Способ димеризации низших @ -олефинов

Способ получения гептенов

VERFAHREN ZUR HERSTELLUNG VON N-OCTADIENOL

CYCLISCHE ACYLHARNSTOFFVERBINDUNGEN ENTHALTENDE KATALYSATOREN UND OXIDATIONEN UND NITRIERUNGEN VON ORGANISCHEN VERBINDUNGEN IN IHRER GEGENWART

Polymere phosphorhaltige Zusammensetzungen und deren Verwendung in Hydrocyanierungs-, Isomerisierungs- und Hydroformylierungs-Reaktionen

NICHT-LINEARES POLYMERISAT ALS KATALYSATORVORLAEUFER UND DEREN VERWENDUNG IN EINER KATALYSATORZUSAMMENSETZUNG

Optisch aktive Diphosphine, diese enthaltende Übergangsmetallkomplexe und ein Verfahren zur Darstellung einer optisch aktiven Verbindung, in dem diese Komplexe eingesetzt werden

Verfahren zur Anlagerung von Cyanwasserstoff an Olefine

Verfahren zum Herstellen organischer Nitrile

VERFAHREN ZUR HERSTELLUNG EINES ALDEHYDS

Vinyl acetate - from acetic acid and ethylene,using palladium and cupric catalysts,free from halogens

A catalytic compsn. for the synthesis of vinyl acetate pour acetic acid and ethylene in a medium free from halogen ions, consists of a combination of a cupric salt, pref. the acetate, and a Pd chelate in which the chelating agent is an amino acid or a peptide. The ratio of Cu to Pd is pref. 1/10 - 10,000, esp. 2-300. Compsn. pref. also includes an alkali metal salt, pref. the acetate. The process may be carried out continuously. Freedom from halogen ions minimises corrosion.

SOLID CATALYST FOR HETEROGENEOUS REACTIONS

... 1447707 Acidic catalyst composition IMI (TAMI) INSTITUTE FOR RESEARCH & DEVELOPMENT 15 Jan 1974 [17 Jan 1973] 01838/74 Heading B1E [Also in Divisions C2 and C5] A catalyst comprises a solid carrier and carboxymethane sulphonic acid and/or products resulting from thermal treatment thereof at a temperature not exceeding 330‹C. The catalyst is formed by impregnating the carrier with the acid or precursors thereof (e.g. glacial acetic acid and sulphur trioxide, acetic acid anhydride and sulphuric acid, acetic acid and oleum or acetylsulphuric acid), drying, if desired under reduced pressure, at a temperature not exceeding 170‹C, then baking at 170-330‹C to constant weight. The carrier may be an inorganic oxide, an acid based on such an oxide or a salt thereof, e.g. alumina, silica, bona, zirconia, silica-alumina, silica-alumina-zirconia, diatomaceous earth, atterpulgus clay or bentonite or may be active carbon or graphite. The carrier may be pretreated with an acid before the impregnation.

Process for the preparation of Dimethylbutenes

... 1,151,015. Dimethylbutenes; dimethylbutanes. ESSO RESEARCH & ENG. CO. 1 Aug., 1967 [1 Aug., 1966], No. 35330/67. Heading C5E. Dimethylbutenes are prepared by dimerizing propylene in the presence of a solvent and a catalyst complex comprising (1) the acetylacetonate of Co, Ni or Fe, (2) AlR n X 3-n , where R is C 1-6 alkyl, X is halogen, and n is 1-2, and (3) a phosphine of formula R 3 P, where R is an alkyl or cycloalkyl group having up to 10 carbon atoms, the product comprising at least 10 wt. per cent dimethylbutenes. The catalyst may contain a promoter, e.g. propylene or 1,5-cyclooctadiene. Suitable solvents are aliphatic and aromatic hydrocarbons and their halogenated derivatives. The product may be hydrogenated to form dimethylbutanes, suitable as gasoline components, e.g. by contact with spent dimerization catalyst, cobalt molybdate on alumina, or one or more of Ni, Co, Mo, Pt or Ce, supported on alumina, silica-alumina, bauxite, clay, kieselguhr or a molecular sieve.

ORGANOSILICON COMPOUNDS

... 1292077 Silanes DYNAMIT NOBEL AG 24 July 1970 [25 July 1969] 36118/70 Heading C3S Novel silanes of the formula (wherein R11 represents an alkyl group) and other organosilicon compounds are prepared by reacting a silane of the formula H a SiR b X 4- ( a+b ), in which X represents halogen, alkoxy, or aryloxy, R reprssents halogen, alkoxy, aryloxy, alkyl, cycloalkyl or aryl, a is 1 or 2 and b is 0 or 1, with an ethylenically or acetylenically unsaturated compound in the presence of a platinum catalyst of the formula [PtR1Cl 2 ] c in which R1 represents a molecule of an unsaturated ketone and c is 1 or 2. Examples describe the preparation of gamma-glycidyloxypropyltrimethoxysilane, 3 - acetyl - oxypropyl - trichlorosilane, 3 - (21 - ethylcaproyloxy) - propyltriethoxysilane, 3 - methacryloxypropyl - trichlorosilane, 3 - methacryloxypropyl - trimethoxysilane, 3 - tetrahydrofurfuryl - 2 - methyloxypropyl - triethoxysilane, 3 - tetrahydrofurfuryl - 2 - methyloxypropyl ...

COMPLEX NICKEL COMPOUNDS

... 1394134 Nickel complexes containing phosphorus ligands; adiponitrile E I DU PONT DE NEMOURS & CO 2 Aug 1972 [2 Aug 1971] 36120/72 Headings C2P and C2C Novel N-bonded nitrile complexes of zerovalent nickel of formula Ni(PXYZ) 3 R1CN where X is OR, Y and Z are R or OR and R is optionally substituted C 1-18 alkyl or aryl, the radicals R of a given PXYZ ligand optionally being cojoined, and being the same or different, the radicals R being chosen so that the ligand PXYZ has a cone angle having an average value between 130 and 200 degrees, and where R1CN is an organo nitrile, may be prepared by reacting a complex Ni(PXYZ) 3 or another suitable complex with R1CN. R1 is preferably alkyl cyanoalkyl, aryl, fluoroaryl or C 3-20 alkenyl wherein the double bond is separated from CN by at least one carbon atom. The complexes may be used as catalysts in a process for the hydrocyanation of olefinic compounds, e.g. the hydrogenation of 3-pentenonitrile or 4-pentenonitrile ...

CYANOHYDRINATION CATALYST AND PROCESS.

A catalyst for the asymmetric cyanohydrination of m-phenoxybenzaldehyde, comprises a catalytically effective amount of enantiomeric cyclo (phenylalanyl-histidine) adsorbed on a solid support comprising a non-ionic polymer resin. The catalyst is particularly useful as a catalyst in a process for the preparation of (s)-m-phenoxybenzaldehyde cyanohydrin, in which m-phenoxybenzaldehyde is reacted in a cyanohydrination solvent.

Dimerisation Process

... 1,178,920. Dimerisation catalysts. BRITISH PETROLEUM CO. Ltd. 27 Nov., 1968 [28 Dec., 1967], No. 58824/67. Heading B1E. [Also in Division C5] Olefin dimerisation catalysts comprise (a) a nickel complex of either di-isobutyryl methane or dibenzoyl methane, and (b) an aluminium alkyl, e.g. Al(C 2 H 5 ) 3 or Al(C 2 H 5 O) (C 2 H 5 ) 2 .

Production of monovinylacetylene and catalyst therefor

A catalyst for converting acetylene to monovinyl acetylene consists of two phases, firstly a solution of Cu2Cl2 and a primary or secondary amine hydrochloride containing not more than six carbon atoms, in an anhydrous liquid carboxylic acid amide containing not more than six carbon atoms, the amide amounting to less than 30% by weight of the solution and secondly one or more monoalkyl ethers of monoethylene glycol containing six to ten carbon atoms in the alkyl radical. The preferred solvent is dimethyl formamide but also mentioned are formamide and acetamide. The preferred amine hydrochloride is CH3NH2.HCl. Examples are given.ALSO:A catalyst for converting acetylene to monovinylacetylene consists of two phases, firstly a solution of Cu2 Cl2 and a primary or secondary amine hydrochloride containing not more than six carbon atoms, in an anhydruous liquid carboxylic acid amide containing not more than six carbon atoms, the amide amounting to less than 30% by weight of the solution and secondly ...

Production of tert.-butyl-alkyl ethers

Ethers are prepared by reacting isobutene with a primary or secondary saturated or unsaturated aliphatic, cycloaliphatic or araliphatic alcohol, which may be substituted, in the presence of a sulphonic acid group-containing cation exchange resin based on one or more vinyl aromatic polymers. The isobutene may be used in admixture with saturated and unsaturated hydrocarbons, e.g. the C4 fraction from the fractionation of cracked gasoline. The resin may be based on a copolymer of a monovinyl compound with an aromatic divinyl compound, the divinyl compound being in a proportion of from 1 to 20% by weight. The resin may be in the so-called H form. The reaction is preferably at 0 to 100 DEG C. and between 0 and 300 atmospheres pressure. Substituents which may be present in the alcohol are halogen, alkoxy, and carbonyl. Alcohols specified in examples are methanol, allyl alcohol, ethylene chlorohydrin, ethylene glycol monomethyl ether, benzyl alcohol, ethylene glycol, isopropanol, aldol.

Process of making cyanoalkylsilanes

Aminoalkylalkoxysilanes (see Group IV(a)) may be applied to metal articles and cured on the surface to provide protective coatings. The silanes have the formula X3SiCaH2aNH2, where X is alkoxy and a is 3 or more. Specification 847,805 is referred to.ALSO:Cyanoalkylsilanes in which the cyano group is connected to the silicon atom through at least 2 carbon atoms are prepared by reacting an alkene nitrile with a silane HSiX3, where X is a hydrolysable group other than hydrogen, in the presence of a tertiary silyl amine catalyst of the formula A4-ySi(NR2)y where A is a monovalent hydrocarbon group, an alkoxy group or halogen, R is an alkyl group and y is 1 to 4. Typical examples of catalysts are (CH3)3SiN (C4H9)2, ClSi[N(C2H5)2]3 and (Eto)3 SiN(CH3)2. Reaction temperatures are generally from 50 DEG to 250 DEG C. To reduce the amount of heavies formed, a silane of the formula RSiHX2 (X being a hydrolysable group and R a monovalent hydrocarbon group) may be added to the reaction mixture. A polymerisation ...

Preparation of acrylate dimers and trimers

The invention relates to polymerizable mixtures comprising a dimeric and/or trimeric C1-C18-alkyl acrylate optionally in association with other comonomers such as methyl methacrylate and/or styrene, processes for polymerizing such mixtures and the polymer so prepared. (For the preparation of the dimeric and trimeric acrylates see Division C2.) The copolymers, which may typically contain 40% by weight of methyl methacrylate, 40% by weight of styrene and 20% by weight of the trimeric acrylate, are effective as coatings that are resistant to cracking and have high impact strength.ALSO:Preparation of dimeric and/or trimeric acrylates from an acrylate monomer of the formula CH2=CH.COOR in the presence of a catalyst of the formula or wherein R is an alkyl group containing from 1 to 18 carbon atoms; R1 and R4 are the same or different phenyl, alkyl group containing from 1 to 18 carbon atoms or alkyl substituted phenyl in which the alkyl substituent(s) contain(s) a total of from 1 to ...

Hydrocarbon conversion with sulphonated resins

Hydrocarbon conversion reactions involving olefins are effected in the presence of a sulphonated synthetic ion exchange resin in acid form having less than 4% cross-linking and a water sorption of at least 22 mols. per equivalent of sulphonic acid and preferably having a particle size below 500 microns. Specific conversions are the alkylation of benzene, alkyl benzene or naphthalene, with ethylene, propylene, butylene, heptene, or propylene tetramer and isomerization of alpha-pinene to camphene. Alkylation may be effected in non-polar solvents at 60-200 DEG C. and up to 100 atmospheres.

NEW RUTHENIUM COMPLEXES AND PROCESSES FOR THEIR PREPARATION

... 1,213,538. Ruthenium complexes. RHONEPOULENC S.A. 10 Dec., 1968 [11 Dec., 1967], No. 58560/68. Heading C2C. Ruthenium complexes of the formula where (diket) is a bidentate ligand derived from a #-diketone and has the general formula where R 1 , R 2 and R 3 are alkyl, cycloalkyl, or aryl, which may be substituted by halogen, or R 1 and R 2 or R 2 and R 3 taken together may represent a divalent hydrocarbyl radical which may be substituted by halogen, L is a mono- or bidentate ligand other than CO or a #-diketone and n is 1 or 2, are prepared by reacting a ligand L, in the presence of a hydrogenation catalyst, with a tris-(diket) Ru complex under a hydrogen atmosphere, or by reacting a complex (Ru- (diket) 2 L1 n , where L1 is a weaker electron donor than L, with a ligand L. Some of the complexes are claimed per se. The hydrogenation reaction is preferably carried out in the presence of a solvent, e.g. excess of L if it is liquid, and the catalyst is preferably a ruthenium ...

Asymmetric syntheses.

PROCEDURE FOR THE ASYMMETRICAL SYNTHESIS

HYDROSILYLIERUNGSVERFAHREN IN PRESENCE OF RUTHENIUM CATALYSTS

PROCEDURE FOR THE PRODUCTION OF NEW POLYMERS RHODIUM, IRIDIUM AND RUTHENIUM PHOSPHINKOMPLEXVERBINDUNGENUND THEIR USE

HETEROGENEOUS CATALYST.

ALKYLATING PROCEDURE.

CATALYST FOR HYDROGENATION, DEHYDROSILYLIERUNG OR HYDROSILYLIERUNG AND ITS USE.

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

CATALYST COMPOSITION FROM EINZÄHNINGEN PHOSPHITELIGANDEN AND NICKEL TO HYDROCYANIERUNG OF MONOOLEFINEN

HYDROCYAN ADDITION TO DIOLEFINE AND ISOMERIZATION OF NOT CONJUGATED ONE 2-LKYL-3 MONO ALKENE NITRILES

LIGAND FOR PNICOGENCHELATKOMPLEXE WITH A METAL THE VIIITH NEBENGRUPPE AND USE OF THE COMPLEXES AS CATALYSTS FOR HYDROFORMYLIERUNG, CARBONYLIERUNG, HYDROCYANIERUNG OR HYDROGENATION

PROCEDURE FOR THE FUNCTIONALIZATION OF CELEBRATIONS CARRIERS

PHOSPHONITE, YOUR USE AS LIGAND IN TRANSITION METAL COMPLEXES AND PROCEDURE FOR THE PRODUCTION OF NITRILES

PROCEDURE FOR the PRODUCTION OF 2,6-DI TERT.BUTYLPHENOL

CYCLOOLEFINKOMPLEXE OF PLATINUM, PROCEDURE FOR THEIR PRODUCTION AS WELL AS THEIR USE AS CATALYST.

PROCEDURE FOR THE PRODUCTION OF PHOSPHOROCHLORIDITEN

HETERO ARYL ARYL DIPHOSPHINE AS CHIRALE LIGAND

PROCEDURE FOR THE PRODUCTION OF ALDEHYDES

ALKYLATION OF PARAFFINIC HYDROCARBONS USING ACIDIC CATALYSTS

MIXTURES OF CHIRAL MONOPHOSPHORUS COMPOUNDS USED AS LIGAND SYSTEMS FOR ASYMMETRIC TRANSITION METAL CATALYSIS

Mesoscopic organopolysiloxane particles with chemically bound metallic compounds

CATION EXCHANGE RESINS

MONOPHOSPHINE COMPOUNDS, TRANSITION METAL COMPLEXES THEREOF AND PRODUCTION OF OPTICALLY ACTIVE COMPOUNDS USING THE COMPLEXES AS ASYMMETRIC CATALYSTS

TRANSITION METAL CATALYST COMPOSITIONS AND THEIR PRECURSORS

EXTRACTION OF NICKEL(0) COMPLEXES FROM NITRILE MIXTURES WITH REDUCED POWDER FORMATION

COMPLEXE PLATINE-ALCENYLCYCLOHEXENE COMME CATALYSEUR DE REACTION D'HYDROSILYLATION ET SON PROCEDE DE PREPARATION

La présente invention concerne un procédé de préparation d'un catalyseur d'hydrosilylation complexe platine-oléfine, caractérisé en ce qu'on fait réagir un halogénure de platine sur un composé basique choisi parmi au moins un carbonate ou un bicarbonate de métal alcalin ou alcalino-terreux en présence d'un ligand oléfinique choisi parmi un alcényl-cyclohexène de formule: dans laquelle R1 représente un radical alcényle ayant de 2 à 6 atomes de carbone, et R2 représente l'atome d'hydrogène ou un radical organique n'ayant pas d'influence défavorable sur l'activité catalytique du platine en particulier un radical alkyle ayant de 1 a 4 atomes de carbone pour obtenir un complexe platine-alcénylcyclohexène présentant un rapport d'atome-gramme d'halogène sur atome-gramme de platine compris entre pratiquement 0 et 4 inclus. L'invention concerne également le complexe platine-alcénylcyclohexène et son utilisation comme catalyseur d'hydrosilylation dans la réalisation de compositions organopolysiloxaniques ...

HYDROCYANATION OF OLEFINS

ISOPARAFFIN-OLEFIN ALKYLATION

This invention relates to a process for effecting alkylation of an isoparaffin with an olefin in the presence of a catalyst comprising a macroreticular acid cation exchange resin characterized by a surface acid concentration of less than about 0.5 milliequivalents of hydrogen ion per square meter surface area and boron trifluoride, the latter being present in an amount in excess of that required to saturate said resin.

MOTOR FUEL ALKYLATION CATALYST AND PROCESS FOR THE USE THEREOF

... "NOVEL MOTOR FUEL ALKYLATION CATALYST AND PROCESS FOR THE USE THEREOF" A novel hydrocarbon alkylation catalyst is disclosed comprising a mineral acid and an ether component. A process for utilizing the novel catalyst is also disclosed.

PROCESS FOR PRODUCING ALKADIENES

HYDROCYANATION OF OLEFINS

CATALYST FOR HYDROGENATION, ISOMERIZATION AND HYDROSILYLATION OF ALKENES AND METHOD OF PREPARATION OF THIS CATALYST

POLYMERIC, PHOSPHOROUS-CONTAINING COMPOSITIONS AND THEIR USE IN HYDROCYANATION, ISOMERIZATION AND HYDROFORMYLATION REACTIONS

A polymeric, phosphorus-containing composition derived from aryl to aryl coupling of a substituted 2,2'-dihydroxyl-1,1'-binaphthalene or a substituted 2,2'-dihydroxyl-1,1'-biphenylene and phosphonylated at the dioxyl of said structure with at least one diaryloxyphosphite [-P(-O-Ar)2], diarylphosphine [- P(Ar)2] and/or aryl,aryloxyphosphinite [-P(Ar)(-O-Ar)], where each Ar is individually phenyl, substituted phenyl, naphthyl, and substituted naphthyl, provided that the two Ar groups that are directly or indirectly bonded to the same phosphorus atom may be linked to each other by a linking unit selected from direct bond, alkylidene, secondary or tertiary amine, oxygen, sulfide, sulfone, and sulfoxide. Polymerization by aryl to aryl coupling is achieved by direct oxidative coupling of the binaphthalene or biphenylene, copolymerization with an aromatic comonomer, or copolymerization with an aldehyde. The phosphonylation may be performed prior to or after polymerization. The polymeric, phosphorus-containing ...

RHODIUM BASED CATALYSTS FOR THE SYNTHESIS OF 1,4-DIENES

METHOD FOR THE PRODUCTION OF NICKEL(0)-PHOSPHOROUS LIGAND COMPLEXES

MIXTURES OF CHIRAL MONOPHOSPHORUS COMPOUNDS USED AS LIGAND SYSTEMS FOR ASYMMETRIC TRANSITION METAL CATALYSIS

The invention relates to certain chiral transition metal catalysts, to the metal of which at least two structurally different monophosphorus ligands are bonded, at least one of said monophosphorus ligands being chiral. Said chiral transition metal catalysts are suitable as catalysts for use in asymmetric transition metal-catalyzed reactions, providing better enantioselectivities than in cases where only one structurally defined ligand is used.

HIGHLY REACTIVE METAL HYDRIDES, PROCESS FOR THEIR PREPARATION AND USE

The invention relates to powdery, highly reactive alkaline and alkaline earth hydride compounds and mixtures with elements of the third main group of the periodic table of elements (PTE), and to the preparation thereof by reacting alkaline or alkaline earth metals in the presence of finely divided metals or compounds of the third main group of the PTE, the latter having one or more hydride ligands or being converted in situ, under the prevailing reaction conditions, i.e. in the presence of hydrogen gas or another H source, to hydride species. The invention also relates to the use thereof for the preparation of complex hydrides and organometallic compounds.

CATALYST SUPPORTS AND TRANSITION METAL CATALYSTS SUPPORTEDTHEREON

PARAFFIN ALKYLATION CATALYST

Catalyseur à base de silice et d'acide sulfurique et son utilisation en alkylation calalytique d'isobulane et/ou d'isopentane en présence d'au moins une oléfine comportant de 3 à 6 atomes de carbone par molécule.

CATALYSTS, PROCEEDED OF PREPARATION AND THEIR USE

ISOPARAFFIN-OLEFIN ALKYLATION

A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as a blending component of gasoline motor fuel. The novel catalyst comprises a mixture of an anhydrous hydrogen halide and a sulfone. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

MONODENTATE PHOSPHITE AND NICKEL CATALYST COMPOSITION FOR MONOOLEFIN HYDROCYANATION

Catalyst compositions comprising zero-valent nickel and a monodentate phosphite ligand of formula (I) are provided, with a process for the hydrocyanation of monoolefins using these compositions in the presence of a Lewis acid promoter, wherein R is (a) or (b); each R1, independently, is H, C18 alkyl or OR2; R2, independently, is C1-8 alkyl; and R3 is H, C1-8 alkyl or OR2.

MESOSCOPIC ORGANOPOLYSILOXANE PARTICLES WITH CHEMICALLY BOUND METALLIC COMPOUNDS

The invention relates to organopolysiloxane particles which are cross-linked, comprise a single molecule, have chemically bound metallic compounds and an average diameter of from 5 to 200 nm and are soluble in at least one solvent chosen from dichloromethane, pentane, acetone, ethanol and water to at least 1 % by weight. At least 80 % of the particles have a diameter which deviates a maximum of 30 % from the average diameter. The organopolysiloxane particles can be used as catalysts.

SUPPORTED LEWIS ACID CATALYSTS FOR HYDROCARBON CONVERSION REACTIONS

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon at least one relatively strong Lewis acid and at least one relatively weak Lewis acid.

IMPROVED METAL-LIGAND COMPLEX CATALYZED PROCESSES

This invention relates to a process for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises (a) treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid and (b) treating the water which contains phosphorus acidic compounds removed from said reaction product fluid with an acid removal substance sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said water.

LINEAR ALKYLBENZENE FORMATION USING LOW TEMPERATURE IONIC LIQUID AND LONG CHAIN ALKYLATING AGENT

Linear alkylbenzene compositions can be made by using, as a catalyst, a low temperature molten ionic liquid composition comprising a mixture of a metal halide and a base and, as the alkylating agent for the benzene reagent, a chloroalkane having an average carbon atom content of more than six, an olefin having an average carbon atom content of more than ten, or a mixture of the chloroalkane and the olefin. A novel ionic liquid, which is also useful in other reactions normally catalyzed by previously known ionic liquids, comprises the reaction product of a metal halide, such as aluminum trichloride, and an alkyl-containing amine hydrohalide salt selected from the group consisting of a monoalkyl-, a dialkyl-, a trialkyl-containing amine hydrohalide salt (such as trimethylamine hydrochloride), and mixtures thereof.

TRANSITION METAL-CATALYZED REACTIONS BASED ON CHIRAL AMINE OXAZOLINYL LIGANDS

The invention is drawn to novel transition metal catalysts for the pratical synthesis of important chiral molecules. The transition metal catalysts comprise chiral ligands based on chiral amine oxazolinyl ligands. The invention includes methods of making the catalysts, and methods of performing reactions using the catalysts.

Verfahren zur Herstellung von Katalysatoren.

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

Verfahren zur Herstellung von Acetessigsäureestern

Katalytisches Verfahren zur Dimerisierung von Alkenen oder Cycloalkenen

Verfahren zur Dimerisierung von Acrylnitrilverbindungen

Verfahren zur Herstellung von Organosiliciumverbindungen

Procédé d'alcoylation d'arylhydroxydes

Basen-Lösungsmittel-System

Procédé de préparation catalytique d'esters

Verfahren zur Oligomerisation von olefinisch ungesättigten Kohlenwasserstoffen und Anwendung des Verfahrens auf die Polymerisation von 1,3-diolefinisch ungesättigten Kohlenwasserstoffen

Metallhaltiges Katalysatorsystem

Process for the preparation of 2,6-di-tert-butylphenol

PROCEDURE FOR THE DIMERISIEREN OF LOW ALPHA OLEFINEN.

Tri:chloro-silane deriv. prodn. for prepn. of silicone resins, etc.

Process for producing texyltrichlorosilane, comprises reacting trichlorosilane with 2,3-dimethyl-2-butene in the presence of an azo cpd. catalyst of formula R-N=N-R (where R is alkyl, alkylcyano, alkyl ether cyano or cyclic alkylcyano). The azo cpd., is used at a ratio of 0.1 to 50 mole % against 2,3-dimethyl-2-butene, and the reaction is carried out at a temp. of 30 to 150 deg. C under pressure of 1.1 to 10 atmospheres.

IMPROVED METAL-LEGAND COMPLEX CATALYZED PROCESS OF HYDROFORMING

Hydrosilylation reaction catalyst

Ligands for pnicogen chelate complexes with a metal of subgroup viii and use of the complexes as catalysts for hydroformylation, carbonylation, hydrocyanation or hydrogenation

Catalysts and related methods relating to hydrosilylation and hydrosilylation

用于氢氰化的含Ni(0)的催化剂体系

... 本发明涉及一种催化剂体系，包括：a)Ni(0)；b)4-10摩尔式P(X#+[1]R#+[1])(X#+[2]R#+[2])(X#+[3]R#+[3])的化合物(I)/每摩尔a)中的Ni(0)，其中X#+[1]，X#+[2]，X#+[3]互相独立地分别是氧或单键，R#+[1]，R#+[2]，R#+[3]互相独立地是相同或不同的有机基团，以及；c)1-4摩尔的下式(II)化合物(II)/每摩尔a)中的Ni(0)，其中X#+[11]，X#+[12]，X#+[13]，X#+[21]，X#+[22]，X#+[23]互相独立地分别是氧或单键，R#+[11]，R#+[12]是相同或不同的单独或桥连的有机基团，R#+[21]，R#+[22]是相同或不同的单独或桥连的有机基团，Y是桥连基。本发明还涉及一种在至少一种该催化剂体系存在下通过氢氰化含1，3-丁二烯的烃混合物制备具有非共轭C＝C和C＝N键的单烯属C#-[5]-一腈的混合物的方法，以及在至少一种该催化剂体系存在下通过氢氰化具有非共轭C＝C和C＝N键的单烯属C#-[5]-一腈的混合物制备二腈的方法。 ...

Alkene polymerisation catalyst - comprises a gp 5a, 5b or 6b metal fluoride and an organonickel cpd.

Processes and catalysts of dimerisation of 1,3-butadiene and isoprene

PROCESS Of ALKYLATION OF OLEFINS BY ISOPARAFFINS

Novel platinum complexes useful, in particular, as cage handrail and process using the same.

Paraffin alkylation catalyst

PREPARATION D'UN PRODUIT D'ADDITION D'HYDROXYDE DE METAL A UN TRIARYLBORANE A PARTIR DU PRODUIT D'ADDITION D'AMINE A UN TRIARYLBORANE

L'invention se rapporte à la chimie des composés organo-métalliques. Elle concerne un procédé de préparation d'un produit d'addition d'hydroxyde de métal à un triarlborane à partir du produit d'addition d'amine de celui-ci, caractérisé en ce que 1 on fait réagir un mélange alcalin ou alcalino-terreux ou un mélange de ceux-ci, et on élimine de la zone de réaction substantiellement toute l'amine libérée au cours de la réaction, de manière à former le produit d'addition d'hydroxyde de métal. Application à la récupération et à la réutilisation de constituants catalytiques contenus dans des résidus d'hydrocyanation d'oléfines.

Hydrolysis of used ionic liquid catalyst for disposal

We provide a process and apparatus for preparing a used catalyst for disposal, comprising: a. hydrolyzing a used ionic liquid catalyst comprising an anhydrous metal halide to produce a hydrolyzed product; and b. separating the hydrolyzed product into a liquid phase and a solid phase; wherein the liquid phase comprises a non-water-reactive aqueous phase and a hydrocarbon phase; and wherein the solid phase comprises a solid portion of the hydrolyzed product, that is not water reactive. A vessel is used for the hydrolyzing and a separator is used for the separating.

Electrocatalytic alkenes and alkynes dimerizations and trimerizations

The present disclosure relates generally to carbon to carbon coupling processes, and more specifically, to dimerization or trimerization by electrocatalysis of alkenes and alkynes at room temperature.

CATALYST FOR HYDROSILYLATION REACTION, HYDROGENATION REACTION, AND HYDROSILANE REDUCTION REACTION

Provided is a catalyst which comprises a compound represented by formula (1) and which exhibits activity for at least one type of reaction selected from among hydrosilylation reaction or hydrogenation reaction with respect to an aliphatic unsaturated bond and hydrosilane reduction reaction with respect to a carbon-oxygen unsaturated bond or a carbon-nitrogen unsaturated bond. Formula (1): M(L) {M represents Fe, Co, or Ni having an oxidation number of 0, L represents an isocyanide ligand represented by formula (2), n denotes an integer of 1-8, and m denotes an integer of 2-12. Formula (2): (CN)—R(Rrepresents a mono- to trivalent-organic group having 1-30 carbon atoms, optionally being substituted by a halogen atom, and optionally having interposed therein one or more atoms selected from among O, N, S, and Si; and x denotes an integer of 1-3)}. 2. The catalyst according to claim 1 , wherein claim 1 , in the formula (2) claim 1 , x is 1.3. The catalyst according to claim 1 , wherein claim 1 , in the formula (1) claim 1 , when n=1 claim 1 , m=2 claim 1 , 4 claim 1 , or 5 claim 1 , when n=2 to 4 claim 1 , m=an integer of 6 to 10 claim 1 , and when n=8 claim 1 , m=12.4. The catalyst according to claim 1 , wherein claim 1 , in the formula (1) claim 1 , when M is Fe claim 1 , n=1 and m=5 claim 1 , when M is Co claim 1 , n=2 and m=8 claim 1 , and when M is Ni claim 1 , n=1 and m=2 or 4 claim 1 , or n=3 claim 1 , 4 claim 1 , or 8 and m=4 claim 1 , 6 claim 1 , 7 claim 1 , or 12.5. The catalyst according to claim 1 , wherein M in the formula (1) is Fe or Co.6. The catalyst according to claim 1 , wherein Rin the formula (2) is a monovalent hydrocarbon group having 1 to 30 carbon atoms.7. The catalyst according to claim 6 , wherein Rin the formula (2) is at least one hydrocarbon group selected from an alkyl group having 1 to 20 carbon atoms claim 6 , a cycloalkyl group having 3 to 20 carbon atoms claim 6 , an aryl group having 6 to 30 carbon atoms claim 6 , and an alkylaryl group ...

Platinum metallacycles comprising n, p, or as ringatoms and their use as catalysts in 1,2-hydrosilylation reactions of dienes

Described herein are platinum complexes of Formula (I) for hydrosilylation of 1,3-dienes. Methods of using the platinum complexes for selective 1,2-hydrosilylation of 1,3-dienes are also provided.

Process for producing alkylalkoxysilanes

A process produces a C- to C-alkyltrialkoxysilane by hydrosilylation, wherein alkoxy represents methoxy, ethoxy or propoxy. Initially, a mixture is charged of at least one hydroalkoxysilane from the group of hydrotrialkoxysilane, hydroalkyldialkoxysilane, and hydrodialkylalkoxysilane, and a Pt catalyst. The mixture is then heated to a temperature of 30° C. to 60° C. Subsequently, with mixing, an omega-unsaturated or mono-unsaturated C- to C-hydrocarbon, at least one carboxylic acid and at least one alcohol as cocatalysts are added to the mixture. The mixture is then reacted and subsequently worked up to obtain the product. 1. A process for producing a C- to C-alkyltrialkoxysilane by hydrosilylation , wherein alkoxy represents methoxy , ethoxy or propoxy , the process comprising: at least one hydroalkoxysilane selected from the group consisting of hdrotrialkoxysilane, hydroalkyldialkoxysilane, and hydrodialkylalkoxysilane, and', 'a Pt catalyst,, 'a) initially charging a mixture of'}b) heating the mixture to a temperature of 30° C. to 60° C.,{'sub': 3', '20, 'c) subsequently, with mixing, adding/metering an omega-unsaturated or mono-unsaturated C- to C-hydrocarbon, at least one carboxylic acid and at least one alcohol as cocatalysts, and'}d) reacting the mixture and subsequently working up the mixture.2. The process according to claim 1 , wherein the at least one hydroalkoxysilane and the at least one alcohol are employed in a molar ratio of 1:0.01 to 1:0.2.3. The process according to claim 1 , wherein the at least one hydroalkoxysilane and the Pt catalyst are employed in a molar ratio of 1:1×10to 1:1×10.4. The process according to claim 1 , wherein the at least one hydroalkoxvsilane and the at least one carboxylic acid are employed in a molar ratio of 1:1×10to 1:10×10.5. The process according to claim 1 , wherein the at least one hydroalkoxysilane and the C- to C-hydrocarbon are employed in a molar ratio of 1:1 to 1:1.2.6. The process according to claim 1 , wherein ...

Non-precious Metal-based Hyrdosilylation Catalysts Exhibiting Improved Selectivity

Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems. 2. The process of wherein the molar ratio of the Si—H functional groups in the silyl hydride to the alkenyl functional groups in the unsaturated compound is about 1/α.3. The process of wherein the unsaturated compound is selected from the group consisting of trivinylcyclohexanes claim 1 , tetravinylcyclobutane claim 1 , trivinyltrimethylcyclotrisiloxane claim 1 , tetramethyltetravinylcyclotetrasiloxane claim 1 , triallylcyanurate claim 1 , and triallylisocyanurate.4. The process of wherein the unsaturated compound is trivinylcyclohexane.6. The process of wherein the silyl hydride is selected from the group consisting of (CHO)SiH claim 1 , (CHO)SiH claim 1 , (CH)SiOSi(CH)H claim 1 , [(CH)SiO]SiH(CH) claim 1 , [(CH)SiO]OSiH(CH) and [(CH)SiO]OSiH(CH).8. The process of wherein the complex is immobilized on a support.9. A composition produced from the process of comprising a mono-hydrosilylated product and a bis-hydrosilylated product wherein the gravimetric ratio of the mono-hydrosilylated product to the bishydrosilylated product is greater than about 1.8 claim 1 , and wherein the composition contains the complex of Formula (I).10. The composition of wherein the gravimetric ratio of mono-hydrosilylated products to the bis-hydrosilylated products is greater than about 3.11. The composition of wherein the gravimetric ratio of mono-hydrosilylated products to the bis-hydrosilylated products is greater than about 4.14. The process of wherein the silyl hydride is triethoxysilane.15. The process of wherein the silyl hydride is bis(trimethylsiloxy)methylsilane.16. The process of wherein the trivinylcyclohexane is a mixture of trivinylcyclohexane stereoisomers.20. ...

Mononuclear iron complex and organic synthesis reaction using same

Provided is a mononuclear iron complex that comprises an iron-silicon bond that is represented by formula (1) and that exhibits excellent catalyst activity in each of a hydrosilylation reaction, a hydrogenation reaction, and reduction of a carbonyl compound. In formula (1), R 1 -R 6 either independently represent an alkyl group, an aryl group, an aralkyl group or the like that may be substituted with a hydrogen atom or X, or represent a crosslinking substituent in which at least one pair comprising one of R 1 -R 3 and one of R 4 -R 6 is combined. X represents a halogen atom, an organoxy group, or the like. L represents a two-electron ligand other than CO. When a plurality of L are present, the plurality of L may be the same as or different from each other. When two L are present, the two L may be bonded to each other. n and m independently represent an integer of 1 to 3 with the stipulation that n+m equals 3 or 4.

MONONUCLEAR RUTHENIUM COMPLEX AND ORGANIC SYNTHESIS REACTION USING SAME

Provided is a mononuclear ruthenium complex that comprises a ruthenium-silicon bond that is represented by formula (1) and that exhibits excellent catalyst activity in each of a hydrosilylation reaction, a hydrogenation reaction, and reduction of a carbonyl compound. 2. The mononuclear ruthenium complex of wherein L is at least one two-electron ligand selected from the group consisting of molecular hydrogen claim 1 , amine claim 1 , imine claim 1 , nitrogen-containing heterocycle claim 1 , arsine claim 1 , alcohol claim 1 , thiol claim 1 , ether claim 1 , sulfide claim 1 , nitrile claim 1 , isonitrile claim 1 , aldehyde claim 1 , ketone claim 1 , C-Calkene claim 1 , C-Calkyne claim 1 , and triorganohydrosilane.3. The mononuclear ruthenium complex of or wherein n and m each are 2 claim 1 , and L is at least one ligand selected from sulfide claim 1 , thiol claim 1 , and triorganohydrosilane claim 1 , with the proviso that two L's may bond together.4. The mononuclear ruthenium complex of wherein Rto Rare each independently an alkyl claim 3 , aryl or aralkyl group which may be substituted with X which is as defined above claim 3 ,{'sup': 7', '8', '9', '10', '11', '12', '7', '12, "L's are triorganohydrosilanes represented by H—SiRRRand H—SiRRRwherein Rto Rare each independently an alkyl, aryl or aralkyl group which may be substituted with X which is as defined above,"}{'sup': 1', '3', '4', '6', '7', '9', '10', '12', '4', '6', '7', '9, 'at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto R, or at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking substituent, or'}{'sup': 1', '3', '4', '6', '7', '9', '10', '12', '4', '6', '7', '9, 'at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking substituent, and at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking ...

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

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

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

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

Ligand Components, Associated Reaction Products, Activated Reaction Products, Hydrosilylation Catalysts and Hydrosilylation Curable Compositions Including the Ligand Components, and Associated Methods for Preparing Same

A ligand component is formed according to formula (1):RP—X—N═C(R)—Y, wherein Ris Ph or Cyc or a C-Csubstituted or unsubstituted ailkyl group; each Ph is a substituted or unsubstituted phenyl group; each Cyc is a substituted or unsubstituted cycloalkyl group; X is an unsubstituted arylene or a C-Csubstituted or unsubstituted alkylene; Ris H, methyl or Ph; and Y N is pyridyl, 6-phenylpyridyl or 6-methylpyridyl; with the proviso that when X is a Csubstituted or unsubstituted alkylene and Y is pyridyl, Ris methyl or Ph. A reaction product including the ligand component and a metal precursor is prepared by combining the ligand component with the metal precursor. An activated reaction product is formed by activating the reaction product as a hydrosilylation catalyst. 110-. (canceled)11. A reaction product comprising [{'br': None, 'sup': 1', '2, 'sub': '2', 'RP—X—N═C(R)—Y\u2003\u2003(1),'}, [{'sup': '1', 'sub': 1', '20, 'Ris Ph or Cycor a C-Csubstituted or unsubstituted alkyl group;'}, 'each Ph is a substituted or unsubstituted phenyl group;', 'each Cyc is a substituted or unsubstituted cycloalkyl group;', {'sub': 2', '3, 'X is an unsubstituted arylene or a C-Csubstituted or unsubstituted alkylene;'}, {'sup': '2', 'Ris H, methyl or Ph; and'}, 'Y is pyridyl or 6-phenylpyridyl or 6-methylpyridyl;', {'sub': '2', 'sup': '2', 'with the proviso that when X is a Csubstituted or unsubstituted alkylene and Y is pyridyl, Ris methyl or Ph; and'}], 'wherein], 'a ligand component according to formula (1) {'br': None, 'sub': x', 'n, '[M-A]\u2003\u2003(2),'}, 'a metal precursor according to formula (2) M is a metal selected from iron, cobalt, manganese, nickel, and ruthenium;', 'each A is independently a displaceable substituent;', 'subscript x is an integer with a value ranging from 1 to a maximum valence number of M; and', 'n is 1 or 2., 'wherein12. The reaction product of claim 11 , wherein the metal precursor is selected from iron (II) bromide claim 11 , cobalt (II) chloride claim 11 ...

Curable silicone compositions

The present invention relates to silicone compositions which can be crosslinked thermally by hydrosilylation, a process for producing them, platinum catalysts used for this purpose and the use of the crosslinkable compositions.

Method for preparing reactive sealant resin

Disclosed by the present invention is a method for preparing a reactive sealant resin, the method comprising: (1) under the action of an alkali catalyst, polymerizing a hydroxyl-containing initiator with an epoxy compound to obtain a polyether polyol; (2) adding an alkoxide reagent and a halogenated end-capping agent containing a double bond to the polyether polyol obtained in step (1) for reaction, so as to obtain a crude double-bonded polyether product, and refining the crude product to obtain a modified polyether product; and (3) subjecting the modified polyether and hydrogen-containing silane to silane end-capping reaction under the action of a hydrosilylation catalyst, so as to obtain the target product, i.e., a reactive sealant resin. The resin has excellent properties as well as good adhesion and paintability.

TRANSITION METAL COMPLEXES FOR ENANTIOSELECTIVE CATALYSIS OF CARBON-CARBON, CARBON-HETEROATOM, AND CARBON-HYDROGEN BOND FORMING REACTIONS

In some embodiments, the present disclosure pertains to a compound, comprising a transition metal complex having the formula Φ-[M (x,y)-L(w,v)-L(t,u)-L]AnZ. In an embodiment of the present disclosure Φ may be Λ. In another embodiment Φ may be Λ. In some embodiments of the present disclosure, M is a transition metal. In a related embodiment, p is an integer corresponding to the oxidation state of M. In some embodiments of the present disclosure, each of x, y, w, v, t, and u independently comprise R. In other embodiments, each of x, y, w, v, t, and u independently comprise S. In an embodiment of the present disclosure, each of L, L, and Lindependently is a ligand comprising a substituted diamine. In some embodiments, An comprises a lipophilic anion, where m is from 1 to 3, and where Z comprises an optional second anion. 1. A compound , comprising a transition metal complex having the formula Φ-[M ((x ,y)-L)((w ,v)-L)((t ,u)-L)]AnZ , wherein Φ is Λ or Δ , wherein M is a transition metal , wherein p is an integer corresponding to the oxidation state of M , wherein each of x , y , w , v , t , and u independently comprises one of R and S , wherein each of Land Lindependently is a ligand comprising ethylene diamine , wherein Lis a ligand comprising an pendant Lewis base derivative of ethylene diamine , wherein c is from 1 to 3 , wherein b is from 0 to 2 , wherein An comprises a lipophilic anion , wherein m is from 1 to 3 , and wherein Z comprises a second anion.2. The compound according to claim 1 , wherein the pendant Lewis base derivative of ethylene diamine comprises EN(CH2)NRR claim 1 , wherein EN represents ethylene diamine claim 1 , and wherein n is from 2 to 4.3. The compound according to claim 1 , wherein the transition metal is selected from the group consisting of cobalt claim 1 , iron claim 1 , nickel claim 1 , chromium claim 1 , manganese claim 1 , molybdenum claim 1 , tungsten claim 1 , rhenium claim 1 , ruthenium claim 1 , technetium claim 1 , osmium claim 1 ...

MONONUCLEAR RUTHENIUM COMPLEX AND ORGANIC SYNTHESIS REACTION USING SAME

A neutral or cationic mononuclear ruthenium divalent complex represented by formula (1) can actualize exceptional catalytic activity in at least one reaction among a hydrosilylation reaction, hydrogenation reaction, and carbonyl compound reduction reaction. 2. The neutral or cationic mononuclear divalent ruthenium complex of claim 1 , wherein L is at least one type of two-electron ligand selected from the group consisting of molecular hydrogen claim 1 , amines claim 1 , imines claim 1 , nitrogen-containing heterocycles claim 1 , phosphines claim 1 , phosphites claim 1 , arsines claim 1 , alcohols claim 1 , thiols claim 1 , ethers claim 1 , sulfides claim 1 , nitriles claim 1 , isonitriles claim 1 , aldehydes claim 1 , ketones claim 1 , alkenes of 2 to carbon atoms claim 1 , alkynes of 2 to 30 carbon atoms and triorganohydrosilanes.4. The neutral or cationic mononuclear divalent ruthenium complex of claim 3 , wherein Lis at least one type of two-electron ligand selected from the group consisting of isonitriles claim 3 , nitrogen-containing heterocycles and phosphites (with the proviso that when a plurality of Lligands are present claim 3 , two Lligands may be bonded to one another).5. The neutral or cationic mononuclear divalent ruthenium complex of or claim 3 , wherein Lis a triorganohydrosilane (with the proviso that when a plurality of Lligands are present claim 3 , two Lligands may be bonded to one another).6. The neutral or cationic mononuclear divalent ruthenium complex of claim 3 , wherein mand mare both 2.7. The neutral or cationic mononuclear divalent ruthenium complex of claim 6 , wherein Rto Rare each independently an alkyl claim 6 , aryl or aralkyl group that may be substituted with X claim 6 , which is as defined above claim 6 , and{'sup': 2', '7', '8', '9', '10', '11', '12', '7', '12, 'the Lligands are triorganohydrosilanes of the formulas H—SiRRRand H—SiRRR(wherein Rto Rare each independently an alkyl, aryl or aralkyl group that may be substituted with ...

PDO OR BMTZ LIGAND FOR SUPPORTED COORDINATED PT HYDROSILYLATION CATALYSTS

The invention describes single-site metal catalysts such as Pt single-site centers on powdered oxide supports with a 1,10-phenanthroline-5,6-dione (PDO) or bis-pyrimidyltetrazine (BMTZ) ligand on powdered MgO, AlO, or CeO. 2. The single site catalyst system of claim 1 , wherein the support is selected from the group consisting of powdered MgO claim 1 , AlO claim 1 , and CeO.3. The single site catalyst system of claim 2 , wherein the support is MgO.4. The single site catalyst system of claim 2 , wherein the support is AlO.5. The single site catalyst system of claim 2 , wherein the support is CeO.7. The process of claim 6 , wherein the support is selected from the group consisting of powdered MgO claim 6 , AlO claim 6 , and CeO.8. The process of claim 7 , wherein the support is MgO.9. The process of claim 7 , wherein the support is AlO.10. The process of claim 6 , wherein the vinyl terminated alkene is 1-octene11. The process of claim 6 , wherein the hydrosilylation agent comprises dimethoxymethylsilane.13. The single site catalyst system of claim 12 , wherein the support is selected from the group consisting of powdered MgO claim 12 , AlO claim 12 , and CeO.14. The single site catalyst system of claim 13 , wherein the support is MgO.15. The single site catalyst system of claim 13 , wherein the support is AlO.16. The single site catalyst system of claim 13 , wherein the support is CeO.17. A process comprising:{'claim-ref': {'@idref': 'CLM-00012', 'claim 12'}, '(a) contacting the supported catalyst system of , a vinyl terminated alkene and a hydrosilylation agent under hydrosilylation conditions; and'}(c) hydrosilylating the vinyl terminated alkene to form a hydrosilylated alkyl product.18. The process of claim 17 , wherein the support is selected from the group consisting of powdered MgO claim 17 , AlO claim 17 , and CeO.19. The process of claim 17 , wherein the vinyl terminated alkene is 1-octene20. The process of claim 17 , wherein the hydrosilylation agent ...

Chiral Imidazolium Salts for Asymmetric Catalysis

Planar chiral N-heterocyclic carbenes that incorporate an iron sandwich complex into the NHC framework are disclosed for use in organocatalytic and transition metal-catalyzed reactions. 1. A catalyst compound comprising a N-heterocyclic carbene component and an iron complex component.2. A catalyst compound according to claim 1 , wherein the N-heterocyclic carbene component is an imidazolium component.3. A catalyst compound according to claim 1 , wherein the iron complex component is a ferrocenyl component.4. A catalyst compound according to claim 1 , wherein the iron complex component is a ferrocenyl component.5. A catalyst compound according to claim 1 , the catalyst compound being planar.6. A catalyst compound according to claim 1 , the catalyst compound being chiral.8. A method of preparing an addition product of a homoenolate and an α-ketoester comprising contacting the homoenolate and the α-ketoester with a compound of and affording an annulation product.9. A method for nickel-catalyzed reductive coupling of an aldehyde and to an alkyne comprising contacting the aldehyde and the alkyne with a nickel catalyst and a compound of and affording an allylic alcohol.10. A method according to claim 9 , wherein the allylic alcohol is formed in an enantiometeric ratio of about 93:7.11. A method according to claim 9 , wherein the allylic alcohol is formed with about 20:1 regioselectivity.12. A method for copper-catalyzed conjugate borylation of an α claim 1 ,β-unsaturated ester comprising complexing a compound of with CuCl to form a catalytic complex claim 1 , contacting the α claim 1 ,β-unsaturated ester and a boron-containing compounds with the catalytic complex claim 1 , and affording a conjugate product.14. A method according to claim 13 , wherein the boron-containing compound is bis(pinacolato)diboron. This application claims priority to and the benefit of application Ser. No. 62/050,565 filed Sep. 15, 2014—the entirety of which is incorporated herein by reference. ...

Surfactant-Enabled Transition Metal-Catalyzed Chemistry

In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions. 114.-. (canceled)16. The method of claim 15 , wherein the transition metal mediated bond formation is performed in an aqueous solvent.17. The method of claim 15 , wherein the transition metal catalyst is selected from an organo-palladium or -nickel reagent claim 15 , organo-copper or -gold reagent claim 15 , organo-rhodium or -iridium complex claim 15 , or an organo-ruthenium claim 15 , -iron claim 15 , or -osmium reagent claim 15 , wherein the catalyst is capable of promoting cross-coupling reactions claim 15 , or other reactions characteristic of catalysis by these metals claim 15 , that form a carbon-carbon claim 15 , carbon-heteroatom or carbon-hydrogen bond.18. The method of claim 15 , wherein Yis methyl.19. The method of claim 15 , wherein the solubilizing agent is selected from the group consisting of Poloxamer 188 claim 15 , Polysorbate 80 claim 15 , Polysorbate 20 claim 15 , Vit E-TPGS claim 15 , Solutol HS 15 claim 15 , PEG-40 Hydrogenated castor oil (Cremophor RH40) claim 15 , PEG-35 Castor oil (Cremophor EL) claim 15 , PEG-8-glyceryl capylate/caprate (Labrasol) claim 15 , PEG-32-glyceryl laurate (Gelucire 44/14) claim 15 , PEG-32-glyceryl palmitostearate (Gelucire 50/13); Polysorbate 85 claim 15 , polyglyceryl-6-dioleate (Caprol MPGO) claim 15 , mixtures of high and low HLB emulsifiers; sorbitan monooleate (Span 80) claim 15 , Capmul MCM claim 15 , Maisine 35-1 claim 15 , glyceryl monooleate claim 15 , glyceryl monolinoleate claim 15 , PEG-6-glyceryl oleate (Labrafil M 1944 CS) claim 15 , PEG-6-glyceryl linoleate (Labrafil M 2125 CS) claim 15 , oleic acid claim 15 , linoleic acid claim 15 , propylene glycol monocaprylate (e.g. Capmul PG-8 or Capryol ...

Iridium Containing Hydrosilylation Catalysts and Compositions Containing the Catalysts

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

PROCESS FOR PRODUCING COMPOSITIONS COMPRISING PLATINUM

The invention relates to a process for producing preparations including one or more mononuclear platinum complex compounds of formula (X), one or more compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms as compound(s) from compound class II, and one or more olefinically unsaturated compound(s) selected from olefin1 and olefin2 as compound(s) from compound class III, by contacting at least one compound from each of compound classes II and III with one or more dinuclear platinum (II) compound(s) as compound(s) from compound class I. The process includes performing a first step of preparing a mixture by adding together at least two compounds selected from two different compound classes and a subsequent step of admixing the mixture obtained in the first step with one or more compounds of the still absent compound class 1. A process for producing preparations comprising one or more mononuclear platinum complex compounds of formula (X){'br': None, 'sub': x', 'y', '2, 'sup': 2+', '−, '[olefin1][olefin2]Pt Hal,'} Hal=F, Cl, Br or I,', 'x=1 or 2,', 'y=0 or 1,', 'olefin1=a compound comprising at least one olefinic unsaturation and fewer than two oxygen atoms,', 'olefin2=a compound comprising an olefinic unsaturation and fewer than two oxygen atoms,', 'with the proviso that when olefin1 comprises at least two olefinic unsaturations, x=1, and x+y=1, and when olefin1 comprises only one olefinic unsaturation, x+y=2,', 'one or more compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms as compound(s) from compound class II,', 'and one or more olefinically unsaturated compound(s) selected from olefin1 and olefin2 as compound(s) from compound class III, said process comprising:', 'contacting at least one compound from each of compound classes II and III with one or more dinuclear platinum (II) compound(s) as compound(s) from compound class I, wherein said contacting comprises, in a first step, preparing a mixture by adding ...

COBALT CATALYSTS AND THEIR USE FOR HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION

Disclosed herein are cobalt complexes containing pyridine di-imine ligands and chelating alkenyl-modified silyl ligands, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation. 2. The complex of claim 1 , wherein Z is O claim 1 , and Rand Rare independently chosen from a C1-C4 alkyl or a C6-C10 aryl.3. The complex of claim 1 , wherein Z is O claim 1 , and Rand Rare independently chosen from methyl or phenyl.4. The complex of claim 1 , wherein Rand Rare independently chosen from a C1-C8 linear claim 1 , branched claim 1 , or cyclic alkyl claim 1 , a C6-C18 aryl claim 1 , or a substituted C6-C18 aryl.6. The complex of claim 5 , wherein R claim 5 , R claim 5 , and Rare a C1-C4 alkyl claim 5 , and Rand Rare hydrogen.8. The complex of claim 1 , wherein the complex is immobilized on a support.9. The complex of claim 8 , wherein the support is chosen from carbon claim 8 , silica claim 8 , alumina claim 8 , MgCl claim 8 , zirconia claim 8 , polyethylene claim 8 , polypropylene claim 8 , polystyrene claim 8 , poly(aminostyrene) claim 8 , sulfonated polystyrene claim 8 , or a combination of two or more thereof.10. The complex of claim 8 , wherein at least one of R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , and/or Rcomprises a functional group that covalently bonds with the support.13. The process of wherein Rand Rare independently methyl claim 12 , ethyl or isopropyl groups and Ris hydrogen or methyl.14. The process of wherein R claim 12 , R claim 12 , and Rare each methyl.15. The process of wherein Rand Rare independently methyl or phenyl groups.16. The process of wherein R claim 12 , R claim 12 , and Rare hydrogen.18. The process of further comprising removing the complex and/or derivatives thereof from the dehydrogenative silylated product.19. The process of claim 11 , wherein the dehydrogenatively silylated product ...

CATIONIC GERMANIUM(II) COMPOUNDS, PROCESS FOR PREPARING SAME, AND THEIR USE AS CATALYSTS IN HYDROSILYLATION

A mixture M includes at least one compound A, selected from (a1) a compound of the general formula (I) and/or (a2) a compound of the general formula (I′), at least one compound B, selected from (b1) a compound of the general formula (II) and/or (b2) a compound of the general formula (II′) and/or (b3) a compound of the general formula (II″), and at least one compound C, selected from cationic germanium(II) compounds of the general formula (III). 123-. (canceled)25. The mixture M as claimed in claim 24 , wherein in formula (I) the radicals R claim 24 , Rand Rare each independently selected from the group consisting of (i) hydrogen claim 24 , (ii) chlorine claim 24 , (iii) unsubstituted or substituted C-C-hydrocarbon radical claim 24 , and (iv) unsubstituted or substituted C-C-hydrocarbonoxy radical claim 24 , wherein substituted has the same definition as before; and in formula (I′) the radicals Rare each independently selected from the group consisting of chlorine claim 24 , C-C-alkyl radical claim 24 , C-C-alkenyl radical claim 24 , phenyl claim 24 , and C-C-alkoxy radical claim 24 , and the indices a claim 24 , b claim 24 , b′ claim 24 , c claim 24 , c′ claim 24 , c″ claim 24 , d claim 24 , d′ claim 24 , d″ claim 24 , d′″ are each independently selected from an integer in the range of 0 to 1.26. The mixture M as claimed in claim 25 , wherein in formula (I) the radicals R claim 25 , Rand Rare each independently selected from the group consisting of (i) hydrogen claim 25 , (ii) chlorine claim 25 , (iii) C-C-alkyl radical claim 25 , (iv) C-C-alkenyl radical claim 25 , (v) phenyl claim 25 , and (vi) C-C-alkoxy radical; and in formula (I′) the radicals Rare each independently selected from the group consisting of chlorine claim 25 , methyl claim 25 , methoxy claim 25 , ethyl claim 25 , ethoxy claim 25 , n-propyl claim 25 , n-propoxy claim 25 , and phenyl claim 25 , and the indices a claim 25 , b claim 25 , b′ claim 25 , c claim 25 , c′ claim 25 , c″ claim 25 , d claim ...

IRON COMPOUND USEFUL AS HYDROSILYLATION, DEHYDROGENATIVE SILYLATION AND CROSSLINKING CATALYST FOR SILICONE COMPOSITIONS

An object of the present invention is the use of iron compounds as hydrosilylation and dehydrogenative silylation catalysts. 4- The method according to claim 1 , wherein the molar concentration of compound C is from 0.01% to 15% claim 1 , preferably from 0.05% to 10% claim 1 , for example from 0.1% to 4% relative to the total number of moles of unsaturations borne by the unsaturated compound A.5- The method according to wherein said method does not use platinum claim 1 , palladium claim 1 , ruthenium or rhodium-based compounds.6- The method according to wherein the compound B comprising at least one silyl hydride function is selected from the group consisting of:a silane or polysilane compound comprising at least one hydrogen atom bound to a silicon atom;an organopolysiloxane compound comprising at least one hydrogen atom bound to a silicon atom, preferably an organopolysiloxane compound comprising at least two silyl hydride functions per molecule; andan organic polymer comprising silyl hydride functions in terminal positions.8- (canceled)12- A crosslinked silicone material Y obtained by heating at a temperature ranging from 15° C. to 150° C. claim 10 , preferably from 20° C. to 130° C. claim 10 , still more preferably between 40° C. to 110° C. claim 10 , a cross-linkable composition X according to . The field of the invention is that of reactions between an unsaturated compound and a compound comprising at least one hydrogen atom bound to a silicon atom. It can involve hydrosilylation reactions also called polyadditions and/or dehydrogenative silylation reactions. The invention relates to the use of a new type of catalyst for these reactions. More specifically, the present invention relates to the use of iron compounds as hydrosilylation and dehydrogenative silylation catalysts. These catalysts also serve to harden silicone compositions by crosslinking.During a hydrosilylation reaction (also called polyaddition), a compound comprising at least one unsaturation ...

METHOD FOR PRODUCING CATIONIC SILICON(II) COMPOUNDS

Cationic silicon (ii) compounds are easily formed by reaction of π-bonded cyclopentadienyl silicon (II) compound with a carbo-cation. The compounds have catalytic uses, particularly as a hydrosilylation catalyst. 17.-. (canceled)9. The method of claim 8 , wherein X is selected from the group consisting of [ClO] claim 8 , [OTf] claim 8 , [FSO] and anions which are halides of the elements boron claim 8 , aluminum claim 8 , gallium claim 8 , germanium claim 8 , tin claim 8 , phosphorus claim 8 , arsenic and antimony claim 8 , wherein individual or a plurality of halogen substituents of the halides are optionally replaced with carbon-containing radicals claim 8 , a carborate anion claim 8 , and mixtures thereof.10. The method of claim 8 , wherein Rand Rindependently of one another denote hydrogen or C1-C3-alkyl radicals.11. The method of claim 9 , wherein Rand Rindependently of one another denote hydrogen or C1-C3-alkyl radicals.12. The method of claim 8 , wherein the radicals Rare selected from the group consisting of unsubstituted or halogen-atom-substituted phenyl radicals claim 8 , tolyl. radicals claim 8 , xylyl radicals claim 8 , mesitylenyl radicals claim 8 , ethylphenyl radicals claim 8 , and mixtures thereof.13. The method of claim 9 , wherein the radicals Rare selected from the group consisting of unsubstituted or halogen-atom-substituted phenyl radicals claim 9 , tolyl radicals claim 9 , xylyl radicals claim 9 , mesitylenyl radicals claim 9 , ethylphenyl radicals claim 9 , and mixtures thereof.14. The method of claim 10 , wherein the radicals Rare selected from the group consisting of unsubstituted or halogen-atom-substituted phenyl. radicals claim 10 , tolyl radicals claim 10 , xylyl radicals claim 10 , inesitylenyl radicals claim 10 , ethyiphenyl radicals claim 10 , and mixtures thereof.15. The method of claim 11 , wherein the radicals Rare selected from the group consisting of unsubstituted or halogen-atom-substituted phenyl radicals claim 11 , tolyl ...

COBALT CATALYSTS AND THEIR USE FOR HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION

Disclosed herein are cobalt complexes containing terpyridine ligands and chelating alkene-modified silyl ligands, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation. 2. The complex of claim 1 , wherein Z is O.3. The complex of claim 2 , wherein Rand Ris independently chosen from a C1-C8 linear claim 2 , branched or cyclic alkyl or a C6-C18 aryl.4. The complex of claim 2 , wherein Rand Rare methyl claim 2 , and R-Rare hydrogen.5. The complex of claim 2 , wherein Rand Rare phenyl claim 2 , and R-Rare hydrogen.8. The complex of claim 1 , wherein the complex is immobilized on a support.9. The complex of claim 8 , wherein the support is chosen from carbon claim 8 , silica claim 8 , alumina claim 8 , MgCl claim 8 , zirconia claim 8 , polyethylene claim 8 , polypropylene claim 8 , polystyrene claim 8 , poly(aminostyrene) claim 8 , sulfonated polystyrene claim 8 , or a combination of two or more thereof.10. The complex of claim 8 , wherein at least one of R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , R claim 8 , and/or Rcomprises a functional group that covalently bonds with the support.12. The process of claim 11 , wherein Z is O.13. The process of claim 12 , wherein Rand Ris independently chosen from a C1-C8 linear branched or cyclic alkyl or a C6-C18 aryl.14. The process of claim 12 , wherein Rand Rare methyl claim 12 , and R-Rare hydrogen.15. The process of claim 12 , wherein Rand Rare phenyl claim 12 , and R-Rare hydrogen.18. The process of claim 11 , further comprising removing the complex and/or derivatives thereof from the silylated product.19. The process of claim 11 , wherein the silylated product comprises a hydrosilylation product.20. The process of claim 11 , wherein the silylated product comprises a dehydrogenatively silylated product.21. The process of claim 11 , ...

COBALT CATALYSTS AND THEIR USE FOR HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION

Disclosed herein are cobalt terpyridine complexes containing a single ligand coordinated to the cobalt, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation. 2. The complex of claim 1 , wherein R-Rare hydrogen.3. The complex of claim 1 , wherein L is —C(R)—Si(R)where Rand Rare independently hydrogen claim 1 , a C1-C18 alkyl claim 1 , a C1-C18 substituted alkyl claim 1 , a C6-C18 aryl claim 1 , a substituted C6-C18 aryl claim 1 , or an inert substituent claim 1 , and Rand Roptionally contain at least one heteroatom.4. The complex of claim 4 , wherein R-Rare hydrogen.6. The complex of claim 1 , wherein at least one of R-Ris chosen from an aryl group or a substituted aryl group.7. The complex of claim 6 , wherein the substituted aryl group is chosen from tolyl claim 6 , xylyl claim 6 , naphthyl claim 6 , mesityl claim 6 , aniline claim 6 , fluorophenyl claim 6 , or a combination of two or more thereof.8. The complex of claim 1 , wherein R-Rand R-Rare hydrogen claim 1 , and Ris chosen from pyrrolidino claim 1 , flourophenyl claim 1 , aniline claim 1 , or mesityl.11. The process of claim 10 , wherein R-Rare hydrogen.12. The process of claim 10 , wherein L is —C(R)—Si(R)where Rand Rare independently hydrogen claim 10 , a C1-C18 alkyl claim 10 , a C1-C18 substituted alkyl claim 10 , a C6-C18 aryl claim 10 , a substituted C6-C18 aryl claim 10 , or an inert substituent claim 10 , and Rand Roptionally contain at least one heteroatom.13. The process of claim 12 , wherein R-Rare hydrogen.15. The process of claim 10 , wherein at least one of R-Ris chosen from an aryl group or a substituted aryl group.16. The process of claim 15 , wherein the substituted aryl group is aniline.18. The process of claim 10 , further comprising removing the complex and/or derivatives thereof from the silylated product.19. The process of claim 10 , wherein the silylated ...

NOVEL CATALYSTS HAVING A SILENE LIGAND

A subject matter of the present invention is the use as catalyst, in particular in hydrosilylation, of a metal complex including at least one metal atom chosen from the metals of Groups 8, 9 and 10 of the Periodic Table of the Elements and one or more ligands, characterized in that at least one ligand includes a silene structure. 1. A catalyst of a metal complex comprising at least one metal atom chosen from the metals from the group consisting of Pt , Pd , Ni , Rh , Ru , Os and Ir , wherein at least one ligand comprises a silene structure which is a silene-phosphorus ylide.4. The catalyst of the metal complex as claimed claim 1 , wherein the metal complex is used as catalyst for a hydrosilylation reaction.5. A process for the hydrosilylation of an unsaturated compound comprising at least one alkene functional group and/or at least one alkyne functional group with a compound comprising at least one hydrosilyl functional group claim 1 , said process is catalyzed by a metal complex comprising at least one metal atom chosen from the metals from the group consisting of Pt claim 1 , Pd claim 1 , Ni claim 1 , Rh claim 1 , Ru claim 1 , Os and Ir claim 1 , wherein at least one ligand comprises a silene structure which is a silene-phosphorus ylide.6. The process as claimed in claim 5 , in which the compound comprising at least one hydrosilyl functional group is chosen from the group consisting of:a silane or polysilane compound comprising at least one hydrogen atom bonded to a silicon atom;a siloxane compound comprising at least one hydrogen atom bonded to a silicon atom comprising, per molecule, at least two hydrosilyl functional groups;an organic polymer comprising hydrosilyl functional groups at the terminal positions.7. A composition comprising:at least one unsaturated compound comprising at least one alkene functional group and/or at least one alkyne functional group,at least one compound comprising at least one hydrosilyl functional group, anda catalyst chosen from the ...

Molybdenum Containing Hydrosilylation Reaction Catalysts and Compositions Containing the Catalysts

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

NOVEL CATALYSTS WITH A SILYLENE LIGAND

A metal complex including at least one metal atom chosen from the metals of Groups 8, 9 and 10 of the Periodic Table of the Elements and one or more ligands, wherein at least one ligand includes a cyclic silylene structure and a Lewis base which donates an electron pair to the silicon atom of the cyclic silylene structure. 1. A metal complex comprising at least one metal atom chosen from the metals from the group consisting of Pt , Pd , Ni , Rh , Ru , Os and Ir , wherein at least one ligand comprises a cyclic silylene structure which is a silacyclopropylidene and a Lewis base which donates an electron pair to the silicon atom of said cyclic silylene structure.2. The metal complex as claimed in claim 1 , wherein said Lewis base of the ligand is chosen from the group consisting of carbon monoxide claim 1 , water claim 1 , alcohols claim 1 , ethers claim 1 , thiols claim 1 , sulfides claim 1 , phosphines claim 1 , phosphoalkenes claim 1 , phosphoalkynes claim 1 , amines claim 1 , imines and nitriles.3. The metal complex as claimed in claim 1 , wherein the Lewis based included in said ligand is bonded to at least one atom of the cyclic silylene structure other than the silicon atom in the silylene form.6. The metal complex as defined in is used as catalyst.7. The metal complex claimed in claim 6 , is used as catalyst for hydrosilylation reaction.8. A process for the hydrosilylation of an unsaturated compound comprising at least one alkene functional group and/or at least one alkyne functional group with a compound comprising at least one hydrosilyl functional group claim 1 , said process is catalyzed by a metal complex as defined in .9. The process as claimed in claim 8 , in which the compound comprising at least one hydrosilyl functional group is chosen from the group consisting of:a silane or polysilane compound comprising at least one hydrogen atom bonded to a silicon atom;a siloxane compound comprising at least one hydrogen atom bonded to a silicon per molecule, at ...

TRANSITION METAL COMPLEXES FOR ENANTIOSELECTIVE CATALYSIS OF CARBON-CARBON, CARBON-HETEROATOM, AND CARBON-HYDROGEN BOND FORMING REACTIONS

In some embodiments, the present disclosure pertains to a compound, comprising a transition metal complex having the formula Φ-[M(x,y)-L(w,v)-L(t,u)-L]AnZ. In an embodiment of the present disclosure Φ may be A. In another embodiment Φ may be Δ. In some embodiments of the present disclosure, M is a transition metal. In a related embodiment, p is an integer corresponding to the oxidation state of M. In some embodiments of the present disclosure, each of x, y, w, v, t, and u independently comprise R. In other embodiments, each of x, y, w, v, t, and u independently comprise S. In an embodiment of the present disclosure, each of L, L, and Lindependently is a ligand comprising a substituted diamine. In some embodiments, An″ comprises a lipophilic anion, where m is from 1 to 3, and where Z comprises an optional second anion. 1. A compound , comprising a transition metal complex having the formula Φ-[M(x ,y)-L(w ,v)-L(t ,u)-L]AnZ , wherein Φ is Λ or Δ , wherein M is a transition metal , wherein p is an integer corresponding to the oxidation state of M , wherein each of x , y , w , v , t , and u independently comprises one of R and S , wherein each of L , L , and Lindependently is a ligand comprising a substituted diamine , wherein An comprises a lipophilic anion , wherein m is from 1 to 3 , and wherein Z comprises an optional second anion.2. The compound according to claim 1 , wherein each of L claim 1 , L claim 1 , and Lindependently is a ligand selected from the group consisting of diphenylethylene diamine claim 1 , diphenylethylene diamine derivatives claim 1 , and cyclohexanediamine.3. The compound according to claim 1 , wherein the transition metal is selected from the group consisting of cobalt claim 1 , iron claim 1 , nickel claim 1 , chromium claim 1 , manganese claim 1 , molybdenum claim 1 , tungsten claim 1 , rhenium claim 1 , ruthenium claim 1 , technetium claim 1 , osmium claim 1 , rhodium claim 1 , iridium claim 1 , platinum claim 1 , and palladium.4. The ...

PROCESS FOR PREPARING PLATINUM ORGANOSILOXANE COMPLEXES USING AN ENONE ADDITIVE

A platinum organosiloxane complex is prepared by a process including combining A) a platinous halide; B) a ketone; C) an enone additive distinct from any other starting materials or rearrangement products thereof; and D) a polyorganosiloxane having, per molecule, 2 to 4 silicon bonded terminally unsaturated hydrocarbon groups having from 2 to 6 carbon. The platinum organosiloxane complex prepared by the process is useful as a hydrosilylation catalyst. 2. The process of claim 1 , where the platinous halide is platinum dichloride.3. The process of claim 1 , where the ketone is methyl ethyl ketone.4. The process of claim 3 , where the enone additive is selected from the group consisting of: (C3) 4-Penten-2-one; (C4) 3-Methyl-4-penten-2-one; (C5) 4-Methyl-4-penten-2-one; (C6) 3 claim 3 ,3-Dimethyl-4-penten-2-one; (C7) 3 claim 3 ,3 claim 3 ,4-Trimethyl-4-penten-2-one; (C8) (4Z)-3 claim 3 ,4-Dimethyl-4-hexen-2-one; (C9) 2-(1-cyclohexenyl)cyclohexanone; (C10) 3-Buten-2-one; (C11) (3E)-3-Penten-2-one; (C12) (3E)-3-Methyl-3-penten-2-one; (C13) 4-Methyl-3-penten-2-one; and two or more of C3) claim 3 , (C4) claim 3 , (C5) claim 3 , (C6) claim 3 , (C7) claim 3 , (C8) claim 3 , (C9) claim 3 , (C10) claim 3 , (C11) claim 3 , (C12) claim 3 , and (C13).5. The process of claim 1 , where the enone additive is selected from the group consisting of: (C1) (4E)-3 claim 1 ,4-Dimethyl-4-hexen-2-one; (C2) (5E)-5-Methyl-5-hepten-3-one; (C3) 4-Penten-2-one; (C4) 3-Methyl-4-penten-2-one; (C5) 4-Methyl-4-penten-2-one; (C6) 3 claim 1 ,3-Dimethyl-4-penten-2-one; (C7) 3 claim 1 ,3 claim 1 ,4-Trimethyl-4-penten-2-one; (C8) (4Z)-3 claim 1 ,4-Dimethyl-4-hexen-2-one; (C9) 2-(1-cyclohexenyl)cyclohexanone; (C10) 3-Buten-2-one; (C11) (3E)-3-Penten-2-one; (C12) (3E)-3-Methyl-3-penten-2-one; (C13) 4-Methyl-3-penten-2-one; and two or more of (C1) claim 1 , (C2) claim 1 , (C3) claim 1 , (C4) claim 1 , (C5) claim 1 , (C6) claim 1 , (C7) claim 1 , (C8) claim 1 , (C9) claim 1 , (C10) claim 1 , (C11) claim 1 , ( ...

A METHOD OF SYNTHESISING A PT(II) COMPLEX; A PT(II) COMPLEX; USE OF SUCH A COMPLEX AS A PHOTOACTIVATABLE CATALYST IN A HYDROSILYLATION REACTION

A method of synthesising a Pt(II) complex includes a first step of preparing a reaction mixture comprising a water-soluble hexachloroplatinate salt and a compound according to Formula I′, or salt thereof, and allowing the water-soluble hexachloroplatinate salt and the compound according to Formula I′ to react and a second step of adding a further quantity of the compound according to Formula I′, or a salt thereof, to the reaction mixture. Products of this method are Pt(II) complexes according to Formula I The Pt(II) complexes are useful as catalysts in hydrosilylation reactions. 2. The method of claim 1 , further comprising an intermediate step claim 1 , after the first step but before the second step claim 1 , of adding a reducing agent to the reaction mixture.3. The method of claim 1 , wherein in the first step the compound according to Formula I′ is used in stoichiometric excess.4. The method of claim 1 , wherein in the first step the reaction mixture further comprises a solvent selected from water or water mixed with an alcohol.57-. (canceled)8. The method of claim 1 , wherein the water-soluble hexachloroplatinate salt is selected from Na[PtCl] and chloroplatinic acid.9. The method of claim 1 , wherein the first step further comprises leaving the reaction mixture to react for at least 10 minutes before any further step is carried out.10. (canceled)11. The method of claim 1 , wherein the compound according to Formula I′ and the water-soluble hexachloroplatinate salt are added to the reaction mixture in the first step in a molar ratio of at least 2:1.12. The method of claim 2 , wherein the reducing agent added in the intermediate step is an alcoholic reducing agent.13. The method of claim 2 , wherein the intermediate step comprises heating the reaction mixture to a temperature of at least 50° C. and allowing the mixture to remain at this temperature for at least 2 hours.1415-. (canceled)16. The method of claim 1 , wherein Y and Z claim 1 , together with the two ...

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 . ...

Novel isocyanide compound and hydrosilylation reaction catalyst

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

Hydrosilylation process using a germylene-based organic catalyst

The invention relates to a method for hydrosilylating an unsaturated compound comprising at least one ketone function, one aldehyde function, one alkene function and/or one alkyne function, with a compound comprising at least one hydrogenosilyl function, using an organic germanium catalyst.

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 ...

Application of lithium 4-methoxyaniline in catalysis of hydroboration reaction of imine and borane

The present invention relates to the application of lithium 4-methoxyaniline in catalysis of the hydroboration reaction of an imine and a borane. A catalyst, a borane and an imine are successively stirred and mixed until uniform, reacted for 1 to 2 hours, and then exposed to air so as to stop the reaction, and the reaction liquid is subjected to decompression to remove a solvent therein, so as to obtain a borate with different substituents. The lithium 4-methoxyaniline disclosed in the present invention can catalyze the hydroboration reaction of an imine and a borane in a high activity manner at room temperature, wherein the amount of the catalyst is merely 4-5 mol % of the molar amount of the imine, and the yield of the reaction can reach 90% or more. The yield of a borate with different substituents can reach 99% with mild reaction conditions under an optimized condition.

PROCESS FOR PREPARATION OF 3-METHACRYLOXYPROPYLDIMETHYLCHLOROSILANE IN CONTINUOUS FLOW REACTOR

A process for the preparation of 3-methacryloxypropyldimethylchlorosilane by reaction of allylmethacrylate with dimethylchlorosilane in the presence of a hydrosilylation catalyst, characterized in that the reaction is carried out in the absence of a peroxide is provided. The process includes providing a first stream containing allylmethacrylate. A a second stream containing dimethylchlorosilane is provided. The streams contact in a continuous flow reactor in the presence of the hydrosilylation catalyst, thereby producing 3-methacryloxypropyldimethylchlorosilane. A product stream is continuously removed from the continuous flow reactor. 1. A process for the preparation of 3-methacryloxypropyldimethylchlorosilane by reaction of allylmethacrylate with dimethylchlorosilane in the presence of a hydrosilylation catalyst , wherein the reaction is carried out in the absence of a peroxide by the process comprising:i) providing a first stream containing allylmethacrylate;ii) providing a second stream containing dimethylchlorosilane;iii) contacting said streams in a continuous flow reactor in the presence of said hydrosilylation catalyst, thereby producing 3-methacryloxypropyldimethylchlorosilane; andiv) continuously removing a product stream from said continuous flow reactor.2. The process as claimed in claim 1 , wherein the surface area/volume ratio of the continuous flow reactor is in the range of from 4:1 to 400:1.3. The process as claimed in claim 1 , wherein the ratio of the cross sectional area of the continuous flow reactor to the path length of the reagents in the reactor is in the range of from 0.01:10 claim 1 ,000 to 100:10 claim 1 ,000.4. The process as claimed in claim 1 , wherein the process is carried out in the absence or substantial absence of solvent.5. The process as claimed in claim 1 , in which wherein in-line analysis of the product stream produced in step (iii) is carried out.6. The process as claimed in claim 5 , in which the in-line analysis is carried ...

COMPOSITION CONTAINING PLATINUM

The invention provides for a composition comprising elemental platinum and/or at least one platinum-containing compound, where said platinum has a positive oxidation state, and one or more organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, wherein at least one of said compounds comprises at least one olefinic unsaturation, characterized in that said composition comprises a proportion of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms of from 50.0 to 99.9 wt % and a proportion of the sum of elemental platinum and platinum-containing compounds of from 0.1 to 50.0 wt % in each case based on the composition, with the proviso that the proportions of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms and of elemental platinum and platinum-containing compounds sum to at least 90 wt % based on the composition and the proviso that the olefinic unsaturation content is at least 0.1 g of iodine/100 g of the organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, corresponding to at least 0.004 meq/g, for a process for preparing said composition and for the use thereof. 1. A composition comprising elemental platinum and/or at least one platinum-containing compound , where said platinum has a positive oxidation state , and one or more organic compounds comprising carbon atoms , hydrogen atoms and at least two oxygen atoms , wherein at least one of said compounds comprises at least one olefinic unsaturation , wherein said composition comprises a proportion of organic compounds comprising carbon atoms , hydrogen atoms and at least two oxygen atoms of from 50.0 to 99.9 wt % and a proportion of the sum of elemental platinum and platinum-containing compounds of from 0.1 to 50.0 wt % in each case based on the composition , with the proviso that the proportions of organic compounds comprising carbon atoms , hydrogen atoms and at least two ...

Hydrosilylation reaction catalyst

A hydrosilylation reaction catalyst prepared from: a prescribed transition metal compound such as iron pivalate, cobalt pivalate, iron acetate, cobalt acetate, or nickel acetate; a ligand comprising t-butylisocyanide or another isocyanide compound; and a borane compound, Grignard reagent, alkoxysilane, or other prescribed promoter makes it possible to promote a hydrosilylation reaction under moderate conditions, and has exceptional handling properties and storage stability.

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

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

METAL COMPLEX AND SUPPORTED METAL COMPLEX HAVING DISILOXANE AS LIGAND, METHOD FOR PRODUCTION THEREFOR, AND SUPPORTED METAL CATALYST PREPARED BY USING THE SAME

A metal complex represented by the following Formula (1): 23.-. (canceled)4. A method for producing the metal complex as defined in claim 1 , comprising reacting a metal complex LMX(wherein M represents palladium or platinum; L represents a ligand selected from carbon monoxide claim 1 , an olefin compound claim 1 , an amine compound claim 1 , a phosphine compound claim 1 , an N-heterocyclic carbene compound claim 1 , a nitrile compound and an isocyanide compound; n represents an integer of 0 to 2 showing the number of the ligand; and X represents halogen or a hydroxyl group) with a disiloxane compound HO—(R)(R)Si—O—(R)(R)Si—OH (each of Rto Rrepresents an organic group) in the presence of an alkaline metal hydride.5. (canceled)7. A catalyst for hydrogenation reaction of olefins claim 6 , comprising the supported metal catalyst as defined in .8. The catalyst for hydrogenation reaction according to claim 7 , wherein a central metal of the catalyst is platinum.9. A catalyst for hydrosilylation reaction of olefins claim 1 , comprising the metal complex compound as defined in .10. (canceled)11. The catalyst for hydrosilylation reaction according to claim 9 , wherein a central metal of the catalyst is platinum.12. The supported metal catalyst according to claim 6 , wherein the inorganic oxide of the supported metal complex is silica or a composite oxide containing silicon. Technical FieldThe present invention relates to a metal complex having a skeletal structure in which a disiloxane group is coordinated as a chelate to a central metal. Further, the present invention relates to a supported metal complex obtained by fixing the metal complex on an inorganic oxide while retaining a skeletal structure thereof, and a method for producing the same.Also, the present invention relates to a method for producing a supported metal catalyst by calcining the supported metal complex.Background ArtA reaction system in which a catalyst containing a metal component as a catalytically ...

NOVEL PICOLINAMIDE-CINCHONA ORGANOCATALYSTS AND DERIVATIVES

The present application describes a novel type of picolinamide-cinchona organocatalyst that allows for the successful transformation of ketimines to chiral amines with very high enantioselectivities and with the highest TOFs reported for any particular organocatalyst to date. These organocatalysts have also been immobilized to a variety of solid supports, including magneto-nanoparticles. 2. The organocatalyst according to claim 1 , wherein the pyridyl ring is fused with another benzene unit.3. The organocatalyst according to any one of the previous claims claim 1 , wherein said organocatalyst is immobilized with a suitable linker to a suitable support.4. The organocatalyst according to the previous claim 3 , wherein the linker is selected from the group comprising an alkyl claim 3 , a polyoxyalkyl or a polyalkylsulfide chain.5. The organocatalyst according to any one of the - claim 3 , wherein the linker is attached to said organocatalyst at C-11.6. The organocatalyst according to the previous claim 3 , wherein the support is selected from the group comprising silica gel claim 3 , mesoporous silica claim 3 , a soluble or insoluble polymer or a magnetic nanoparticle.7. The organocatalyst described in - for use in catalytic asymmetric hydrosilylations of ketimines and derivatives.8. The organocatalyst described in - for use in the transformation of ketimines and derivatives into chiral amines with enantioseletivities up to 90% ee. The present application refers to an organocatalytic ketimine hydrosilylation process to chiral amines.Organocatalysis is a subdivision of catalysis which relies on the use of wholly organic molecules as catalysts. These catalysts are very useful and have already made significant contributions in the production and discovery of new pharmaceuticals, agrochemicals and other high added value compounds (Alemán and Cabrera, 2013, MacMillan, 2008). The discovery of the Hajos-Parrish-Eder-Sauer-Wiechert reaction was the starting point (Eder et al. ...

Hydrosilylation reaction catalyst

A hydrosilylation reaction catalyst prepared from: a catalyst precursor comprising a transition metal compound, excluding platinum, belonging to group 8-10 of the periodic table, e.g., iron acetate, cobalt acetate, nickel acetate, etc.; and a ligand comprising an isocyanide compound such as t-butyl isocyanide. The hydrosilylation reaction catalyst has excellent handling and storage properties. As a result of using this catalyst, a hydrosilylation reaction can be promoted under gentle conditions.

PROCESS FOR THE TRANS-SELECTIVE HYDROBORATION OF INTERNAL ALKYNES

The present invention refers to a process for the trans-selective hydroboration of internal alkynes and the so-obtained products. The inventive process makes use of a borane of the formula XXBH selected from the group of dialkyl boranes or di(alkoxy)boranes which are reacted with the internal alkynes in the presence of a cyclyopentadienyl-coordinated ruthenium catalyst. 2. Process for highly stereoselective trans-hydroboration of internal alkynes according to wherein claim 1 , in formulas (I) and (II):{'sup': 1', '2, 'sub': 1', '20', '5', '8', '6', '20', '5', '20', '1', '6', '1', '6, 'Rand Rare the same or different and are each selected from straight chain or branched chain aliphatic hydrocarbons having 1 to 20 carbon atoms optionally including heteroatoms and/or aromatic hydrocarbons in the chain or aromatic hydrocarbons having 5 to 20 carbon atoms, optionally having one or more substituents selected from C-C-alkyl, C-C-heterocycloalkyl or Cto Caromatic hydrocarbon, Cto Cheteroaromatic hydrocarbon or aryl-(C-C)-alkyl, heteroaryl-(C-C)-alkyl, or heteroatoms, or'}{'sup': 1', '2, 'sub': 1', '20', '5', '8', '6', '20', '5', '20', '1', '6', '1', '6', '1', '20', '6', '20', '5', '20', '1', '6', '1', '6, 'Rand Rtogether form an aliphatic hydrocarbon chain structure having 8 to 20 carbon atoms, optionally including heteroatoms and/or aromatic hydrocarbons in the chain and/or optionally having one or more substituents selected from C-C-alkyl, C-C-heterocycloalkyl or Cto Caromatic hydrocarbon, Cto Cheteroaromatic hydrocarbon or aryl-(C-C)-alkyl, heteroaryl-(C-C)-alkyl, said chain structure optionally being substituted by one or more substituents selected from heterosubstituents, straight chain, branched chain, cyclic aliphatic Cto Chydrocarbons, Cto Caromatic hydrocarbon, Cto Cheteroaromatic hydrocarbon, aryl-(C-C)-alkyl, or heteroaryl-(C-C)-alkyl.'}4. Process for highly stereoselective trans-hydroboration of internal alkynes according to wherein claim 3 , in the formula XXBH ...

CATALYST AND RELATED METHODS INVOLVING HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION

A catalyst having a specific structure and a method of preparing the catalyst is disclosed. A composition is also disclosed, which comprises: (A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two provisos: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or (2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule. The composition further comprises (C) the catalyst. A method of preparing a hydrosilylation reaction product and a dehydrogenative silylation reaction product are also disclosed. 2. The catalyst of claim 1 , wherein: (i) each R is independently an isopropyl group or a CFgroup; (ii) M′ is Fe or Co; (iii) n is 1; (iv) m is 1; (v) each X is independently Cl or Br; or (vi) any combination of (i) to (v).3. A catalyst mixture comprising the catalyst of and an activating compound.4. A catalytic reaction product formed from the catalyst mixture of .5. A method of preparing a catalytic reaction product claim 1 , said method comprising reductively activating the catalyst of with an activating compound to prepare the catalytic reaction product.6. The method of wherein the activating compound is i) a borohydride compound; (ii) an aluminum hydride compound; (iii) an organolithium compound; (iv) an organomagnesium compound; or (v) any combination of (i) to (iv).8. The method of further comprising preparing the ligand.9. A composition claim 7 , comprising: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or', '(2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule; and, '(A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two ...

PROCESS FOR THE RUTHENIUM CATALYZED TRANS-SELECTIVE HYDROSTANNATION OF ALKYNES

The present invention refers to a process for the ruthenium-catalyzed trans-selective hydrostannation of alkynes and the so-obtained products. The inventive process makes use of a tin hydride which is reacted with an alkyne in the presence of a cyclopentadienyl-coordinated ruthenium catalyst. 2. Process for highly stereoselective trans-hydrostannation of alkynes according to wherein Rand Rare the same or different and are each selected from straight chain or branched chain aliphatic hydrocarbons having 1 to 20 carbon atoms optionally having heteroatoms and/or aromatic hydrocarbons in the chain or aromatic hydrocarbons having 5 to 20 carbon atoms claim 1 , optionally having one or more substituents selected from C-C-alkyl claim 1 , C-C-heterocycloalkyl or Cto Caromatic hydrocarbon claim 1 , Cto Cheteroaromatic hydrocarbon or aryl-(C-C)-alkyl claim 1 , heteroaryl-(C-C)-alkyl claim 1 , or heteroatoms claim 1 , or{'sup': 1', '2, 'sub': 1', '20', '5', '8', '6', '20', '5', '20', '1', '6', '1', '6', '1', '20', '6', '20', '5', '20', '1', '6', '1', '6, 'Rand Rtogether form an aliphatic hydrocarbon chain structure having 8 to 20 carbon atoms, optionally having heteroatoms and/or aromatic hydrocarbons in the chain and/or optionally having one or more substituents selected from C-C-alkyl, C-C-heterocycloalkyl or Cto Caromatic hydrocarbon, Cto Cheteroaromatic hydrocarbon or aryl-(C-C)-alkyl, heteroaryl-(C-C)-alkyl, said chain structure optionally being substituted by one or more substituents selected from heterosubstituents, straight chain, branched chain, cyclic aliphatic Cto Chydrocarbons, Cto Caromatic hydrocarbon, Cto Cheteroaromatic hydrocarbon, aryl-(C-C)-alkyl, or heteroaryl-(C-C)-alkyl, or'}{'sup': 1', '2, 'sub': 1', '20', '5', '8', '6', '20', '5', '20', '1', '6', '1', '6, 'one of Rand Ris selected from hydrogen, halogen, —SiR*R**R***, wherein R*, R**, R*** are the same or different and are each selected from straight chain or branched chain aliphatic hydrocarbons having ...

MONONUCLEAR IRON COMPLEX AND ORGANIC SYNTHESIS REACTION USING SAME

A mononuclear iron bivalent complex having iron-silicon bonds, which is represented by formula (1), can exhibit an excellent catalytic activity in at least one reaction selected from three reactions, i.e., a hydrosilylation reaction, a hydrogenation reaction and a reaction for reducing a carbonyl compound. 2. The mononuclear iron bivalent complex of wherein Lis isonitrile claim 1 , with the proviso that when a plurality of L's are present claim 1 , two L's may bond together.3. The mononuclear iron bivalent complex of wherein Lis triorganohydrosilane claim 1 , with the proviso that when a plurality of L's are present claim 1 , two L's may bond together.4. The mononuclear iron bivalent complex of wherein mand meach are 2.5. The mononuclear iron bivalent complex of wherein Rto Rare each independently an alkyl claim 4 , aryl or aralkyl group which may be substituted with X which is as defined above claim 4 ,{'sup': 2', '7', '8', '9', '10', '11', '12', '7', '12, 'Lis a triorganohydrosilane represented by H—SiRRRor H—SiRRRwherein Rto Rare each independently an alkyl, aryl or aralkyl group which may be substituted with X which is as defined above,'}{'sup': 1', '3', '4', '6', '7', '9', '10', '12', '4', '6', '7', '9, 'at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto R, or at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking substituent, or'}{'sup': 1', '3', '4', '6', '7', '9', '10', '12', '4', '6', '7', '9, 'at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking substituent, and at least one pair of any one of Rto Rand any one of Rto Ror any one of Rto Rmay bond together to form a crosslinking substituent.'}6. The mononuclear iron bivalent complex of wherein any one of Rto Rand any one of Rto Rbond together to form a crosslinking substituent.7. The mononuclear iron bivalent complex of wherein any one of Rto Rand any one of ...

Activation of metal salts with silylhydrides and their use in hydrosilylation reactions

The invention relates generally to transition metal salts, more specifically to iron, nickel, cobalt, manganese and ruthenium salts, activated with silylhydrides, and their use as efficient hydrosilylation catalysts.

HYDROSILYLATION REACTION CATALYST

A hydrosilylation reaction catalyst prepared from: a catalyst precursor comprising a transition metal compound, excluding platinum, belonging to group 8-10 of the periodic table, e.g., iron acetate, cobalt acetate, nickel acetate, etc.; and a ligand comprising a carbine compound such as 1,3-dimesitylimidazol-2-ylidene, etc. The hydrosilylation reaction catalyst has excellent handling and storage properties. As a result of using this catalyst, a hydrosilylation reaction can be promoted under gentle conditions. 2. The hydrosilylation reaction catalyst of wherein in formula (7) claim 1 , s is 0.3. The hydrosilylation reaction catalyst of or wherein a is 1 or 2 claim 1 , b is 2 to 4 claim 1 , and c is 0 to 1 claim 1 , b+c=2 when a is 1 claim 1 , and b+c=4 or 5 when a is 2.4. The hydrosilylation reaction catalyst of which is prepared in a system where hydrosilylation reaction of a compound having an aliphatic unsaturated bond with a hydrosilane compound having a Si—H group or organohydropolysiloxane compound is carried out.6. The hydrosilylation reaction catalyst of wherein M is Fe claim 1 , Co or Ni claim 1 , a is 1 claim 1 , b is 2 claim 1 , and c is 0.7. The hydrosilylation reaction catalyst of wherein M is Rh claim 1 , a is 2 claim 1 , b is 4 claim 1 , and c is 0.8. The hydrosilylation reaction catalyst of wherein M is Ru claim 1 , a is 2 claim 1 , b is 4 claim 1 , and c is 1.9. The hydrosilylation reaction catalyst of wherein L is a monovalent organic group having formula (4).10. A method for preparing an addition compound comprising the step of carrying out hydrosilylation reaction of a compound having an aliphatic unsaturated bond with a hydrosilane compound having a Si—H group or organohydropolysiloxane compound in the presence of the hydrosilylation reaction catalyst of .11. The method for preparing an addition compound of wherein the compound having an aliphatic unsaturated bond is an organopolysiloxane having an alkenyl group. This invention relates to a ...

HYDROSILYLATION IRON CATALYST

A hydrosilylation iron catalyst prepared from a two-electron ligand (L) and a mononuclear, binuclear, or trinuclear complex of iron indicated by formula (1), Fe having bonds with carbon atoms included in X and the total number of Fe-carbon bonds being 2-10. As a result of using iron, the hydrosilylation iron catalyst is advantageous from a cost perspective as well as being easily synthesized. Hydrosilylation reactions can be promoted under mild conditions by using this catalyst. 1. A hydrosilylation iron catalyst which is prepared from a two-electron ligand (L) and a mono- , bi- or tri-nuclear complex of iron having the formula (1):{'br': None, 'sub': 'a', 'Fe(X)\u2003\u2003(1)'}{'sub': 2', '30, 'wherein X is each independently a C-Cligand which may contain an unsaturated group, exclusive of carbonyl (CO) and cyclopentadienyl groups, at least one X contains an unsaturated group, and a is an integer of 2 to 4 per Fe atom, Fe having bonds with carbon atoms in X, and the total number of Fe-carbon bonds being 2 to 10.'}2. The hydrosilylation iron catalyst of wherein Fe bonds solely with carbon atoms in X.3. The hydrosilylation iron catalyst of or wherein each X is a C-Cligand containing an unsaturated group.4. The hydrosilylation iron catalyst of wherein X is an aryl group claim 1 , and the total number of Fe-carbon bonds is 2.5. The hydrosilylation iron catalyst of which is a mononuclear complex wherein the total number of Fe-carbon bonds is 6 to 10.6. The hydrosilylation iron catalyst of wherein the total number of Fe-carbon bonds is 10.7. The hydrosilylation iron catalyst of or wherein X is at least one ligand selected from a cyclic olefin claim 5 , acyclic olefin claim 5 , cyclic olefinyl and acyclic olefinyl group having 1 to 5 unsaturated groups in the molecule.8. The hydrosilylation iron catalyst of wherein L is at least one two-electron ligand selected from the group consisting of carbonyl claim 1 , molecular hydrogen claim 1 , amine claim 1 , imine claim 1 , ...

NI(0) CATALYSTS

Provided herein are nickel(O) catalysts that are stable when exposed to air and can be used to catalyze the formation of a C—C, C—O, or C—N bond. 2. The catalyst of claim 1 , wherein the dashed line represents a double bond.3. The catalyst of or claim 1 , wherein each Ris the same.4. The catalyst of any one of to claim 1 , wherein Ris selected from the group consisting of methyl claim 1 , ethyl claim 1 , propyl claim 1 , isopropyl claim 1 , butyl claim 1 , sec-butyl claim 1 , isobutyl claim 1 , t-butyl claim 1 , pentyl claim 1 , 3-pentyl claim 1 , and diphenylmethyl.5. The catalyst of any one of to claim 1 , wherein Ris H.6. The catalyst of any one of to claim 1 , wherein each Ris the same.7. The catalyst of any one of to claim 1 , wherein each Ris selected from H claim 1 , chloro claim 1 , and methyl.8. The catalyst of any one of to claim 1 , wherein both Rtogether with the carbons to which they are attached form a 6-membered ring.9. The catalyst of any one of to claim 1 , wherein Ris aryl.10. The catalyst of claim 9 , wherein Ris phenyl.11. The catalyst of any one of to claim 9 , wherein Ris Calkyl.12. The catalyst of claim 11 , wherein Ris methyl or ethyl.13. The catalyst of any one of to claim 11 , wherein Ris H.14. The catalyst of any one of to claim 11 , wherein Ris Calkylene-aryl.15. The catalyst of claim 14 , wherein Ris Calkylene-aryl.16. The catalyst of or claim 14 , wherein the aryl of Rcomprises phenyl or naphthyl.17. The catalyst of claim 16 , wherein Ris toluyl claim 16 , methoxyphenyl claim 16 , tri(alkyl)phenyl (e.g. claim 16 , trimethylphenyl or triisopropylphenyl) claim 16 , MeCO-phenyl claim 16 , or phenyl.18. The catalyst of any one of to claim 16 , wherein Ris Calkylene-Calkene.19. The catalyst of claim 18 , wherein Ris Calkylene-Calkene.20. The catalyst of claim 18 , wherein Ris Calkylene-Calkene.21. The catalyst of any one of to claim 18 , wherein the Calkene is Calkene.22. The catalyst of any one of to claim 18 , wherein Ris Calkyl.23. The ...

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 . ...

Method for preparing silane derivatives from furan derivatives in presence of borane catalyst

The present invention relates to a method for preparing various silane derivatives by subjecting various furan derivatives to hydrosilylation in the presence of a borane catalyst. The method for preparing silane derivatives according to the present invention is a very efficient method for converting, into high value-added silane derivatives, various furan derivatives derived from biomass.

HYDROBORATION AND BORYLATION WITH COBALT CATALYSTS

In one aspect, cobalt complexes are described herein. In some embodiments, such cobalt complexes are operable as catalysts for hydroboration and borylation applications. 2. The method of claim 1 , wherein L is heteroalkyl.4. The method of claim 3 , wherein the heteroalkyl is —CH—Si(CH).5. The method of claim 1 , wherein the unsaturated functional group is a carbon-carbon double bond.6. The method of claim 5 , wherein the unsaturated compound comprises a plurality of carbon-carbon double bonds.7. The method of claim 1 , wherein the unsaturated functional group is a carbon-nitrogen double bond.8. The method claim 1 , wherein the hydroborating reagent is a boronic acid derivative.9. The method of claim 8 , wherein the boronic acid derivative is selected from the group consisting of 4 claim 8 ,4 claim 8 ,5 claim 8 ,5-tetramethyl-1 claim 8 ,3 claim 8 ,2-dioxaborolane claim 8 , 4 claim 8 ,6 claim 8 ,6-trimethyl-1 claim 8 ,3 claim 8 ,2-dioxaborinane and catecholborane.10. The method of claim 1 , wherein the hydroborating reagent is a mono-substituted borane or di-substituted borane.11. The method of claim 4 , wherein R-Rare hydrogen.13. The method of claim 12 , wherein the cobalt halide is cobalt chloride.15. The method of claim 12 , wherein the reaction mixture comprises an aromatic compound having a five-membered aromatic ring or a six-membered aromatic ring.16. The method of claim 12 , wherein the borylation reagent is a boronic acid derivative.17. The method of claim 12 , wherein the borylation reagent is a diboron compound.18. The method of claim 12 , wherein the borylation reagent is selected from the group consisting of bis(pinacolato)diboron claim 12 , bis(hexylene glycolato)diboron claim 12 , bis(catecholato)diboron and bis(neopentyl glycolato)diboron.19. The method of claim 14 , wherein Xand Xand are chloro and R-Rare hydrogen.20. The method of claim 12 , wherein the aliphatic compound or aromatic compound are present in the reaction mixture during reaction of ...

MULTIDENTATE LIGANDS AND USE THEREOF

The present invention provides, inter alia, a multidentate ligand having the structure of: 2. The multidentate ligand of claim 1 , wherein Z comprises a silicon-containing group.3. The multidentate ligand of claim 1 , wherein Z is Si(R); and wherein Ris selected from the group consisting of H claim 1 , halide claim 1 , alkyl claim 1 , aryl claim 1 , aralkyl claim 1 , heteroalkyl claim 1 , heteroaryl claim 1 , alkoxy claim 1 , hydroxy claim 1 , heteroalkoxy claim 1 , amino claim 1 , alkylamino claim 1 , arylamino claim 1 , cyano or a heterocyclic group.5. A method of preparing a metal complex claim 1 , comprising coordinating the ligand according to to a metal center via a combination of up to three nitrogen donors and the carbon atom.6. The method of claim 5 , wherein the metal center comprises an atom selected from the main group metals claim 5 , transition metals claim 5 , or lanthanoids.7. The method of claim 5 , wherein the metal center comprises an atom selected from Li claim 5 , Mg claim 5 , Ca claim 5 , Fe claim 5 , Ni claim 5 , Cu claim 5 , Zn claim 5 , Zr and Cd.12. A catalyst comprising at least one metal complex according to any one of -.13. A method of catalyzing hydrosilylation of styrenes claim 12 , comprising providing the catalyst of to a hydrosilylation reaction of a styrene.14. A method of catalyzing hydroboration of styrenes claim 12 , comprising providing the catalyst of to a hydroboration reaction of a styrene.15. A method of catalyzing hydrosilylation of carbon dioxide claim 12 , comprising providing the catalyst of to a hydrosilylation reaction of carbon dioxide.16. A method of preparing a formaldehyde equivalent from carbon dioxide comprising contacting a reaction mixture comprising carbon dioxide and a silane with a compound prepared from the multidentate ligand of claim 1 , wherein the silane is RSiH and R is selected from H claim 1 , alkyl and aryl.18. The method of claim 1 , wherein the compound comprises at least one metal complex ...

METHOD OF HYDROSILYLATION IMPLEMENTING AN ORGANIC CATALYST DERIVED FROM GERMYLENE

The present invention concerns a method for the hydrosilylation of an unsaturated compound comprising at least one ketone function, one aldehyde function, one alkene function and/or one alkyne function, with a compound comprising at least one hydrogen-silyl function implementing an organic catalyst of tri-coordinated germanium. 2. The process as claimed in claim 1 , wherein the unsaturated compound (A) comprises one or more alkene or alkyne functions and claim 1 , optionally claim 1 , from 2 to 40 carbon atoms.3. The process as claimed in claim 1 , wherein compound (B) comprises at least one hydrogenosilyl function chosen from:a silane or polysilane compound comprising at least one hydrogen atom bonded to a silicon atom,an organopolysiloxane compound comprising at least one hydrogen atom bonded to a silicon atom, optionally an organopolysiloxane compound comprising, per molecule, at least two hydrogenosilyl functions, andan organic polymer comprising hydrogenosilyl functions in end positions.4. The process as claimed in claim 1 , wherein: {'br': None, 'sub': g', 'h', '(4−(g+h))/2, 'AUSiO\u2003\u2003(I)'}, 'the unsaturated compound (A) is chosen from organopolysiloxane compounds comprising units of formula (I) the radicals A, which may be identical or different, represent a linear or branched alkenyl or alkynyl radical containing between 2 and 6 carbon atoms;', 'the radicals U, which may be identical or different, represent a monovalent radical other than a hydrogen atom,', 'g and h represent integers, g being 1 or 2, h being 0, 1 or 2 and (g+h) being 1, 2 or 3;, 'in which {'br': None, 'sub': d', 'e', '(4−(d−e))/2, 'HUSiO\u2003\u2003(III)'}, 'compound (B) comprising at least one hydrogenosilyl function is an organopolysiloxane comprising at least one unit of formula (III) U has the same meaning as above,', 'd and e represent integers, d being 1 or 2, e being 0, 1 or 2 and (d+e) being 1, 2 or 3., 'in which7. The compound as claimed in claim 5 , wherein L is an alkoxy ...

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

The invention describes phospho-amino pincer-type ligands, metal complexes thereof, and catalytic methods comprising such metal complexes for conversion of carbon dioxide to methanol, conversion of aldehydes into alcohols, conversion of aldehydes in the presence of a trifluoromethylation agent into trifluorinated secondary alcohols, cycloaddition of carbon dioxide to an epoxide to provide cyclic carbonates or preparation of an amide from the combination of an alcohol and an amine. 2. The composition of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare each a alkyl claim 1 , each Z is CH claim 1 , T is N or NR claim 1 , and Ris a hydrogen atom.3. The composition of claim 2 , wherein R claim 2 , R claim 2 , R claim 2 , and Rare each a Calkyl and T is NR.4. The composition of claim 3 , wherein Ris a methyl group or a hydrogen.5. The composition of claim 1 , wherein X is a hydride.6. The composition of claim 1 , wherein X is a halide.7. The composition of claim 6 , wherein the halide is selected from chloride claim 6 , bromide claim 6 , iodide claim 6 , and fluoride. This International Application claims priority to U.S. Provisional Patent Application Ser. No. 62/049,022, filed Sep. 11, 2014, entitled “Novel Imines with tunable nucleophilicity and steric properties through metal coordination: Applications as ligands and Metalloorganocatalysts”, the contents of which are incorporated herein in their entirety for all purposes.The present invention relates generally to the field of chemistry and catalysis. More particularly, it relates to phospho-amino pincer-type ligands, metal complexes thereof, and catalytic methods comprising such metal complexes.Applications of molecular organometallic/coordination complexes as catalysts in organic transformations have been studied, and these reactions typically proceed at the metal atom as the catalytic center whose activity and selectivity are manipulated by modifying the steric and/or electronic properties of the ...

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. 3. The process of claim 2 , wherein Rand Rare independently chosen from methyl and ethyl.4. The process of claim 2 , wherein Rand Rare independently chosen from methyl and phenyl.5. The process of claim 2 , wherein R claim 2 , R claim 2 , and Rare hydrogen.6. The process of claim 2 , wherein at least one of R claim 2 , R claim 2 , and Rcomprises a pyrrolidinyl group.8. The process of claim 2 , wherein the catalyst is of the Formula (III) claim 2 , and the resulting products are essentially free of any dehydrogenative silylated product.9. The process of claim 2 , wherein the resulting product comprises a mixture of hydrosilylated product and dehydrogenative silylated product.10. The process of claim 2 , wherein the silyl/siloxy hydride is chosen from one or a combination of compounds of the formulas:{'sup': '10', 'sub': m', 'p', '4−(m+p), 'RSiHX; and'}{'sub': a', 'b', 'c', 'd', 'e', 'f', 'g, 'sup': H', 'H', 'H, 'MMDDTTQ,'}{'sup': 10', '11', '12', '13', 'H', '14', 'H', 'H', '15', '10-15', '10-15, 'sub': 3', '1/2', '2/2', '3/2', '4/2', '2', '1/2', '3/2', '2/2', '1', '18', '1', '6', '14, 'where each Ris independently a substituted or unsubstituted aliphatic or aromatic hydrocarbyl group; X is halogen, alkoxy, acyloxy, or silazane; m is 1-3; p is 1-3; M represents a monofunctional group of formula RSiO; a D represents a difunctional group of formula RSiO; a T represents a trifunctional group of formula RSiO; Q represents a tetrafunctional group of formula SiO; Mrepresents HRSiO, Trepresents HSiO, and Dgroup represents RHSiO; each occurrence of Ris independently a C-Calkyl, a C-C18 substituted alkyl, a C-Caryl or substituted aryl, wherein Roptionally and independently contains at least one heteroatom; subscripts a, b, c, d, e, f, and g are such that the molar mass of the compound is ...

FIRST ROW METAL-BASED CATALYSTS FOR HYDOSILYLATION

In various embodiments, the invention provides phosphine ligand supported first row metal catalysts with surprising and efficacious catalytic activity for hydrosilylation of pi-bonded substrates. Also provided are methods of using the catalysts of the invention to prepare hydrosilylated compounds. 3. The compound according to claim 1 , wherein Ris a member selected from substituted or unsubstituted alkyl claim 1 , amine claim 1 , substituted or unsubstituted aryloxy and substituted or unsubstituted heteroaryloxy.6. The compound according to claim 1 , having the formula:{'br': None, 'sub': s-t', 't, 'sup': t+', '−', 't−, '[I-M(X)][Y]'}in whichI is said ligand, which has a structure according to Formula I;M is said first row metal atom;X is a ligand for said metal atom;{'sup': '−', 'Y is an anion; and'}s and t are integers independently selected from 0, 1, 2, 3 and 4 and are selected such that s-t is 0, 1, 2 or 3.8. The compound according to claim 1 , wherein said compound catalyzes the addition of a hydrosilane across a pi-bonded system.9. The compound according to claim 1 , wherein said compound catalyzes the addition of a hydrosilane across a pi-bonded system which is a member selected from a double bond of an alkene and a triple bond of an alkyne.10. The compound according to claim 1 , wherein said first row metal atom is a member selected from a nickel atom claim 1 , a copper atom claim 1 , an iron atom and a cobalt atom.13. A method of hydrosilylating a pi-bonded system claim 1 , said method comprising: contacting said pi-bonded system with a compound according to claim 1 , which is a catalyst for said hydrosilylating said system and a hydrosilane under conditions appropriate for said hydrosilylating.14. A method of hydrosilylating a pi-bonded system claim 1 , wherein said pi-bonded system is a member selected from an alkene claim 1 , an alkyne claim 1 , and a carbonyl claim 1 , said method comprising: contacting said pi-bonded system with a compound according ...

COBALT COMPOUND USEFUL AS CATALYST FOR HYDROSILYLATION, DEHYDROGENATIVE SILYLATION AND CROSSLINKING OF SILICONE COMPOSITIONS

The subject of the present invention is the use, as hydrosilylation and/or dehydrogenative silylation catalyst, of a cobalt compound of formula (1): [CO(N(SiR))]in which: —the R symbols, which are identical or different, represent a hydrogen atom or a hydrocarbon-based radical having from 1 to 12 carbon atoms, and preferably the R symbols, which are identical or different, are chosen from the group consisting of: a hydrogen atom, alkyl groups having from 1 to 8 carbon atoms and aryl groups having from 6 to 12 carbon atoms, —x=1, 2 or 3 and—y=1 or 2.

Stabilization of active metal catalysts at metal-organic framework nodes for highly efficient organic transformations

Metal-organic framework (MOFs) compositions based on post¬synthetic metalation of secondary building unit (SBU) terminal or bridging OH or OH 2 groups with metal precursors or other post-synthetic manipulations are described. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations, including the regioselective boryiation and siiylation of benzyiic C—H bonds, the hydrogenation of aikenes, imines, carbonyls, nitroarenes, and heterocycles, hydroboration, hydrophosphination, and cyclization reactions. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor.

BETA-DIKETIMINATE MANGANESE CATALYSTS FOR HYDROSILYLATION, HYDROBORATION, AND DEHYDROGENATIVE PNICTOGEN-SILICON AND PNICTOGEN-BORON BOND FORMATION

The synthesis and structure of beta-diketiminate manganese compounds are described, as well as their use as catalysts for the hydrosilylation and hydroboration of unsaturated organic compounds and main group element-main group element bond formation via dehydrogenative coupling. 2. A method of facilitating a hydrosilylation reaction claim 1 , the method comprising reacting a compound having an Si—H bond with an unsaturated organic compound having a carbon-carbon double bond in the presence of one or more of the manganese complexes of .3. The method of claim 2 , wherein the Si and H atoms in the Si—H bond are added across the carbon-carbon double bond of the unsaturated organic compound to yield an organosilicon compound or silicone.4. A method of facilitating a hydroboration reaction claim 1 , the method comprising reacting a compound having a B—H bond with an unsaturated organic compound having a carbon-carbon double bond in the presence of one or more of the manganese complexes of .5. The method of claim 4 , wherein the B and H atoms in the B—H bond are added across the carbon-carbon double bond of the unsaturated organic compound.6. A method of facilitating a dehydrogenative amine silylation reaction claim 1 , the method comprising reacting a first compound having one or more Si—H bonds with a second compound having one or more N—H bonds in the presence of one or more of the manganese complexes of .7. The method of claim 6 , wherein His formed from hydrogen in at least one of the one or more Si—H bonds of the first compound and hydrogen in at least one of the one or more the N—H bonds of the second compound to yield a product having one or more Si—N bonds.8. The method of claim 6 , wherein the first compound comprises SiHand the second compound comprises NH claim 6 , and His formed from one or more hydrogens in the SiHand one or more hydrogens in the NHto yield a polysilazane polymer having one or more Si—N bonds.9. The method of claim 8 , wherein the ...

COMPOSITION CONTAINING PLATINUM

The invention provides for a composition comprising elemental platinum and/or at least one platinum-containing compound, where said platinum has a positive oxidation state, and one or more organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, wherein at least one of said compounds comprises at least one olefinic unsaturation, characterized in that said composition comprises a proportion of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms of from 50.0 to 99.9 wt % and a proportion of the sum of elemental platinum and platinum-containing compounds of from 0.1 to 50.0 wt % in each case based on the composition, with the proviso that the proportions of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms and of elemental platinum and platinum-containing compounds sum to at least 90 wt % based on the composition and the proviso that the olefinic unsaturation content is at least 0.1 g of iodine/100 g of the organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, corresponding to at least 0.004 meq/g, for a process for preparing said composition and for the use thereof. 122-. (canceled)23. A composition comprising elemental platinum or platinum(II)-containing compound , wherein said platinum(II) has a positive oxidation state , and an organic compound comprising a compound having formula I{'br': None, 'sub': 2', 'm', '2', '2', 'n', '2', '3', 'o', 'a, 'A[-O—(CH—CHR′—O—)—(CH—CH—O—)—(CH—CH(CH)—O)—Z]\u2003\u2003(I)'}whereinA is either hydrogen or an at least one carbon atom-comprising saturated or unsaturated organic radical,R′ is independently for each occurrence a saturated 2-18 carbon atom-comprising alkyl group or an aromatic radical,Z is either hydrogen, a linear or branched, saturated or unsaturated 1-18 carbon atom-comprising hydrocarbon radical, or{'sub': E', 'E, 'the radical of an organic acid of formula —C(═O)—Z, where Zis an ...

Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.

Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.

Curable silicone compositions

Die vorliegende Erfindung betrifft thermisch durch Hydrosilysierung vernetzbare Siliconzusammensetzungen, Verfahren zu deren Herstellung, hierzu eingesetzte Platinkatalysatoren sowie die Verwendung der vernetzbaren Zusammensetzungen. The present invention relates to thermally hydrosilylation crosslinkable silicone compositions, processes for their preparation, platinum catalysts used for this purpose and the use of crosslinkable compositions.

Catalysts for hydrogenation and hydrosilylation, methods of making and using the same

A compound is provided including an organometallic complex represented by the formula I: [C p M(CO) 2 (NHC)L k ] + A −   I wherein M is an atom of molybdenum or tangsten, Cp is substituted or unsubstituted cyclopentadienyl radical represented by the formula [C 5 Q 1 Q 2 Q 3 Q 4 Q 5 ], wherein Q 1 to Q 5 are independently selected from the group consisting of H radical, C 1-20 hydrocarbyl radical, substituted hydrocarbyl radical, halogen radical, halogen-substituted hydrocarbyl radical, —OR, —C(O)R′, —CO 2 R′, —SiR′ 3 and —NR′R″, wherein R′ and R″ are independently selected from the group consisting of H radical, C 1-20 hydrocarbyl radical, halogen radical, and halogen-substituted hydrocarbyl radical, wherein said Q 1 to Q 5 radicals are optionally linked to each other to form a stable bridging group, NHC is any N-heterocyclic carbene ligand, L is either any neutral electron donor ligand, wherein k is a number from 0 to 1 or L is an anionic ligand wherein k is 2, and A − is an anion. Processes using the organometallic complex as catalyst for hydrogenation of aldehydes and ketones are provided. Processes using the organometallic complex as catalyst for the hydrosilylation of aldehydes, ketones and esters are also provided.

Catalyst and solvent composition and catalyst processes using this composition.

Recyclable catalysts methods of making and using the same

Organometallic complexes are provided, which include a catalyst containing a transition metal, a ligand and a component having the formula GAr F . Ar F is an aromatic ring system selected from phenyl, naphthalenyl, anthracenyl, fluorenyl, or indenyl. The aromatic ring system has at least a substituent selected from fluorine, hydrogen, hydrocarbyl or fluorinated hydrocarbyl, G is substituted or unsubstituted (CH 2 ) n or (CF 2 ) n , wherein n is from 1 to 30, wherein further one or more CH 2 or CF 2 groups are optionally replaced by NR, PR, SiR 2 , BR, O or S, or R is hydrocarbyl or substituted hydrocarbyl, GAr F being covalently bonded to either said transition metal or said ligand of said catalyst, thereby rendering said cationic organometallic complex liquid. The catalyst of the organometallic complex can be [CpM(CO) 2 (NHC)L k ] + A − , wherein M is an atom of molybdenum or tungsten, Cp is substituted or unsubstituted cyclopentadienyl radical represented by the formula [C 5 Q 1 Q 2 Q 3 Q 4 Q 5 ], wherein Q 1 to Q 5 are independently selected from the group consisting of H radical, GAr F C 1-20 hydrocarbyl radical, substituted hydrocarbyl radical, substituted hydrocarbyl radical substituted by GAr F , halogen radical, halogen-substituted hydrocarbyl radical, —OR, —C(O)R′, —CO 2 R′, —SiR′ 3 and —NR′R″, wherein R′ and R″ are independently selected from the group consisting of H radical, C 1-20 hydrocarbyl radical, halogen radical, and halogen-substituted hydrocarbyl radical, wherein said Q 1 to Q 5 radicals are optionally linked to each other to form a stable bridging group, NHC is any N-heterocyclic carbene ligand, L is either any neutral electron donor ligand, wherein k is a number from 0 to 1 or L is an anionic ligand wherein k is 2, and A − is an anion. Processes using the organometallic complexes as catalysts in catalytic reactions, such as for example, the hydrosilylation of aldehydes, ketones and esters are also provided.

含镍硅氢加成催化剂及含有该催化剂的组合物

本发明公开了一种组合物，所述组合物含有(A)硅氢加成反应催化剂和(B)脂族不饱和化合物，所述脂族不饱和化合物平均每分子具有一个或多个能够进行硅氢加成反应的脂族不饱和有机基团。所述组合物能够通过硅氢加成反应来反应而形成反应产物，如硅烷、树胶、凝胶、橡胶或树脂。成分(A)含有金属‑配体络合物，所述金属‑配体络合物可以通过包括使金属前体与配体反应的方法来制备。

Ruthenium containing hydrosilylation catalysts and compositions containing the catalysts

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

Iridium containing hydrosilylation catalysts and compositions containing the catalysts

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

Hydrosilylation reaction catalysts and curable compositions and methods for their preparation and use

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

Transition metal complexes with diaminocarbene ligands and their use in reactions catalyzed by transition metals

The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions.

Hydrosilylation reaction catalyst

Carbene-diene complexes of nickel, palladium and platinum

Verwendung von Carben-Dien-Komplexen von Nickel, Palladium und Platin der allgemeinen Formel I, worin bedeutet M Nickel, Palladium oder Platin, L ein monodentater Carbenligand der Formel II oder III A und C unabhängig voneinander Sauerstoff, Schwefel, eine CH 2 -Gruppe, eine C(R 15 ) a (R 16 ) b -Gruppe, eine N(R 17 ) c -Gruppe oder eine Si(R 18 ) d (R 19 ) e -Gruppe, wobei a, b, c, d, e unabhängig voneinander 0 oder 1 und für den Fall, daß a, b, c, d, e mindestens eines der beteiligten Reste 0 ist, A, B und C auch Teile eines Ringsystems sein können, B Sauerstoff, Schwefel, eine N(R 17 ) c -Gruppe oder eine Si(R 18 ) d (R 19 ) e -Gruppe, wobei c, d und e wie vorstehend definiert sind, x und z 0 oder 1, y = 1 und x + y + z = 1 bis 3, R 1 bis R 19 Wasserstoff, einen Alkyl-, einen Aryl-, einen Alkenylrest, O-Alkyl, O-C(O)-Alkyl, O-(Aryl), O-C(O)-Aryl, F, Cl, OH, NO 2 , Si(Alkyl) 3 , CF 3 , CN, CO 2 H, C(O)H, SO 3 H, NH 2 , NH(Alkyl),... Use of carbene-diene complexes of nickel, palladium and platinum of the general formula I, where is meant M nickel, palladium or platinum, L is a monodentate carbene ligand of formula II or III A and C are independently oxygen, sulfur, CH 2 , C (R 15 ) a (R 16 ) b , N (R 17 ) c or Si (R 18 ) d (R 19 ) e - group, where a, b, c, d, e are independently 0 or 1 and in the event that a, b, c, d, e at least one of the radicals 0, A, B and C are also parts of a ring system, B is oxygen, sulfur, an N (R 17 ) c group or a Si (R 18 ) d (R 19 ) e group, where c, d and e are as defined above, x and z are 0 or 1, y = 1 and x + y + z = 1 to 3, R 1 to R 19 are hydrogen, an alkyl, an aryl, an alkenyl, O-alkyl, OC (O) -alkyl, O- (aryl), OC (O) -aryl, F, Cl, OH, NO 2 , Si (alkyl) 3 , CF 3 , CN, CO 2 H, C (O) H, SO 3 H, NH 2 , NH (alkyl), ...

Catalysis using blends of perfluorinated ion-exchange polymers with perfluorinated diluents

Improved processes for acid-catalyzed oligomerization of olefins and alkylation of toluene are disclosed using a catalyst blend of at least one perfluorinated ion-exchange polymer containing sulfonic acid groups and at least one polymer diluent in a nonpolar reaction mixture.

Curable silicone compositions

A platinum catalyst (1) contains platinum, phosphorus and oxygen. A platinum catalyst of formula: (R 1>) 2Pt(P(OR 2>) 3) 2, contains platinum, phosphorus and oxygen. R 1>halogen, negatively charged inorganic radical, C(R 3>) 3, OR 3>, or Si(R 3>) 3(all optionally substituted by -NH 2, -COOH, -F, -Br, -Cl, aryl or alkyl); R 2>alkyl radical of formula: C nH 2n+1or C mH 2m-1, or arylalkyl of formula: -(C 6H 5-p)- or -(C oH 2o+1) p- (all optionally substituted by -NH 2, -COOH, -F, -Br, -Cl, aryl or alkyl); R 3>H, 1-18C linear or branched aliphatic radical or 6-31C arylalkyl; n : 5-18; m : 5-31; o : 1-31;and p : 1-5.

Catalyst, process for making thereof as well as process for the alkylation of aliphatic hydrocarbons with olefins

Method for preparing halosilane compounds

A halosilane compound: R1CH2CH2SiR52X is prepared by hydrosilylation reaction of a vinyl compound: R1CH═CH2 with a halogenodiorganosilane compound having formula: HSiR52X in the co-presence of an iridium catalyst, an internal olefin compound, and an allyl halide. The halosilane compound is prepared on an industrial scale with the advantages of low costs, high yields, and high selectivity, using a small amount of iridium catalyst.

CATALYST FOR HYDROSILYLATION REACTION, HYDROGENATION REACTION, AND HYDROSILANE REDUCTION REACTION

Provided is a catalyst which comprises a compound represented by formula (1) and which exhibits activity for at least one type of reaction selected from among hydrosilylation reaction or hydrogenation reaction with respect to an aliphatic unsaturated bond and hydrosilane reduction reaction with respect to a carbon-oxygen unsaturated bond or a carbon-nitrogen unsaturated bond. Formula (1): M(L) {M represents Fe, Co, or Ni having an oxidation number of 0, L represents an isocyanide ligand represented by formula (2), n denotes an integer of 1-8, and m denotes an integer of 2-12. Formula (2): (CN)—R(Rrepresents a mono- to trivalent-organic group having 1-30 carbon atoms, optionally being substituted by a halogen atom, and optionally having interposed therein one or more atoms selected from among O, N, S, and Si; and x denotes an integer of 1-3.)}. 1. A catalyst comprising a compound represented by formula (1) below , and having activity in at least one reaction selected from hydrosilylation reaction or hydrogenation reaction on an aliphatic unsaturated bond and hydrosilane reduction reaction on a carbon-oxygen unsaturated bond or a carbon-nitrogen unsaturated bond ,{'br': None, 'sub': n', 'm, 'M(L)\u2003\u2003(1)'} {'br': None, 'sub': 'x', 'sup': '1', '(CN)—R\u2003\u2003(2)'}, 'wherein M represents Fe, Co, or Ni with an oxidation number of 0, L represents an isocyanide ligand represented by formula (2) below, n represents an integer of 1 to 8, and m represents an integer of 2 to 12,'}{'sup': '1', 'wherein Rrepresents a monovalent to trivalent organic group that has 1 to 30 carbon atoms, and x represents an integer of 1 to 3,'}wherein the monovalent organic group that has 1 to 30 carbon atoms is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, s-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n- ...

Olefin hydroboration

A process comprising contacting a) an alkene, b) a hydrogen-boron bond containing compound, c) an α-diimine metal salt complex comprising an α-diimine iron salt complex or an α-diimine cobalt salt complex, and d) a group 1 metal borohydride under conditions suitable to form an alkylboron compound. A process comprising contacting a) an alkene, b) a hydrogen-boron bond containing compound, and c) an α-diimine metal salt complex comprising an α-diimine iron methylenetrihydrocarbylsilyl complex or an α-diimine cobalt methylenetrihydrocarbylsilyl complex, to form an alkyl-boron compound under conditions suitable to form an alkylboron compound. A process comprising contacting an alkene, a hydrogen-boron bond containing compound, and an α-diimine metal salt complex to form an alkyl-boron compound under conditions suitable to form an alkylboron compound.

Processo para hidrocianação e composição de catalisador

Material à base de sílica e processo para sua preparação, processo para a alquilação de um hidrocarboneto alifático e processo para regenerar um catalisador

PHOSPHINE / PALLADIUM COMPLEXES, USEFUL AS CATALYSTS, IN PARTICULAR FOR THE ARYLATION OF OLEFINS

The invention concerns phosphines and their use for preparing palladium complexes, useful as catalysts for arylation and hydroarylation of olefins. The phosphines comprise a phosphorus atom bearing an o-tolyl group optionally substituted, and two secondary or tertiary amine groups. The substituents of the amines are selected among hydrogen, an alkyl radical, an alkenyl radical or an aryl radical, not more than one of the substituents R1 and R2 is a hydrogen atom, and not more than one of the substituents R3 and R4 is a hydrogen atom; or the substituents R1 and R2, and/or the substituents R3 and R4 together form a biradical which constitutes a heterocycle with the nitrogen atom bearing them, or still one of the substituents R1 or R2 forms with the substituents R3 and r4 a trivalent radical which constitutes condensed heterocycles with the -N-P-N- segment.

一种硅基修饰的有机羧酸金属盐催化剂及应用

本发明公开了一种硅基修饰的有机羧酸金属盐催化剂及应用，所述催化剂由具有表面活性的硅氧烷基有机羧酸阴离子与具有Lewis酸性质的过渡金属离子组成。该硅基修饰的有机羧酸金属盐催化剂与聚硅氧烷有较好的相溶性，从而可以代替铂催化剂用于加成型液体硅橡胶的成型，制备均一透明的硅橡胶制品。该硅基修饰的有机羧酸金属盐催化剂还可用于催化烯烃硅氢加成反应，此时的硅氢加成反应产率高、反应条件温和、反应底物普适性好，同时该催化剂易于保存。

ASYMMETRIC SYNTHESIS.

ESTA INVENCION ES RELATIVA A SINTESIS ASIMETRICA EN LA CUAL UN COMPUESTO PROQUIRICO O QUIRICO ESTA CONECTADO EN LA PRESENCIA DE UN COMPLEJO CATALIZADOR LIGANTE CTIVO PARA PRODUCIR UN PRODUCTO OPTICAMENTE ACTIVO. THIS INVENTION IS RELATIVE TO ASYMMETRICAL SYNTHESIS IN WHICH A PROQUIRIC OR CHIRICAL COMPOUND IS CONNECTED IN THE PRESENCE OF A LIGATING CATALYST COMPLEX TO PRODUCE AN OPTICALLY ACTIVE PRODUCT.

Supported lewis acid catalysts for hydrocarbon conversion reactions

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon at least one relatively strong Lewis acid and at least one relatively weak Lewis acid.

Catalyst composition and a process for dimerizing or codimerizing unsaturated hydrocarbons using this composition

1275836 Dimerisation catalysts INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS and SOC NATIONALE DES PETROLES D'AQUITAINE 26 June 1970 [2 July 1969; 25 Nov 1969] 31236/70 Heading B1E [Also in Division C5] Catalyst compositions comprise a fluoride of an element of Groups VA, VB and VIB of the Mendeleaf Periodic Table and (b) an organic nickel compound. Fluorides specified are PF 5 , AsF 5 , SbF 5 , VF 5 , NbF 5 , TaF 5 , MoF 5 and WF 6 and specified Ni-compounds are Ni[P(C 6 H 5 ) 3 ] 4 Ni(CO)[P(cyclohexyl) 3 ] 3 , Ni (CO) 2 [P(C 6 H 5 ) 3 ] 2 Ni(CO) 2 (PBu 3 ) 2 , Ni(CO) 3 [P(C 6 H 5 ) 3 ], Ni(1, 5-cyclo-octadiene)2, Ni(cyclododecatriene), Ni(1, 5-cyclo-octadiene) (dunoquinone), NiCl (naphthyl) [P(C 6 H 5 ) 3 ] 2 , Ni(otolyl) 2 [P(C 6 H 5 ) 3 ] 2 Ni(#-allyl) 2 , NiCl(#-allyl), Ni(#-allyl).O 2 C.CF 3 , and Ni(#-allyl).O 2 C.CHCl 2 .

Palladium catalyzed codimerization process

Solid pi -allyl complex catalysts comprising: A. A palladium source; B. A monotertiary phosphine electron donor ligand; C. A combination of a reducing agent capable of reducing the palladium source to an oxidation state of less than 2 and a Lewis acid capable of forming a coordination bond with palladium; and D. An acidic, solid, silica-based support material, are useful in the codimerization of a conjugated diene and a monoene. Preferably, the catalyst is activated by the additional presence of a conjugated diene. In a preferred embodiment, the solid pi -allyl palladium complex catalyst prepared from palladium acetylacetonate, triphenylphosphine, diethylaluminum chloride and a calcined silica-alumina support having a separate, distinct alumina phase is useful in the selective codimerization of 1,3-butadiene and ethylene to form trans-1,4hexadiene.

Supported lewis acid catalysts for hydrocarbon conversion reactions

Supported lewis acid catalysts for hydrocarbon conversion reactions

Idrocianurazione di olefine

Metal containing hydrosilylation catalysts and compositions containing the catalysts

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

Nickel containing hydrosilylation catalysts and compositions containing the catalysts

Hydrosilylation catalysts

Disclosed herein are metal-terpyridine complexes and their use in hydrosilylation reactions.

Iron containing hydrosilylation catalysts and compositions containing the catalysts

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

Non-precious metal-based hyrdosilylation catalysts exhibiting improved selectivity

Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.

Dehydrogenative silylation and crosslinking using cobalt catalysts

Disclosed herein are cobalt complexes containing terdentate pyridine di-imine ligands and their use as efficient and selective dehydrogenative silylation and crosslinking catalysts.