Patents
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Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
10/2000
10/17/2000US6133184 An oxidation catalyst for synthesis of aromatic anhydride and nitrile consists of a silicon carbide carrier, an inorganic oxide binder selected from oxides of niobium or antimony or tungsten, and a catalyst selected from vanadium or molybdenum
10/17/2000US6133002 Acetalization of dialdehyde with alcohol, diol, or orthoformic ester; amination, cyanation, oxidation; enantioselective hydrolysis
10/12/2000WO2000059871A1 Improved acrylonitrile recovery process
10/12/2000WO2000059870A1 Method for hemihydrogenating dinitriles to form aminonitriles
10/12/2000WO2000059869A1 Gallium promoted molybdenum vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation
10/12/2000WO2000059868A1 Substituted aniline compounds
10/12/2000CA2368703A1 Substituted aniline compounds
10/12/2000CA2368238A1 Method for hemihydrogenating dinitriles to form aminonitriles
10/11/2000EP1043309A1 Process for synthesizing para-and/or meta-substituted cyanophenylalanine derivatives
10/11/2000EP1042068A1 Method for regenerating a hydrogenation catalyst, method for hydrogenating compounds comprising nitrile functions
10/10/2000US6130347 Reacting monochloroacetic ester with hydrogen cyanide in base presence; cyanation
10/09/2000CA2304420A1 Novel process for synthesizing para-and/or meta-substituted cyanophenylalanine derivatives
10/05/2000WO2000058288A1 Pyridine-2,3-dicarboxylic acid diamides
10/05/2000WO2000058274A1 Improved process for the recovery of acrylonitrile and methacrylonitrile
10/05/2000WO2000058273A1 Method of preparing granular n-alkyl-ammonium acetonitrile salts
10/05/2000WO2000058272A1 Process for producing unsaturated nitrile
10/05/2000WO1997020810A8 Process for the preparation of 1-aryl-1-cyanocyclobutane derivatives
10/05/2000DE19913995A1 Verfahren zur Herstellung von körnigen N-Alkylamoniumacetonitril-Salzen A process for the preparation of granular N-Alkylamoniumacetonitril salts
10/05/2000CA2368486A1 Process for the recovery of acrylonitrile and methacrylonitrile
10/05/2000CA2368481A1 Method of preparing granular n-alkyl-ammonium acetonitrile salts
10/05/2000CA2368451A1 Pyridine-2,3-dicarboxylic acid diamides
10/04/2000EP1023279A4 Compounds and method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids
10/04/2000EP0755302B1 Bidentate phosphite and nickel catalyst compositions for hydrocyanation of monoolefins
10/04/2000CN1268939A Method for producing 1-(3-cyclopentenyloxy-4-alkoxyphenyl)-4-oxocyclohexanecarbonitrile
10/04/2000CN1268936A Method for producing compound contg. fluorine, in particular fluorobenzaldhydes and fluorobnzonitriles
10/04/2000CN1268508A Decompression side stream gas-phase productions of finished product acrylonitrile
10/04/2000CN1268399A Fluidized-bed catalyst for preparing isophthalonitrile
10/03/2000US6127567 Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions therefor
09/2000
09/28/2000WO2000056451A1 Catalyst comprising a metal complex of the viii subgroup based on a phosphine amidite ligand and its utilization for hydroformylation and hydrocyanation
09/28/2000DE19913352A1 Katalysator, umfassend einen Komplex eines Metalls der VIII. Nebengruppe auf Basis eines Phospinamiditliganden Catalyst comprising a complex of a metal of VIII. In addition to group based on a Phospinamiditliganden
09/27/2000CN1268115A Process for purifying acrylonitrile
09/27/2000CN1268114A Process for preparing 2-cyanoindan-1-ones
09/27/2000CN1056828C Preparation process for esters of 2,2-dimethyl-3-[(2)-1-propenyl] cyclopropane carboxylic acid and intermediates thereof
09/26/2000US6124504 Reaction of phenols with diazonium salts and subsequent reduction.
09/26/2000US6124233 Highly active and selective catalysts for the production of unsaturated nitriles, methods of making and using the same
09/21/2000WO2000055126A2 N-cyanomethylamides as protease inhibitors
09/21/2000WO2000055125A2 N-cyanomethyl amides as protease inhibitors
09/21/2000WO2000055124A2 Novel compounds and compositions as protease inhibitors
09/21/2000CA2368148A1 Novel compounds and compositions as protease inhibitors
09/21/2000CA2368122A1 Novel compounds and compositions as protease inhibitors
09/21/2000CA2367348A1 Novel compounds and compositions as protease inhibitors
09/20/2000EP0998437A4 Methods for inhibiting the polymerization of vinyl monomers
09/20/2000EP0825978B1 Process for producing alpha,beta-unsaturated nitrile
09/20/2000CN1266845A Process for preparing cyano acetate
09/20/2000CN1056601C Process for production of acrylonitrile
09/19/2000US6121481 Process for preparing 6-aminocapronitrile
09/19/2000US6121480 Method for producing unsymmetrically substituted biphenyls
09/19/2000US6121184 An armoatic diol compound supported on a crosslinked polystyrene and containing a ligand, useful as hydrosilation or hydrogenation or hydrocyanation
09/19/2000US6120700 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
09/13/2000EP0892777B1 Method of producing amines and aminonitriles
09/13/2000CN1266424A Method for producing mixtures of monoolefinic (5-mononitriles by catalytic hydrocyanation in the presence of a catalyst containing at least one metallocene phoshor (III)-nicel-(0) complex
09/13/2000CN1266056A Process for producing hexaminocapronitrile and/or hexamethylenediamine
09/12/2000US6118018 Chlorination and bromination of aromatic compounds at atmospheric pressure
09/06/2000EP1032566A2 Method for the preparation of citalopram
09/06/2000EP1032558A1 Method for hydrogenating dinitriles
09/06/2000EP1032557A1 Method for preparing bromomethyl-biphenyl derivatives
09/06/2000EP0888274B1 Process to prepare a terminal aldehyde and catalyst
09/06/2000EP0852578B1 Method for preparing certain acetonitriles
09/06/2000CN1265644A Method for preparing 3-cyano-2,4-dihalogen-5-flour-benzoic acid
09/06/2000CN1265639A Method for preparing substituted benzyl bromides
09/05/2000USRE36849 Anisotropic compounds and liquid crystal mixtures therewith
09/05/2000US6114589 Process for the preparation of fluorinated aromatic compounds
09/05/2000US6114567 Hydrogenation in the presence of a hydrogenation catalyst
09/05/2000US6114566 4-cyano-3-hydroxybutanoyl hydrazines, derivatives and process for the preparation thereof
09/05/2000US6114565 Process for obtaining nitriles
09/05/2000US6114277 Process for preparing cyano group-containing aromatic methylamines
08/2000
08/31/2000DE19907519A1 Verfahren zur Herstellung von substituierten Olefinen A process for the preparation of substituted olefins
08/30/2000EP1031562A2 Nitrile stabilization
08/30/2000EP1031558A2 Nitrile stabilization
08/30/2000EP1031557A2 Nitrile stabilization
08/30/2000EP1031553A1 Process for the preparation of substituted olefins
08/30/2000EP1031379A1 Catalyst comprising rutheniumcomplex, and use thereof in hydrogenation of unsaturated substrates, especially organic nitriles
08/30/2000CN1265095A Method for prodn. of N-(5-amino-2-cyano-4-fluoro-phenyl)-sulphonamides and new intermediate products
08/30/2000CN1265094A Improved hydrocyanation process
08/30/2000CN1265093A Hydrocyanation of diolefins and isomerization of nonconjugated 2-alykl-3-monoalkenenitriles
08/30/2000CN1265088A Improed process of prepn. of linear aldehydes
08/30/2000CN1264701A Process for preparing propanedinitrile
08/30/2000CN1264696A Low polymer diaryl butadiene compounds
08/30/2000CN1055918C Olefinic nitrile emergency cooling process
08/30/2000CN1055917C Acrylonitrile absorbing tower
08/30/2000CN1055916C fluid bed reactor for ammoxidation of hydrocarbons
08/29/2000US6111128 In the presence of a metal catalyst, reacting an enol ester of given formula or oxime ester with a carbonyl compound and cyanogenation agent to form an alpha-cyanohydrin ester which is hydrolyzed to form alpha-hydroxy acids; efficiency
08/29/2000US6111114 4-bromomethyldiphenyl substituted by 2'-cyano,-carboxy, carbonyloxy or carboxyamide prepared by brominating the corresponding 4-methyl compound using bromine or aqueous hydrobromine solution in the presence of hydrogen peroxide
08/29/2000US6110856 Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles
08/29/2000US6110440 Ammo-oxidation reaction or oxidation in reactors
08/24/2000WO2000002887B1 Ligands for metals and metal-catalyzed processes
08/23/2000EP0842146B1 Oximether and acrylic acid derivatives and their use as fungicides
08/23/2000EP0825975B1 Process for the preparation of substituted aromatic amino compounds
08/23/2000EP0770051B1 Aromatic ether acylation process
08/23/2000CN1264386A Alkene borates and process for covalently coupling organic compounds
08/22/2000US6107510 Catalytically reacting alkyl-substituted aromatic compound or alkyl-substituted heterocyclic compound with mixed gas containing ammonia and oxygen in the presence of catalyst comprising vanadium oxide, chromium oxide, boron oxide,
08/22/2000US6107509 Process for the recovery of acrylonitrile and methacrylontrile
08/22/2000US6107508 Convergent synthesis of α-aryl-β-ketonitriles
08/22/2000CA2298943A1 Preparation of substituted olefins
08/17/2000WO2000047550A1 Bis-styrylbiphenyl compounds
08/16/2000EP1028105A1 Process for the preparation of Cyanoacetic esters
08/16/2000EP1027929A1 Catalyst for the production of acrylonitrile
08/16/2000EP1027316A1 Synthesis of aryl ethers, methods and reagents related thereto
08/16/2000CN1055459C Preparation of hydroxylamine ethers and their salt and intermediates for this purpose
08/15/2000US6103929 Process for the preparation of cyclopropylglycine
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