrocarbon stream , comprising:a steam cracker configured to form a raw product stream from the hydrocarbon stream;a purification system configured to separate an ethylene stream from the raw product stream;an oligomerization reactor configured to oligomerize the ethylene stream to form a raw oligomer stream;a distillation column configured to separate the raw oligomer stream into:a light olefinic stream, wherein the distillation column is configured to blend the light olefinic stream with the ethylene stream provided to the oligomerization reactor;an intermediate olefinic stream; anda heavy olefinic stream;a hydro-processing reactor configured to hydro-process the heavy olefinic stream to form a hydro-processed stream; anda product distillation column configured to separate the hydro-processed stream to form the base stock.2. The system of claim 1 , comprising a dimerization reactor configured to dimerize the intermediate olefinic stream and return a dimerized stream to the distillation column.3. The system of claim 1 , comprising an alkylation reactor configured to alkylate the intermediate olefinic stream and provide an alkylated stream to an alkylation distillation column.4. The system of claim 3 , wherein the alkylation distillation column is configured to separate an unreacted olefin stream from the alkylated stream ...

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

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

PROCESSSES USING MULTIFUNCTIONAL CATALYSTS

The present invention is directed to processes for catalyzing two or more chemical reactions with a multifunctional catalyst in a reaction vessel. The processes include steps for introducing one or more reagents to a reaction vessel containing a multifunctional catalyst; contacting the one or more reagents with a first portion of the multifunctional catalyst to produce an intermediate; contacting the intermediate with a second portion of the multifunctional catalyst to produce a product; and removing the product from the reaction vessel. In certain embodiments, the multifunctional catalyst may have a first portion with carbonylation functionality for catalyzing the production of a beta-lactone intermediate from an epoxide reagent and a carbon monoxide reagent. In certain embodiments, the multifunctional catalyst may have a second portion with a functionality suitable for polymerization, co-polymerization, and/or modification of a beta-lactone intermediate. In preferred embodiments, the first portion and second portion are bonded to a heterogenous support. 1. A process for producing a product with a multifunctional catalyst comprising:a. introducing at least an epoxide reagent and a carbon monoxide reagent to a reaction vessel containing a multifunctional catalyst;b. contacting a first portion of the multifunctional catalyst having carbonylation functionality with at least the epoxide reagent and carbon monoxide reagent to produce one or more intermediates;c. contacting a second portion of the multifunctional catalyst with the one or more intermediates to produce a product;d. removing the product from the reaction vessel.2. The process from claim 1 , wherein the at least one epoxide reagent includes an ethylene oxide reagent.3. The process from claim 1 , wherein the one or more intermediates includes a beta-lactone intermediate.4. The process from claim 1 , wherein the one or more intermediates includes a succinic anhydride intermediate.5. The process from claim 1 , ...

CATALYSTS FOR EPOXIDE CARBONYLATION

The present invention encompasses catalysts for the carbonylation of heterocycles such as ethylene oxide, as well as methods for their use. The catalysts feature Lewis acidic metal complexes having one or more tethered metal-coordinating groups in combination with at least one metal carbonyl species. In preferred embodiments, the inventive catalysts have improved stability when subjected to product separation conditions in continuous ethylene oxide carbonylation processes. 1. A metal complex for the carbonylation of heterocycles comprising the combination of:i) one or more tethered metal-coordinating moieties, where each metal-coordinating moiety comprises a linker and 1 to 4 metal-coordinating groups;ii) one or more ligands to which the one or more metal-coordinating moieties are covalently tethered, wherein the one or more ligands are coordinated to one or two metal atoms; andiii) at least one metal carbonyl species associated with a metal-coordinating moiety present on the metal complex.2. The metal complex of claim 1 , wherein the one or more ligands to which at least one metal-coordinating moiety is covalently tethered is selected from the group consisting of porphryin ligands and salen ligands.3. The metal complex of claim 2 , wherein metal complex comprises a salen or porphyrin complex of a metal selected from the group consisting of: Zn(II) claim 2 , Cu(II) claim 2 , Mn(II) claim 2 , Co(II) claim 2 , Ru(II) claim 2 , Fe(II) claim 2 , Co(II) claim 2 , Rh(II) claim 2 , Ni(II) claim 2 , Pd(II) claim 2 , Mg(II) claim 2 , Al(III) claim 2 , Cr(III) claim 2 , Fe(III) claim 2 , Co(III) claim 2 , Ti(III) claim 2 , In(III) claim 2 , Ga(III) claim 2 , Mn(III).4. The metal complex of claim 2 , wherein the metal complex comprises a salen or porphyrin complex of aluminum.5. The metal complex of claim 2 , wherein the metal complex comprises a salen or porphyrin complex of chromium.6. The metal complex of claim 1 , wherein a metal-coordinating moiety comprises one or more ...

Porphyrazines as efficient, catalytic and scalable method to produce chlorine dioxide

Methods, kits, cartridges, and compounds related to generating chlorine dioxide by exposing ClO 2 − to at least one of an iron porphyrin catalyst or an iron porphyrazine catalyst are described.

LIGHT DRIVEN METAL PINCER PHOTOCATALYSTS FOR CARBON DIOXIDE REDUCTION TO CARBON MONOXIDE

Disclosed are N-heterocyclic carbene (NHC) and 4-pyridinol-derived pincer ligands and metal complexes containing these ligands. These compounds can be used to photocatalyticaly reduce COto CO. 2. The compound of claim 1 , wherein Ris OH claim 1 , O claim 1 , halogen claim 1 , or optionally substituted amine claim 1 , alkyl claim 1 , aryl claim 1 , alkoxyl claim 1 , or aryloxyl.3. The compound of claim 1 , wherein Ris alkoxyl.4. The compound of claim 1 , wherein Rand Rcombine together with the atoms to which they are attached to form an aryl or heteroaryl.5. The compound of claim 1 , wherein Rand Rare both hydrogen.6. The compound of claim 1 , wherein M is Ni claim 1 , Ru claim 1 , Fe claim 1 , Co claim 1 , or Ir.7. The compound of claim 1 , wherein at least one L is Cl claim 1 , Br claim 1 , CHCN claim 1 , DMF claim 1 , HO claim 1 , bipyridine or phenylpyridine.9. The compound of claim 1 , further comprising one or more counteranions selected from I claim 1 , Br claim 1 , CFCOO claim 1 , BF claim 1 , or PF.11. The catalytic system of claim 10 , further comprising a photosensitizer.12. The catalytic system of claim 10 , wherein the photosensitizer is Ru(bpy) claim 10 , Ir(ppy) claim 10 , Cu(dmbpy) claim 10 , Os(bpy) claim 10 , Ru(phen) claim 10 , or a derivative or a mixture thereof.13. The catalytic system of claim 10 , wherein the system does not include a photosensitizer.14. The catalytic system of claim 13 , wherein Rand Rcombine together with the atoms to which they are attached to form an aryl or heteroaryl.15. The catalytic system of claim 10 , wherein the electron donor is an amine or alcohol.16. The catalytic system of claim 15 , wherein the electron donor is trimethylamine claim 15 , triethanolamine (TEOA) claim 15 , (1 claim 15 ,3-dimethyl-2-phenyl-2 claim 15 ,3-dihydro-1H-benzo[d]imidazole) (BIH) claim 15 , 1-benzyl-1 claim 15 ,4-dihydropyridine-3-carboxamide (BNAH); 1-(4-methoxybenzyl)-1 claim 15 ,4-dihydropyridine-3-carboxamide (BNAH-OMe) claim 15 , 5-( ...

Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation

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

METHOD FOR PRODUCING ESTER COMPOUND

A method for producing an ester compound including reacting a compound having at least one cyclic structure of a norbornene ring and a norbornadiene ring with an alcohol and carbon monoxide by using a palladium catalyst and an oxidizing agent, to thereby introduce ester groups to carbon atoms forming a double bond in the cyclic structure and obtain the ester compound, wherein the palladium catalyst comprises a palladium complex having a bipyridyl as a ligand. 1. A method for producing an ester compound , comprising:reacting a compound having at least one cyclic structure of a norbornene ring and a norbornadiene ring with an alcohol and carbon monoxide by using a palladium catalyst and an oxidizing agent, to thereby introduce ester groups to carbon atoms forming a double bond in the cyclic structure and obtain the ester compound, whereinthe palladium catalyst comprises a palladium complex having a bipyridyl as a ligand.2. The method for producing an ester compound according to claim 1 , whereinoxygen is used as the oxidizing agent.3. The method for producing an ester compound according to claim 2 , whereina chlorine-containing compound, a copper compound other than a chloride, and a manganese compound other than a chloride are used in combination with the oxidizing agent.4. The method for producing an ester compound according to claim 2 , whereinmanganese chloride, copper acetate, and manganese acetate are used in combination with the oxidizing agent. The present invention relates to a method for producing an ester compound.Conventionally, as a method for obtaining an ester compound, a method (a method utilizing so-called the oxidative alkoxycarbonylation reaction (esterification reaction)) has been known in which a norbornene-based compound having a carbon-carbon double bond is reacted with an alcohol and carbon monoxide by using a palladium catalyst to thereby introduce (add) ester groups to the carbon atoms forming the double bond and obtain an ester compound.For ...

Metal-Metal Bonded Ammonia Oxidation Catalysts

Methods and catalysts for oxidizing ammonia to nitrogen are described. Specifically, diruthenium complexes that spontaneously catalyze this reaction are disclosed. Accordingly, the disclosed methods and catalysts can be used in various electrochemical cell-based energy storage and energy production applications that could form the basis for a potential nitrogen economy.

ZWITTERION-RUTHENIUM COMPLEX FOR CATALYTIC AEROBIC OXIDATION REACTIONS

Zwitterion ligand metal complexes and methods of aerobic oxidation using a zwitterion ligand metal complex are provided. The zwitterion ligand metal complexes can include a transition metal salt and a zwitterion ligand, which can comprise a non-conjugated amide anion-phosphonium cation, an amide anion-ammonium cation, or an iminium cation. The methods of aerobic oxidation can include combining the zwitterion ligand metal complex with an oxidizable compound and molecular oxygen to allow the isolation of an oxidized compound from the oxidizable compound. 1. A zwitterion ligand metal complex , comprising:a transition metal salt; anda zwitterion ligand,wherein the zwitterion ligand comprises a non-conjugated amide anion-phosphonium cation or an amide anion-iminium cation.2. The zwitterion ligand metal complex according to claim 1 , wherein the amide anion is a sulfonic amide anion.3. The zwitterion ligand metal complex according to claim 2 , wherein the sulfonic amide anion is a tosylate amide anion.4. The zwitterion ligand metal complex according to claim 1 , wherein the iminium cation is the iminium of 4-pyrrolidinopyridine.5. The zwitterion ligand metal complex according to claim 1 , wherein the phosphonium cation is the phosphonium ion of a trialkylphosphine.6. The zwitterion ligand metal complex according to claim 1 , wherein the zwitterion ligand is a ring-opening product of a strained cyclic amide.7. The zwitterion ligand metal complex according to claim 6 , wherein the strained cyclic amide is an aziridine amide.8. The zwitterion ligand metal complex according to claim 7 , wherein the aziridine amide is cyclohexene imine amide.9. The zwitterion ligand metal complex according to claim 6 , wherein the strained cyclic amide is a sulfonic acid amide.10. The zwitterion ligand metal complex according to claim 9 , wherein the sulfonic acid amide is an aromatic sulfonic amide.11. The zwitterion ligand metal complex according to claim 10 , wherein the aromatic sulfonic ...

Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation

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

METHOD OF CONVERTING A NITRILE FUNCTIONAL GROUP INTO A HYDROXAMIC FUNCTIONAL GROUP BY USING A PEROXOCOBALT COMPLEX AT ROOM TEMPERATURE AND NORMAL PRESSURE

The method of the present invention for converting a nitrile functional group into a hydroxamic acid functional group can be easily performed at room temperature and under normal pressure by using a peroxocobalt complex. The final hydroxamic acid functional group produced through the intermediate Hydroximatocobalt (III) compound or the derivative comprising the same has been known to be able to inhibit the growth of cancer cells, so that the conversion method of the present invention can be applied to the preparation of a pro-drug for anticancer treatment. 2. The method according to claim 1 , wherein the Rand Rabove are independently t-butyl or cyclohexyl.4. The method according to claim 3 , wherein the aliphatic hydrocarbon group is straight Calkyl claim 3 , branched Calkyl claim 3 , substituted Ccycloalkyl claim 3 , or unsubstituted Ccycloalkyl claim 3 , and wherein the substituted Ccycloalkyl is a Ccycloalkyl substituted with one or more substituents claim 3 , wherein the one or more substituents are halogen claim 3 , —OH claim 3 , —CN claim 3 , —NO claim 3 , straight Calkyl claim 3 , branched Calkyl straight Calkoxy or branched Calkoxy; and{'sub': '6-10', 'wherein the aromatic hydrocarbon group is substituted or unsubstituted Caryl, and'}{'sub': 6-10', '6-10', '2', '1-5', '1-5', '1-5', '1-5, 'wherein the substituted Caryl is Caryl substituted with one or more substituents, wherein the one or more substituents are halogen, —OH, —CN, —NO, straight Calkyl, branched Calkyl, straight Calkoxy, or branched Calkoxy.'}5. The method according to claim 3 , wherein the aliphatic hydrocarbon group is straight Calkyl claim 3 , branched Calkyl claim 3 , substituted Ccycloalkyl claim 3 , or unsubstituted Ccycloalkyl claim 3 , and wherein the substituted Ccycloalkyl is Ccycloalkyl substituted with one or more substituents claim 3 , wherein the one or more substituents are straight Calkyl claim 3 , branched Calkyl claim 3 , straight Calkoxy claim 3 , or branched Calkoxy; and ...

IMMOBILIZED METATHESIS TUNGSTEN CATALYSTS AND USE THEREOF IN OLEFIN METATHESIS

Compound of formula (I) wherein M is W; Ris H, aryl, heteroaryl, alkyl, or heteroalkyl, optionally substituted, respectively; Rand Rcan be the same or different and are alkyl, alkenyl, heteroalkyl, heteroalkenyl, aryl, or heteroaryl, optionally substituted, respectively, or hydrogen; Ris a residue R—X—, wherein Ris alkyl, aryl, heteroalkyl, heteroaryl, optionally substituted, respectively; (R, R, R)Si; wherein R, R, Rare independently alkyl, alkoxy, phenyl or phenoxy, optionally substituted, respectively; (R, R, R)C, wherein R, R, Rare independently phenyl, alkyl, optionally substituted, respectively; X═O, S, or NR, wherein Ris H; or alkyl or aryl, optionally substituted, respectively; or Ris R—CO—NR, wherein Rand NRhave the meaning as defined above, or wherein Rand Rtaken together form a carbon chain having from 2 to 6 carbon atoms; Ris a 4 to 8 membered N-containing carbon ring, wherein N is linked to M; and Ris a residue O—Si(O—), and represents silica to which M is linked forming a M-O—Si(O—)moiety, preferably wherein silica is comprised in a solid support; under the proviso that a compound in which R=2,6-diisopropylphenyl, Rdimethylpyrrol-1-yl, R=tBu, and R═H is excluded. 2. Compound of claim 1 , wherein{'sup': '1', 'sub': 1', '4', '1', '4', '3, 'Ris aryl or adamant-1-yl, optionally substituted, respectively; preferably wherein aryl is phenyl or naphthyl, or phenyl or naphthyl substituted with up to five substituents independently selected from C-Calkyl, C-Calkoxy, CF, F, Cl, Br; or phenyl or phenoxy, optionally substituted, respectively;'}{'sup': '2', 'sub': 3', '2', '6', '5', '3', '3, 'Ris —C(CH)CHor —C(CH);'}{'sup': '3', 'Ris H;'}{'sup': 5', '6, 'claim-text': [{'sup': '6', 'sub': 1', '4', '1', '4, 'X═O and Ris phenyl or phenyl substituted with up to five substituents independently selected from alkyl, preferably C-Calkyl, such as methyl, isopropyl or t-butyl; alkoxy, preferably C-Calkoxy; phenoxy, phenyl, optionally substituted, respectively; or halogen; or ...

CATALYST FOR SYNTHESIZING METHANOL OR ITS PRECURSOR, METHOD FOR PREPARING THE CATALYST AND METHOD FOR PRODUCING METHANOL OR ITS PRECURSOR USING THE CATALYST

Disclosed is a novel catalyst having amine ligands for synthesizing methanol or its precursor. When the catalyst is allowed to react with an alkane in the presence of an acid, at least one C—H bond of the alkane is catalytically oxidized. Therefore, the catalyst is suitable for use in forming an alkyl ester from an alkane. 2. The catalyst according to claim 1 , wherein the catalyst has the structure of Formula 1 wherein R claim 1 , R′ claim 1 , R claim 1 , and R′ are the same as or different from each other and are each independently hydrogen or a C-Calkyl group claim 1 , X and X′ are the same as or different from each other and are each independently selected from hydrogen claim 1 , C-Calkyl groups claim 1 , halogen groups claim 1 , C-Calkoxy groups claim 1 , a nitro group claim 1 , a carboxyl group claim 1 , and a sulfonic acid group (—SOH) claim 1 , and Y claim 1 , Y′ claim 1 , Y claim 1 , and Y′ are the same as or different from each other and are each independently hydrogen or a C-Calkyl group.3. The catalyst according to claim 2 , wherein R claim 2 , R′ claim 2 , R claim 2 , and R′ are the same as or different from each other and are each independently hydrogen or a methyl group claim 2 , X and X′ are the same as or different from each other and are each independently selected from hydrogen claim 2 , a methyl group claim 2 , halogen groups claim 2 , a methoxy group claim 2 , a nitro group claim 2 , a carboxyl group claim 2 , and a sulfonic acid group (—SOH) claim 2 , and Y claim 2 , Y′ claim 2 , Y claim 2 , and Y′ are the same as or different from each other and are each independently hydrogen or a methyl group.4. The catalyst according to claim 2 , wherein R claim 2 , R′ claim 2 , R claim 2 , and R′ are all hydrogen claim 2 , X and X′ are the same and are selected from hydrogen claim 2 , C-Calkyl groups claim 2 , halogen groups claim 2 , C-Calkoxy groups claim 2 , a nitro group claim 2 , a carboxyl group claim 2 , and a sulfonic acid group (—SOH) claim 2 , ...

CONFINED PORPHYRIN CO(II) AND PREPARATION METHOD AND APPLICATION THEREOF

A confined porphyrin Co(II), which is prepared by the following method: Equimolar amounts of aromatic aldehyde and pyrrole are condensed under acidic conditions to synthesize phenyl porphyrin compounds; the phenyl porphyrin compounds are metallized in a chloroform-methanol solution to obtain porphyrin Cu(II), which is brominated and demetallized to obtain confined porphyrin; the confined porphyrin is stirred and refluxed in a methanol solution for 12.0-24.0 h to obtain confined porphyrin Co(II). Its application is as follows: The confined porphyrin Co(II) is dissolved in cycloalkanes; the reaction system is sealed, and heated to 100 to 130° C. with stirring, to which oxygen is introduced to 0.2 to 3.0 MPa; the reaction is carried out for 3.0 to 24.0 h with stirring with the set temperature and oxygen pressure being maintained; and then the reaction solution is subjected to post-treatment to obtain the products. 2. A method for preparing the confined porphyrin Co(II) according to claim 1 , wherein the preparation method is as follows:Equimolar amounts of aromatic aldehyde and pyrrole are condensed under acidic conditions to synthesize phenyl porphyrin compounds; porphyrin ligands are dissolved in chloroform, to which a methanol solution of anhydrous copper (II) acetate is added, stirred at reflux for 3.0-8.0 h, cooled to room temperature, and filtered with suction to afford a mother liquor, which is desolventized under reduced pressure to obtain porphyrin Cu(II); the porphyrin Cu(II) is dissolved in chloroform, to which liquid bromine is added dropwise and stirred at room temperature for 24.0-36.0 h, which is quenched with a saturated sodium thiosulfate solution after the completion of reaction, wherein liquid separation is performed by extraction with chloroform and water, and the organic phase in the lower layer is dried over anhydrous sodium sulfate, filtered with suction, and desolventized under reduced pressure to obtain confined porphyrin Cu(II); the confined ...

Method for producing carbonyl compound

To provide a production method for suppressing the reduction in production rate of a carbonyl compound due to transferring a noble metal component into liquid phase. A method for producing a carbonyl compound, including: a reaction step of reacting a carbonylation raw material with CO in liquid phase including a solid catalyst having noble metal complex on a resin carrier containing quaternized nitrogen to produce a carbonyl compound; a distillation step of distilling a reaction product liquid to recover gas phase distillate including the carbonyl compound; and a circulation step of circulating a bottom product from the distillation to reaction step. After part of the bottom product contacts with an acidic cation-exchange resin to remove nitrogen compound, liquid having higher moisture concentration than the bottom product contacts with the resin to extract noble metal complex captured by oligomer adsorbing the resin, and the complex is returned to the reaction step.

HETEROGENEOUS CATALYSTS, AND USES THEREOF

Provided herein are heterogeneous catalysts suitable for use in carbonylation reactions, including the production of acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production may involve various unit operations, including, for example: a beta-propiolactone production system configured to produce beta-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system configured to produce polypropiolactone from beta-propiolactone; and an acrylic acid production system configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone. 1. A compound , comprising:a solid support;at least one ligand coordinated to a metal atom to form a metal complex;at least one anionic metal carbonyl moiety coordinated to the metal complex; andat least one linker moiety covalently tethering the ligand to the solid support.2. The compound of claim 1 , wherein the at least one ligand is a porphyrin ligand or a salen ligand.3. The compound of claim 1 , wherein the at least one anionic metal carbonyl moiety is a cobalt carbonyl moiety.4. The compound of claim 2 , wherein the at least one anionic metal carbonyl moiety is [Co(CO)].5. The compound of claim 1 , wherein the at least one linker moiety comprises a sulfonate moiety or an aminosiloxane moiety.6. (canceled)7. The compound of claim 1 , wherein the solid support comprises silica/alumina claim 1 , pyrogenic silica claim 1 , alumina claim 1 , carbon claim 1 , clay claim 1 , silica microbeads claim 1 , magnesia claim 1 , titania claim 1 , zirconia claim 1 , zincate claim 1 , or microporous zeolite claim 1 , or any combination thereof.8. The compound of claim 1 , wherein the solid support comprises silica claim 1 , wherein the silica has a surface comprising silanols.9. The compound of claim 1 , wherein the at least one linker moiety comprises a sulfonate moiety.10. The compound of claim 9 , wherein the solid support comprises silica claim 9 , and wherein ...

DUAL SITE CATALYST FOR MILD, SELECTIVE NITRILE REDUCTION

A ruthenium bis(pyrazolyl)borate scaffold that enables cooperative reduction reactivity in which boron and ruthenium centers work in concert to effect selective nitrile reduction is provided. The pre-catalyst compound [κ-(1-pz)HB(N═CHCH)]Ru(cymene) TfO (pz=pyrazolyl) was synthesized using readily-available materials through a straightforward route, thus making it an appealing catalyst for a number of reactions.

Method for producing optically active tetrahydroquinolines

Provided are a novel chiral iridium(III) complex; and a method for producing optically active 2-substituted-1,2,3,4-tetrahydroquinolines from 2-substituted-quinolines with the use of the chiral iridium(III) complex through a more economical and easy production process. The disclosed method for producing optically active 2-substituted-1,2,3,4-tetrahydroquinolines comprises reducing a quinoline compound represented by formula [I]: in the presence of a hydrogen donor compound and an iridium (III) complex having a chiral prolinamide compound as a ligand to give an optically active 2-substituted-1,2,3,4-tetrahydroquinoline represented by formula [II]:

HYDROGEN GENERATION FROM FORMIC ACID CATALYZED BY A METAL COMPLEX UNDER AMINE-FREE AND AQUEOUS CONDITIONS

The present invention provides a class of catalyst compounds that can safely and effectively release hydrogen gas from a chemical substrate without producing either noxious byproducts or byproducts that will deactivate the catalyst. The present invention provides catalysts used to produce hydrogen that has a satisfactory and sufficient lifespan (measured by turnover number (TON)), that has stability in the presence of moisture, air, acid, or impurities, promote a rapid reaction rate, and remain stable under the reaction conditions required for an effective hydrogen production system. Described herein are compounds for use as catalysts, as well as methods for producing hydrogen from formic acid and/or a formate using the disclosed catalysts. The methods include contacting formic acid and/or a formate with a catalyst as described herein, as well as methods of producing formic acid and/or a formate using the disclosed catalyst and methods for generating electricity using the catalysts described herein. 117-. (canceled)20. The compound of claim 19 , wherein the metal or the metal ion comprises ruthenium (Ru) or iron (Fe).21. The compound of claim 19 , wherein R claim 19 , R claim 19 , R claim 19 , R claim 19 , R claim 19 , and Rare each hydrogen.22. The compound of claim 19 , wherein L is a substituted aryl.23. The compound of claim 22 , wherein L is p-cymene.28. The method of claim 27 , wherein the one or more additional gases comprises carbon dioxide and is substantially free or free from carbon monoxide.29. The method of claim 27 , wherein the formate comprises sodium formate claim 27 , potassium formate claim 27 , or lithium formate.30. The method of claim 27 , wherein the contacting step is performed in the presence of one or more solvents claim 27 , said one or more solvents being substantially free or free from organic solvents.31. The method of claim 30 , wherein the one or more solvent is selected from an aqueous solvent claim 30 , water claim 30 , methanol ...

SELECTIVE REDUCTION OF ESTERS TO ALCOHOLS

The present invention relates to a selective reduction of esters to their corresponding alcohols. 2. Process according to claim 1 , wherein the process is carried out in the presence of at least one base.3. Process according to claim 1 , wherein the process is carried out in the presence of at least one base of formula (VIII){'br': None, 'sup': '1', 'sub': 1', '5, 'M(OC—Calkyl)\u2003\u2003(VIII),'}{'sup': '1', 'wherein Mis an alkali metal, is used.'}4. Process according to claim 1 , wherein the process is carried out in the presence of at least one base of formula (VIII′) claim 1 ,{'br': None, 'sup': '1', 'sub': 3', '5, 'M(OC—Calkyl)\u2003\u2003(VIII′)'}wherein{'sup': '1', 'Mis Li, Na or K.'}5. Process according to claim 1 , wherein the process is carried out in the presence of at least one base selected form the group consisting of KOtBu claim 1 , NaOtBu and LiOtBu.8. Process according to claim 1 , whereinthe catalyst of formula (III) is used in an amount of 0.001-0.5 mol-% (based on the number of moles of the compounds of formula (I)).9. Process according to claim 1 , wherein the reduction is a transfer hydrogenation.10. Process according to claim 1 , wherein the process is carried out with Hgas.11. Process according to claim 10 , wherein the process is carried out at a pressure of 10-50 bar.12. Process according to claim 1 , wherein the process is carried out at a temperature of 30-150° C. The present invention relates to a selective reduction of esters to their corresponding alcohols.Reduction of an ester into the corresponding alcohol is a fundamental and very important reaction in organic chemistry, and is used in a large number of chemical processes. The obtained alcohols are used as such or are important intermediates in further chemical processes.To reduce such esters, usually harsh reaction conditions have to be applied.Furthermore, the reduction of esters usually requests the use of highly reactive reducing agents such as LiAIHor NaBH, which are not easy ...

NOVEL LINEAR ALPHA-OLEFIN CATALYSTS AND PREPARATION AND USE THEREOF

The present invention relates to a novel linear a-olefin catalyst composition, and preparation and use thereof. The catalyst composition includes a main catalyst and a co-catalyst, wherein the main catalyst is an imino-based iron coordination compound, and the co-catalyst is a mixture of methylaluminoxane, triisobutylaluminum, and borane or GaCl. The catalyst composition can be used to catalyze ethylene oligomerization to produce linear α-olefins having a selectivity of greater than 96%, carbon distribution between C4-C28 with the component of C6-C20 being greater than 75%. The catalyst of the invention is stable in structure and can be used for ethylene oligomerization with high catalytic efficiency. The method of the invention has the advantages of relatively convenient in operation, readily available of raw materials, high yield, low costs, less pollution and easy for industrial production. 3. The catalyst of claim 2 , wherein the main catalyst has formula (IA) claim 2 , and is obtained by reacting 2 claim 2 ,6-diacetyl-pyridine phenalene with substituted aniline.4. The catalyst of claim 2 , wherein the main catalyst has formula (IB) claim 2 , and is obtained by reacting 2-acetyl-6-methylamino with substituted aniline.5. The catalyst of claim 2 , wherein the main catalyst has formula (IC) claim 2 , and is obtained by reacting 9 claim 2 ,10-dihydrobenzo[b][1 claim 2 ,10]phenanthroline-11(8H)-one with substituted aniline claim 2 , wherein the 9 claim 2 ,10-dihydrobenzo[b][1 claim 2 ,10]phenanthroline-11(8H)-one is prepared from [1 claim 2 ,10] phenanthroline in multiple steps.6. The catalyst of claim 1 , wherein the phenyl group is mono- claim 1 , di- or tri-substituted by C1-C4 alkyl claim 1 , and the phenyl group is selected from 2-methylphenyl claim 1 , 4-methylphenyl claim 1 , 2 claim 1 ,4-dimethylphenyl claim 1 , 2 claim 1 ,6-dimethylphenyl claim 1 , 2 claim 1 ,4 claim 1 ,6-trimethylphenyl claim 1 , 2-ethylphenyl claim 1 , 4-ethylphenyl claim 1 , 2 claim 1 ,4- ...

Electroless metallization of dielectrics with alkaline stable pyrazine derivative containing catalysts

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

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

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

METHODS FOR FORMING ARYL CARBON-NITROGEN BONDS USING LIGHT AND PHOTOREACTORS USEFUL FOR CONDUCTING SUCH REACTIONS

The disclosure relates to a dual catalytic method for forming aryl carbon-nitrogen bonds. The method comprises contacting an aryl halide with an amine in the presence of a dual catalytic solution comprising a Ni(II) salt catalyst, a photocatalyst, and an optional base, thereby forming a reaction mixture; exposing the reaction mixture to light under reaction condition sufficient to produce the aryl carbon-nitrogen bonds. In certain embodiments, the amine may be present in a molar excess to the aryl halide. In certain embodiment, the photocatalyst may be [Ru(bpy)]Clor an organic phenoxazine. In certain embodiments, the Ni salt catalyst solution includes a Ni(II) salt and a polar solvent, wherein the Ni(II) salt is dissolved in the polar solvent. 1. A dual catalytic method for forming an aryl carbon-nitrogen bond , the method comprising:contacting an aryl halide with an amine in the presence of a dual catalytic solution comprising a Ni(II) salt catalyst, a photocatalyst, and an optional base, thereby forming a reaction mixture; andexposing the reaction mixture to light under reaction conditions sufficient to form the aryl carbon-nitrogen bond.2. The method of claim 1 , wherein the reactions conditions comprise holding the reaction mixture at between about room temperature and about 80° C. for between about 1 hour and about 20 hours such that at least about 50% reaction yield is obtained.3. The method of claim 2 , wherein at least about 80% reaction yield is obtained.4. The method of claim 1 , wherein the aryl halide is selected from the group consisting of an aryl bromide claim 1 , an aryl chloride claim 1 , and an aryl iodide.5. The method of claim 4 , wherein the aryl halide is selected from the group consisting of bromobenzene; 4-bromobenzotrifluoride; 3-bromobenzotrifluoride; 1-bromo-3 claim 4 ,5-difluorobenzene; 4-bromobenzofluoride; 1-bromo-3-(trifluoromethyl)benzene; 1-bromo-3-chlorobenzene; 4-bromobenzamide; 1-bromo-4-methylbenzene; 1-bromo-4-methoxybenzene; 1- ...

SELECTIVE VALORIZATION OF BIOMASS SUGARS

Disclosed are methods of forming an epimer or a dehydrated isomer of a pyranose monosaccharide or a pyranose saccharide residue in an oligosaccharide or a glycoside. 210.-. (canceled)1222.-. (canceled)2429.-. (canceled)3244.-. (canceled)46. The method of claim 11 , wherein Xis a tungstate.47. (canceled)48. The method of claim 46 , wherein Xis sodium tungstate.49. (canceled)50. (canceled)51. The method of claim 46 , wherein Xis tetra-n-methylammonium decatungstate (TMADT) claim 46 , tetra-n-propylammonium decatungstate (TPADT) claim 46 , or tetra-n-butylammonium decatungstate (TBDAT).52. The method of claim 11 , wherein Xis an alkyl amine or a heterocyclic amine.5359.-. (canceled)60. The method of claim 11 , wherein Xis a thiol or a disulfide.6174.-. (canceled)75. The method of claim 11 , wherein the method further comprises a base.7679.-. (canceled)80. The method of claim 75 , wherein the base is an organic base.8183.-. (canceled)8597.-. (canceled)98. The method of claim 11 , wherein the method further comprises a Lewis acid.99. The method of claim 98 , wherein the Lewis acid is an alkyl borate.100. (canceled)101. The method of claim 11 , wherein hv is blue light (i.e. claim 11 , light with a wavelength of about 427 nm to about 500 nm) or white light.102105.-. (canceled)106. The method of claim 11 , wherein the method is performed at ambient conditions.107115.-. (canceled)116. The method of claim 11 , wherein the method further comprises a deuterated solvent and the method replaces a hydrogen at the site of epimerization position with a deuterium.117120.-. (canceled)121. The method of claim 11 , wherein the yield of A′ is greater than 25% claim 11 , greater than 30% claim 11 , greater than 40% claim 11 , greater than 50% claim 11 , greater than 60% claim 11 , greater than 70% claim 11 , greater than 80% claim 11 , greater than 90% claim 11 , greater than 95% claim 11 , or greater than 99%.122. (canceled)123. (canceled) This application claims the benefit of priority ...

NON-AQUEOUS METAL CATALYTIC COMPOSITION WITH OXYAZINIUM PHOTOREDUCING AGENT

A non-aqueous metal catalytic composition includes (a) a silver complex comprising reducible silver ions, (b) an oxyazinium salt silver ion photoreducing agent, (c) a hindered pyridine, (d) a photocurable component, a non-curable polymer, or combination of a photocurable component and a non-curable polymer, and (e) a photo sensitizer different from all components (a) through (d) in the non-aqueous metal catalytic composition, in an amount of at least 1 weight %. This non-aqueous metal catalytic composition can be used to form silver metal particles in situ during suitable reducing conditions. The silver metal can be provided in a suitable layer or pattern on a substrate, which can then be subsequently subjected to electroless plating to form electrically-conductive layers or patterns for use in various articles or as touch screen displays in electronic devices. 1. A non-aqueous metal catalytic composition comprising:(a) a silver complex comprising reducible silver ions, in an amount of at least 2 weight %,(b) an oxyazinium salt silver ion photoreducing agent in an amount of at least 2 weight %,(c) a hindered pyridine in an amount of at least 5 weight %,(d) a photocurable component, non-curable polymer, or combination of a photocurable component and a non-curable polymer, and(e) a photosensitizer different from all components (a) through (d) in the non-aqueous metal catalytic composition, in an amount of at least 1 weight %,all amounts being based on the total amount of components (a) through (e) in the non-aqueous metal catalytic composition.2. The non-aqueous metal catalytic composition of claim 1 , further comprising an inert organic solvent.3. The non-aqueous catalytic composition of claim 1 , wherein the silver complex is silver nitrate claim 1 , silver acetate claim 1 , silver benzoate claim 1 , silver nitrite claim 1 , silver oxide claim 1 , silver sulfate claim 1 , silver thiocyanate claim 1 , silver carbonate claim 1 , silver myristate claim 1 , silver ...

Process for the preparation of azidoperfluoroalkanes and N-polyfluoroalkyl azides

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

Selective hydrodeoxygenation of aromatic compounds

Disclosed are methods of selective hydrodeoxygenation of aromatic compounds by using catalyst systems comprising N-heterocyclic carbene (NHC) and 4-pyridinol-derived pincer ligands and metal complexes containing these ligands.

FIRST-ROW TRANSITION METAL HYDROGENATION AND HYDROSILYLATION CATALYSTS

Transition metal compounds, and specifically transition metal compounds having a tetradentate and/or pentadentate supporting ligand are described, together with methods for the preparation thereof and the use of such compounds as hydrogenation and/or hydrosilylation catalysts. 4. The metal complex of claim 1 , wherein:M is Mn, Fe, Co, or Ni; and{'sub': 2', '2, 'each X is independently selected from PR, NR, and any other donor group.'}5. The metal complex of claim 3 , wherein Z is hydride.6. A catalytic composition comprising the metal complex of .7. A method for reducing one or more organic substrates comprising contacting a composition comprising one or more organic substrates with a catalytic composition comprising a metal complex according to in the presence of a reductant claim 1 , whereby the one or more organic substrates are reduced.8. The method of claim 8 , wherein the reductant is a silane claim 8 , a substituted silane claim 8 , an alkoxysilane claim 8 , hydrogen claim 8 , a substituted borane claim 8 , a substituted alane claim 8 , or a mixture thereof.9. The method of claim 7 , wherein the one or more organic substrates contain a ketone claim 7 , an ester claim 7 , or mixtures thereof.10. The method of claim 9 , wherein the one or more organic substrates include an unsaturated organic compound.11. The method of claim 10 , wherein the unsaturated organic compound is an olefin or an alkyne.12. A method of facilitating a hydrosilylation reaction claim 1 , comprising reacting a compound comprising an Si—H bond with an unsaturated organic compound in the presence of one or more of the metal complexes of .13. The method of claim 12 , whereby the Si and H atoms in the Si—H bond are added across an unsaturated bond in the unsaturated organic compound to form an organosilicon compound.14. A method of facilitating a hydrogenation reaction claim 1 , comprising reacting Hwith an unsaturated organic compound in the presence of one or more of the metal complexes of . ...

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

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

Catalyst Systems and Polymerization Processes for Using the Same

A catalyst system including the product of the combination of an unbridged Group 4 metallocene compound and a 2,6-bis(imino)pyridyl iron complex is provided. A process for the polymerization of monomers (such as olefin monomers) and a polymer produced therefrom are also provided. 2. The catalyst system of claim 1 , wherein a molar ratio of the group 4 metallocene catalyst to the iron catalyst is from 1:1 to 20:1.3. The catalyst system of claim 1 , wherein M is hafnium.4. The catalyst system of claim 1 , wherein each of R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Ris hydrogen.5. The catalyst system of claim 1 , wherein one or more of R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Ris —CH—Si—(CH).6. The catalyst system of claim 5 , wherein R claim 5 , R claim 5 , R claim 5 , and Rare each hydrogen and Ris —CH—Si—(CH).7. The catalyst system of claim 1 , wherein each of R claim 1 , R claim 1 , and Ris hydrogen.8. The catalyst system of claim 1 , wherein Xand Xare chloride.11. The catalyst system of claim 1 , wherein Rand Rare independently fluorine claim 1 , chlorine claim 1 , bromine claim 1 , or iodine.12. The catalyst system of claim 11 , wherein Rand Rare chlorine.13. The catalyst system of claim 1 , wherein Rand Rare independently C-C-alkyl claim 1 , substituted C-C-alkyl claim 1 , unsubstituted phenyl claim 1 , or substituted phenyl.14. The catalyst system of claim 13 , wherein each of Rand Ris independently selected from methyl claim 13 , ethyl claim 13 , n-propyl claim 13 , isopropyl claim 13 , n-butyl claim 13 , isobutyl claim 13 , sec-butyl claim 13 , tert-butyl claim 13 , n-pentyl claim 13 , isopentyl claim 13 , sec-pentyl claim 13 , tert-pentyl claim 13 , n-hexyl claim 13 , isohexyl claim 13 , sec-hexyl claim 13 , tert-hexyl claim 13 , n-heptyl claim 13 , isoheptyl claim 13 , sec-heptyl claim 13 , tert-heptyl claim 13 , n-octyl claim 13 , isooctyl claim 13 , sec-octyl claim 13 , tert-octyl claim 13 , n-nonyl ...

Decarboxylative conjugate additions and applications thereof

Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside.

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

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

CATALYSTS FOR THE TRANSFORMATION OF CARBON DIOXIDE AND GLYCEROL TO FORMIC ACID AND LACTIC ACID AND METHODS OF MAKING THE SAME

Catalysts and methods for transformation of glycerol and a carbon feedstock, such as CO, a carbonate salt or a bicarbonate salt, are described herein. Homogeneous catalysts include compounds of formula M[NHC-R-linker]aLbXc, where M is a transition metal, NHC is an N-heterocyclic carbene ligand, R is an alkyl or aryl group, linker is a polar group, L is a neutral ligand, X is an anionic ligand, a ranges from 1-3, b ranges from 0-3, and c ranges from 0-3. Heterogeneous catalysts include a solid support with a catalytically active compound immobilized on the solid support, where the catalytically active compound has the formula M[NHC-R-linker]aLbXc where M is a transition metal, NHC is an N-heterocyclic carbene ligand, R is an alkyl or aryl group; linker is a polar group, L is a neutral ligand, X is an anionic ligand, a ranges from 1-3, b ranges from 0-3, and c ranges from 0-3. 1. A catalyst for the transformation of glycerol and any one CO , a carbonate salt and a bicarbonate salt , the catalyst comprising a catalytically active compound , or salt thereof , of formula (1):{'br': None, 'sub': a', 'b', 'c, 'M[NHC-R-linker]LX\u2003\u2003(I)'} M is a transition metal;', 'NHC is an N-heterocyclic carbene ligand;', 'R is an alkyl or aryl group;', 'linker is a polar group;', 'L is a neutral ligand;', 'X is an anionic ligand;', 'a is an integer ranging from 1 to 3;', 'b is an integer ranging from 0 to 3; and', 'c is an integer ranging from 0 to 3., 'where'}2. The catalyst of claim 1 , further comprising a solid support claim 1 , wherein the catalytically active compound is immobilized to the solid support.3. The catalyst of claim 2 , wherein the catalytically active compound is immobilized to the solid support viaionic or Coulombic interactions; ora covalent bond; oran indirect bond via a secondary linking compound, the secondary linking compound covalently bonded with both of the linker and the solid support.45-. (canceled)6. The catalyst of claim 2 , wherein the solid ...

COMPOUNDS

Disclosed are novel analogs of cytisine, a process for their preparation, pharmaceutical compositions containing them, and their use in the prevention of or treatment of CNS disorders including addictive disorders. 3. The compound of or , wherein Ris a substituted Calkyl group for example a substituted methyl group , for example aminomethyl , halogenated methyl e.g. chloromethyl , dichloromethyl , trichloromethyl , difluoromethyl , trifluoromethyl bromomethyl , dibromomethyl , tribromomethy; substituted ethyl groups , for example 1- or 2-aminoethyl , hydroxyethyl , halogenated ethyl e.g. 2 ,2 ,2-trichloroethyl , 2 ,2 ,2-tribromoethyl or 2 ,2 ,2-trifluoroethyl; substituted propyl , for example 1- , 2- or 3-aminomethyl; hydroxypropyl; or halogenated propyl.4. The compound of or , wherein Ris an unsubstituted Calkyl group , for example propyl , isopropyl , butyl or tert-butyl.5. The compound of or , wherein Ris unsubstituted or substituted aryl , for example , a phenyl group or a substituted phenyl group , for example a halogenated phenyl group , such as chlorophenyl , bromophenyl , fluorophenyl , perchlorophenyl , perbromophenyl , perfluorophenyl; or tolyl , aniline , phenol , styrene , benzonitrile , anisole , acetophenone , benzaldehyde or benzoic acid.6. The compound of or , wherein Ris an optionally substituted heteroaryl , such as benzyloxy pyridine , pyridone (e.g. 2-pyridone) , pyridine (e.g. 2-pyridine , 3-pyridine or 4 pyridine) , phenyltriazole , optionally substituted triazole , and triazole methylpivalate.7. The compound of or , wherein Ris an optionally substituted cycloalkyl or heterocycloalkyl , such as cyclopentyl , cyclohexyl , morpholinyl , piperidyl , piperazyl , tetrahydrofuryl , oxolanyl or dioxanyl.8. The compound of or , wherein Ris an optionally substituted Calkenyl or optionally substituted Calkynyl , such as vinyl , acrylate , —C═C—CH , acetynyl , —C≡C—CHor —C≡C-trimethylsilyl groups.9. The compound of or , wherein Ris amine , N-alkyl amine , ...

Catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons

This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc., including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.

Synthesis and characterization of metathesis catalysts

This invention relates generally to olefin metathesis catalysts, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, and the use of such compounds in the metathesis of olefins and in the synthesis of related olefin metathesis catalysts. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and in industrial applications such as oil and gas, fine chemicals, and pharmaceuticals.

DIALKYL COBALT CATALYSTS AND THEIR USE FOR HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION

Disclosed herein are dialkyl cobalt complexes containing pyridine di-imine ligands and their use as catalysts for hydrosilylation, dehydrogenative silylation, and/or crosslinking processes. 2. The process of claim 1 , wherein Rand Rindependently comprise an alkylsilyl group.3. The process of claim 2 , wherein the alkylsilyl group is trimethylsilylmethyl.5. The process of claim 1 , wherein Rand Rare independently chosen from methyl and ethyl.6. The process of claim 1 , wherein Rand Rare independently chosen from methyl and phenyl.7. The process of claim 1 , wherein R claim 1 , R claim 1 , and Rare hydrogen.8. The process of claim 1 , wherein Rand Rare each methyl.9. The process of claim 8 , wherein Rand Rare each methyl.10. The process of claim 8 , wherein Rand Rare each ethyl.11. The process of claim 8 , wherein Rand Rare each methoxy.13. The process of any of claim 1 , wherein the silylated product comprises a hydrosilylated product.14. The process of claim 1 , wherein the silylated product comprises a dehydrogenative silylated product.15. The process of claim 1 , wherein the silylated product comprises a mixture of a hydrosilylated product and a dehydrogenative silylated product.17. The process of claim 1 , wherein the unsaturated compound (a) is chosen from an unsaturated polyether; a vinyl functionalized alkyl capped allyl or methylallyl polyether; a terminally unsaturated amine; an alkyne; a C2-C45 olefin; an unsaturated epoxide; a terminally unsaturated acrylate or methyl acrylate; an unsaturated aryl ether; an unsaturated aromatic hydrocarbon; unsaturated cycloalkane; a vinyl-functionalized polymer or oligomer; a vinyl-functionalized silane claim 1 , a vinyl-functionalized silicone claim 1 , terminally unsaturated alkenyl-functionalized silane and/or silicone; unsaturated fatty acids; unsaturated fatty esters; vinyl-functional synthetic or natural minerals claim 1 , or a combination of two or more thereof.19. The process of further comprising removal of the ...

CATALYTIC SYSTEM, AND PROCESS FOR REMOVING HETEROATOMIC COMPOUNDS FROM HYDROCARBON STREAMS

The present invention describes an extractive oxidation process for removing contaminants from hydrocarbon streams using an ionic liquid combined with an organometallic ionic complex of iron(II), which comprises a complex of iron(II) cation with an ionophilic binder, catalyst of iron(II) with ionophilic binder in its molecular structure, oxidation of which is performed with an oxidizing agent and is catalysed by the organometallic iron(II) complex present in the phase of the ionic liquid. 1. Catalytic system for removing heteroatomic compounds from hydrocarbon streams , comprising an ionic liquid with 1 ,3-dialkylimidazolium cation , an anion and an organometallic complex of iron(II) , in which the organometallic complex of iron(II) is an ionic system that consists of an organometallic cation of iron(11) with an ionophilic binder system and an anion.2. Catalytic system according to claim 1 , wherein the 1 claim 1 ,3-dialkylimidazolium is based on the compound 1-n-butyl-3-methylimidazolium.3. Catalytic system according to claim 1 , wherein the anion is selected from the group consisting of tetrafluoroborate claim 1 , hexafluorophosphate and bis-trifluoromethanesulphonimidate.4. Catalytic system according to claim 1 , wherein the organometallic complex of iron(11) is prepared from an iron(II) salt and an ionophilic binder precursor.5. Catalytic system according to claim 1 , wherein the organometallic complex of iron(II) is prepared from an iron(11) bromide salt and 4((2 claim 1 ,3-dimethyl-imidazol-1-yl)methyl)-4′-methyl-2 claim 1 ,2′-bipyridine.6. Extractive oxidation process for removing heteroatoms from hydrocarbon streams claim 1 , comprising:a) providing a hydrocarbon stream of mineral or synthetic origin containing heteroatomic compounds to form phase I;b) providing a catalytic system and adding an oxidizing agent to form phase II, wherein the catalytic system comprises an ionic liquid with 1,3-dialkylimidazolium cation, an anion and an organometallic complex of ...

Composite catalyst for carbon dioxide reduction and method of fabricating of the same

Provided is a carbon dioxide reduction composite catalyst, comprising an organic-inorganic porous body, and a molecular reduction catalyst combined with the organic-inorganic porous body, wherein the organic-inorganic porous body includes metal oxide clusters, and a light-condensing organic material as linkers between the metal oxide clusters, and the linkers absorb visible light to form excitons, and move the excitons through energy transfer between the linkers to transfer the electrons of the excitons to the molecular reduction catalyst.

Method for producing fluorinated compound

An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound. The above object can be achieved by a method for producing a compound represented by formula (1):wherein R1 represents an organic group, RA represents hydrogen or fluorine, R4a represents hydrogen or an organic group, R4b represents hydrogen or an organic group, R5a represents hydrogen or an organic group, R5b represents hydrogen or an organic group, and R2 represents hydrogen or an organic group; R2 is optionally connected to R4a to form a ring; the method comprising step A of reacting a compound represented by formula (2):wherein X1 represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3):wherein X2 represents a leaving group, and other symbols are as defined above, in the presence of a reducing agent as desired, under light irradiation.

PROCESS FOR THE DIRECT CONVERSION OF DIISOBUTENE TO A CARBOXYLIC ACID

Process for the direct conversion of diisobutene to a carboxylic acid. 2. Process according to claim 1 ,{'sup': 1', '2', '3', '4, 'sub': 6', '20, 'wherein at least two of the R, R, R, Rradicals are a —(C-C)-heteroaryl radical having at least six ring atoms.'}3. Process according to claim 1 ,{'sup': 1', '3, 'sub': 6', '20, 'wherein the Rand Rradicals are each a —(C-C)-heteroaryl radical having at least ring atoms.'}4. Process according to claim 1 ,{'sup': 1', '3, 'sub': 6', '20, 'wherein the Rand Rradicals are each a —(C-C)-heteroaryl radical having at least six ring atoms;'}{'sup': '2', 'sub': 6', '20', '1', '12', '3', '12', '3', '12', '6', '20, 'Ris —(C-C)-heteroaryl having at least six ring atoms or is selected from —(C-C)-alkyl, —(C-C)-cycloalkyl, —(C-C)-heterocycloalkyl, —(C-C)-aryl;'}{'sup': '4', 'sub': 1', '12', '3', '12', '3', '12', '6', '20, 'and Ris selected from —(C-C)-alkyl, —(C-C)-cycloalkyl, —(C-C)-heterocycloalkyl, —(C-C)-aryl.'}5. Process according to claim 1 ,{'sup': 1', '3, 'sub': 6', '20, 'wherein the Rand Rradicals are each a —(C-C)-heteroaryl radical having at least six ring atoms;'}{'sup': 2', '4, 'sub': 1', '12', '3', '12', '3', '12', '6', '20, 'and Rand Rare selected from —(C-C)-alkyl, —(C-C)-cycloalkyl, —(C-C)-heterocycloalkyl, —(C-C)-aryl.'}6. Process according to claim 1 ,{'sup': 1', '3, 'sub': 6', '20, 'wherein the Rand Rradicals are each a —(C-C)-heteroaryl radical having at least six ring atoms;'}{'sup': 2', '4, 'sub': 1', '12, 'and Rand Rare —(C-C)-alkyl.'}7. Process according to claim 1 ,{'sup': 1', '2', '3', '4, 'wherein R, R, R, R, if they are a heteroaryl radical, are each independently selected from pyridyl, pyridazinyl, pyrimidyl, pyrazinyl, benzofuranyl, indolyl, isoindolyl, benzimidazolyl, quinolyl, isoquinolyl.'}9. Process according to claim 1 ,wherein the substance in process step b) is selected from:{'sub': 2', '2', '2', '2', '2', '3', '2, 'PdCl, PdBr, Pd(acac), Pd(dba)(dba=dibenzylideneacetone), PdCl(CHCN).'}10. Process ...

PROCESS FOR THE PREPARATION OF DEUTERATED ETHANOL FROM D2

The invention relates to a process for the preparation of a deuterated ethanol from an acetic acid, an acetate, or an amide by reaction with Din the presence of a transition metal catalyst. 2. (canceled)3. The process of claim 1 , wherein the process has a conversion to compound (I) of at least 90%.4. The process of claim 1 , wherein compound (II) is an acetate selected from: methyl acetate claim 1 , n-propyl acetate claim 1 , i-propyl acetate claim 1 , n-butyl acetate claim 1 , i-butyl acetate claim 1 , di(propylene glycol) methyl ether acetate claim 1 , phenyl acetate claim 1 , ethylene glycol diacetate claim 1 , propylene glycol diacetate claim 1 , and glyceryl triacetate.5. The process of claim 1 , wherein compound (II) is an acetate represented by the formula CHCOOR claim 1 , wherein an alcohol made from Rrepresented by ROH is a primary or a secondary alcohol.6. The process of claim 1 , wherein compound (II) is methyl acetate.7. (canceled)9. The process of claim 8 , wherein the catalyst is of formula (V).10. The process of claim 9 , wherein compound (II) is selected from: methyl acetate claim 9 , n-propyl acetate claim 9 , i-propyl acetate claim 9 , n-butyl acetate claim 9 , i-butyl acetate claim 9 , and glyceryl triacetate.11. The process of claim 9 , wherein compound (II) is methyl acetate.12. The process of claim 9 , wherein the reaction is performed in the presence of a base.13. The process of claim 12 , wherein the base is NaBH.14. The process of claim 13 , wherein compound (II) is selected from: methyl acetate claim 13 , n-propyl acetate claim 13 , i-propyl acetate claim 13 , n-butyl acetate claim 13 , i-butyl acetate claim 13 , and glyceryl triacetate.15. The process of claim 13 , wherein compound (II) is methyl acetate.16. The process of claim 8 , wherein the catalyst is of formula (VI).17. The process of claim 16 , wherein compound (II) is selected from: methyl acetate claim 16 , n-propyl acetate claim 16 , i-propyl acetate claim 16 , n-butyl acetate ...

METHOD FOR SYNTHESIZING CHIRAL BETA-HYDROXY ACID ESTER COMPOUND

A method for synthesizing a chiral β-hydroxy acid ester compound is disclosed. The method includes the steps of: using an aldehyde compound and a monoalkyl malonate as raw materials, using a metal and a chiral ligand as a catalyst to make the raw materials be directly and fully reacted in an organic solvent and form a reaction solution, and separating and purifying the reaction solution to obtain the highly stereoselective β-hydroxy acid ester compound. The beneficial effects are mainly embodied in: 1. simple operation; 2. rapidly constructing a highly stereoselective β-hydroxy acid ester skeleton structure molecule; 3. high reaction yield and good stereoselectivity. Therefore, the invention has high basic research significance, industrial production value and social economic benefit. 2. The method according to claim 1 , wherein said organic solvent is selected from one or a combination of dichloromethane claim 1 , ethyl acetate claim 1 , tetrahydrofuran claim 1 , acetonitrile claim 1 , toluene claim 1 , methanol and chloroform.3. The method according to claim 1 , wherein the mass of said organic solvent used is 1-200 times the mass of the raw materials.4. The method according to claim 1 , wherein the molar ratio of said aldehyde compound to said monoalkyl malonate is 1:1-5.5. The method according to claim 1 , wherein said metal compound in said catalyst is selected from the group consisting of one or a combination of copper triflate claim 1 , copper sulfate claim 1 , copper acetate claim 1 , palladium acetate claim 1 , ferrous fluoride claim 1 , silver acetate claim 1 , nickel acetate tetrahydrate claim 1 , nickel acetylacetonate claim 1 , nickel fluoride claim 1 , nickel chloride hexahydrate claim 1 , nickel sulfate claim 1 , nickel perchlorate claim 1 , and bistriphenylphosphine nickel chloride.8. The method according to claim 1 , wherein the ratio of said catalyst to said aldehyde compound is 1 wt %-20 wt % claim 1 , and the molar ratio of the metal to the ...

AN IMPROVED LED BASED PHOTOCHEMICAL REACTOR

The present invention provides an improved photochemical rector assembly device, particularly a light emitting diode (LED) based small photochemical reactor and methods for performing the photochemical transformations using the instantly presented device. Accordingly, the present invention relates to an improved photochemical transformation reaction by exposing the reaction mixture to a photochemical rector device as shown in fig. A-G, comprising of (i) light emitting diode (LED) panel (), (ii) Aluminium based heat sink, and (iii) cooling fan. 1. A photochemical rector device assembly as shown in Figures: A-G;comprising of{'b': '1', '(a) light source ();'}{'b': '3', '(b) heat dissipation assembly (); and'}{'b': '4', '(c) cooling assembly ().'}21. The device according to the claim 1 , wherein the light source () is a light emitting diode (LED) panel having wavelength selected from Violet (395-430 nm) claim 1 , Indigo (430-450 nm) claim 1 , Blue (450-480 nm) claim 1 , Blue-Green (480-520 nm) claim 1 , Green (520-555 nm) claim 1 , Yellow-Green (555-585 nm) claim 1 , Yellow (585-600 nm) claim 1 , Amber (600-615 nm) claim 1 , Orange (615-625 nm) claim 1 , Orange-Red (625-640 nm) and/or Red (640-700 nm).33. The device according to the claim 1 , wherein the heat dissipation assembly () is an aluminium based heat sink.44. The device according to the claim 1 , wherein the cooling assembly () is a cooling fan.8. The process according to claim 5 , wherein the catalyst is a photocatalyst selected from [4 claim 5 ,4′-Bis(tert-butyl)-2 claim 5 ,2′-bipyridine]bis[3 claim 5 ,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl]phenyl]iridium(III) hexafluorophosphate (Ir[dF(CF)ppy](dtbbpy)PF6).9. The process according to 6 claim 5 , wherein the catalyst is a photocatalyst selected from [4 claim 5 ,4′-Bis(tert-butyl)-2 claim 5 ,2′-bipyridine]bis[3 claim 5 ,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl] phenyl]iridium(III) hexafluorophosphate (Ir[dF(CF)ppy]2(dtbbpy)PF6).10. The process ...

PROCESS FOR PRODUCTION OF D-SORBITOL

The present invention relates to a new process for the production of D-sorbitol. 2. A process according to claim 1 , wherein the transition metal of the transition metal based complex is selected from the group consisting of Ru claim 1 , Ir claim 1 , Pd claim 1 , Pt claim 1 , Rh claim 1 , Fe claim 1 , Os claim 1 , Ni claim 1 , and Co.3. A process according to claim 2 , wherein the transition metal of the transition metal based complex is selected from the group consisting of Ru and Ir.4. A process according to claim 1 , wherein the transition metal based complex comprises at least one organic ligand.6. A process according to claim 1 , wherein the process is carried out in at least one solvent.7. A process according to claim 6 , wherein the process is carried out in at least one non-aqueous claim 6 , organic or polar solvent.8. A process according to claim 1 , wherein the process is carried out in the presence of Hgas.9. A process according to claim 1 , wherein the process is carried out at a pressure of about 2 bar to about 200 bar claim 1 , preferably of about 5 bar to about 100 bar claim 1 , more preferably of about 10 bar to about 60 bar.10. A process according to claim 1 , which is carried out at a temperature in the range from about 20° C. to about 150° C. claim 1 , preferably from about 30° C. to about 100° C.11. A process according to claim 1 , which is carried out at a molar ratio of substrate to catalyst in the range of about 50 to about 100000 claim 1 , preferably of about 100 to about 40000 claim 1 , more preferably of about 5000 to about 30000.12. A process according to claim 1 , wherein the process is carried out in the presence of at least one base claim 1 , preferably at least one alkoxide base. The present invention relates to a new process for the production of sorbitol.D-Sorbitol, also known as D-glucitol, is a sugar alcohol with a sweet taste which the human body metabolizes slowly.D-Sorbitol, which IUPAC name is (2S,3R,4R,5R)-hexane-1,2,3,4,5,6- ...

DEHYDROGENATIVE SILYLATION, HYDROSILYLATION AND CROSSLINKING USING PYRIDINEDIIMINE COBALT CARBOXYLATE CATALYSTS

A process for producing a silylated product comprises reacting a mixture comprising (a) an unsaturated compound containing at least one unsaturated functional group, (b) a silyl hydride containing at least one silylhydride functional group, and (c) a catalyst, optionally in the presence of a solvent, to produce a dehydrogenative silylated product, a hydrosilylated product, or a combination of a dehydrogenative silylated product and a hydrosilylated product, wherein the catalyst is chosen from a pyridine diimine cobalt dicarboxylate complex or a cobalt carboxylate compound, and the process is conducted without pre-activating the catalyst via a reducing agent and/or without an initiator or promoter compound. The present catalysts have been found to be active in the presence of the silyl hydride employed in the silylation reaction. 2. The process of claim 1 , wherein Rand Rare each chosen from a C1-C18 alkyl.3. The process of claim 1 , wherein Rand Rare each CH claim 1 , 3-heptyl claim 1 , or C(CH3).4. The process of claim 1 , wherein Rand Rare independently chosen from a C1-C10 alkyl.5. The process of claim 1 , wherein Rand Rare each methyl claim 1 , ethyl claim 1 , or cyclohexyl.6. The process of claim 1 , wherein R-Rand R-Rtaken together form a 5-membered heterocyclic ring structure or a 6-membered heterocyclic ring structure with the imine nitrogen.7. The process of claim 6 , wherein the ring structure further comprises one or more heteroatoms other than the imine nitrogen.10. The process of claim 1 , wherein the metal carboxylate is chosen from Co(acetate).4HO claim 1 , anhydrous Co(acetate) claim 1 , Co(2-ethylhexanoate) claim 1 , or a combination of two or more thereof.11. The process of claim 1 , wherein component (a) is chosen from an olefin claim 1 , a cycloalkene claim 1 , an unsaturated polyether claim 1 , a vinyl-functional alkyl-capped allyl or methallyl polyether claim 1 , an alkyl-capped terminally unsaturated amine claim 1 , an alkyne claim 1 , a ...

Molybdenum and tungsten metal complexes and use thereof as precatalysts for olefin metathesis

The invention relates to metal complexes of general formula (I) and to a method for the production thereof, in which M, R 1 , R 2 , R 3 , X and Y in addition to R a , R b , R c , R d , R e , R f , R g , R h can have the meanings defined in the claims. Said metal complexes form air-stable compounds and are suitable as pre-catalysts in the olefin metathesis.

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

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

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

An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions: 1. A method for synthesizing a 2 ,2′-bithiophene or analog thereof from two thiophenes or analogs thereof , the method comprising:contacting the two thiophenes or analogs thereof with oxygen gas and a catalyst comprising palladium, whereby the two thiophenes or analogs thereof are covalently coupled by aerobic oxidation to form the 2,2′-bithiophene or analog thereof;wherein the two thiophenes or analogs thereof are not substituted exclusively with alkyl groups, alkoxy groups, alkanoate groups, alkanamide groups, alkoxyalkyl groups, and benzoalkyl groups.2. (canceled)45.-. (canceled)711.-. (canceled)12. The method of claim 1 , wherein the 2 claim 1 ,2′-bithiophene that is synthesized is a 2 claim 1 ,2′-bibenzo[b]thiophene claim 1 , and wherein the two thiophenes are benzo[b]thiophenes.14. (canceled)15. The method of claim 13 , wherein the 2 claim 13 ,2′-bibenzo[b]thiophene that is synthesized is 3 claim 13 ,3′-dibromo-2 claim 13 ,2′-bibenzo[b]thiphene or 2 claim 13 ,2′-bibenzo[b]thiophene claim 13 , and wherein the two benzo[b]thiophenes are 3-bromobenzo[b]thiophene (Ris bromine; R claim 13 , R claim 13 , Rand Rare all hydrogen) or unsubstituted benzo[b]thiophene (R claim 13 , R claim 13 , R claim 13 , Rand Rare all hydrogen).16. (canceled)17. The method of claim 1 , wherein the 2 claim 1 ,2′-bithiophene that is synthesized is a 5 claim 1 ,5′-bis-(1-oxoalkyl)-2 claim 1 ,2′-bithiophene claim 1 , and wherein the two thiophenes are 2-(1-oxoalkyl)thiophenes.1921.-. (canceled)22. The method of claim 18 , wherein the 5 claim 18 ,5′-bis-(1-oxoalkyl)-2 claim 18 ,2′-bithiophene that is synthesized is 5 claim 18 ,5′-bis(trimethylacetyl)- ...

Oligomeric and polymeric species comprising cyclobutane units

In one aspect, oligomeric and polymeric species are described herein exhibiting new architectures and associated properties. In some embodiments, such species are synthesized by oligomerization or polymerization of diene monomer via cycloaddition in the presence of a transition metal complex. Oligomers described herein, for example, comprise cyclobutane units in the oligomer backbone. Similarly, a polymers described herein comprise cyclobutane units in the polymer backbone.

Low Molecular Weight Sterically Encumbered Oligomers

Low molecular weight, high Tg resins, with applications including tire additives and adhesives. An oligomer is obtained by ring opening metathesis polymerization (ROMP) of a sterically encumbered cyclic monomer with an olefinic chain transfer agent. The sterically encumbered cyclic monomer and the olefinic chain transfer agent are present in the polymerization at a molar ratio of from 2:1 to about 40:1. Also, methods for making the oligomer by ROMP.

Catalyst compositions and their use for hydrogenation of nitrile rubber

Catalyst compositions based on Ruthenium- or Osmium-based complex catalysts and specific co-catalysts are provided for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions.

Catalyst for contaminant reduction and methods of use thereof

Described herein are heterogeneous catalysts for removing impurities, such as halogen oxyanions (e.g., ClO4− and ClO3−), from a fluid, the catalyst can comprise: an oxygen atom transfer (OAT) transition metal, a Group VIII metal, and a support, where the transition metal, and the Group VIII metal can be in physical communication with the support either directly or indirectly through each other, whereby the catalyst can chemically remove impurities from the fluid. Certain embodiments provide catalysts that further comprise nitrogen donor ligand(s). Accordingly, such catalysts that comprise the OAT transition metal in the form of a complex with one or more nitrogen donor ligands have enhanced efficiency in reducing halogen oxyanion (e.g., ClO4−) to Cl−. Also described are methods or kits for making the catalysts and methods or reactor for the treatment of a fluid utilizing the catalyst.