Patents
Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
04/1997
04/08/1997US5618965 Process for preparing aromatic nitriles
04/03/1997WO1997011934A1 Chiral reductions of imines leading to the syntheses of optically active amines
04/03/1997CA2233450A1 Chiral reductions of imines leading to the syntheses of optically active amines
04/02/1997EP0765684A1 Surface modification and promotion of vanadium antimony oxide catalysts
04/02/1997CN1146762A Monodentate phosphite and nickel catalyst composition for monoolefin hydrocyanation
04/02/1997CN1146452A Method for preparation of amino and hydroxy-phenylformonitrile
04/01/1997US5616773 Carbonylation of 1-cyanobutene with carbon monoxide and alkanol in presence of cobalt catalyst and an urea derivative as activating solvent
04/01/1997US5616772 Method of stabilizing nitriles
03/1997
03/26/1997EP0764624A1 Process for the preparation of fluoroketones
03/26/1997EP0764148A1 Process for preparing biscyanoacrylates
03/26/1997CN1146166A Bidentate phosphite and nickel catalyst compositions for hydrocyanation of monoolefins
03/26/1997CN1145898A Process for producing aliphatic nitrile
03/20/1997DE19638052A1 Selective absorbent for nitrile in hydrocarbon mixts.
03/19/1997EP0763518A1 Stabilization method of vinyl compound with hydroxy group and composition containing such vinyl compound
03/19/1997EP0763011A1 Process for the preparation of unsaturated amino compounds
03/19/1997EP0675874B1 Process for the preparation of (meth)acrylonitrile by ammoxidation
03/18/1997CA1339002C Liquid crystal compound
03/12/1997EP0761647A2 Improved method for preparing hydroxylamines using vinylic compounds without base neutralization and reaction mixture produced thereby
03/12/1997EP0761645A2 Ammoxidation of alkanes and alkenes
03/12/1997EP0761299A2 Method and apparatus for direct oxygen injection with a reactant stream into a fluidized bed reactor
03/12/1997EP0760810A1 Methods for the synthesis of 9-cis retinoids and their novel intermediates
03/12/1997EP0641315B1 Selective low pressure hydrogenation of a dinitrile to an aminonitrile
03/12/1997CA2184797A1 Ammoxidation of alkanes and alkenes
03/06/1997WO1997008137A1 Multi-component liquid azodinitrile mixtures
03/06/1997WO1997008136A1 4-cyano-2,5-difluoraniline preparation process
03/06/1997WO1997008127A1 Hydroformylation process
03/06/1997WO1997008124A1 Hydroformylation process
03/06/1997WO1997008123A1 Hydroformylation process
03/06/1997DE19531895A1 Verfahren zur Herstellung von 4-Cyano-2,5-difluoranilin A process for the preparation of 4-cyano-2,5-difluoroaniline
03/06/1997CA2230509A1 4-cyano-2,5-difluoraniline preparation process
03/06/1997CA2229137A1 Multi-component liquid azodinitrile mixtures
03/05/1997EP0620809B1 $g(a)-SUBSTITUTED BENZENEMETHANAMINE DERIVATIVES
03/01/1997CA2157315A1 Process for the preparation of fluoroketones
02/1997
02/27/1997DE19612828C1 Cyano-naphthyl-substd. phenyl-ethene or -acrylic acid derivs. prodn.
02/26/1997EP0759425A2 Process for the preparation of optically active 1-aryl-alkylamines
02/26/1997EP0711270A4 Cyclopolymerisation monomers and polymers
02/25/1997US5606094 Removing from a solution with acrylonitrile with sodium bisulfite
02/19/1997EP0758643A2 Process for the preparation of ortho-nitro-benzonitriles
02/19/1997EP0758338A1 Bidentate phosphine ligand
02/19/1997CN1143074A Synthetic method for cyano acrylate
02/17/1997CA2183409A1 Process for preparing ortho-nitrobenzonitriles
02/13/1997WO1997005151A1 Catalyst for cross-coupling reactions
02/13/1997WO1997005104A1 Method of carrying out cross-coupling reactions
02/12/1997EP0757980A1 Process for the preparation of 3-aminomethyl-3,5,5-trimethyl cyclohexylamine
02/12/1997EP0757672A1 Monodentate phosphite and nickel catalyst composition for monoolefin hydrocyanation
02/06/1997WO1997003950A1 Oximether and acrylic acid derivatives and their use as fungicides
02/06/1997WO1997003949A1 Process for the preparation and separation of cyclopropanecarbonitrile
02/05/1997CN1142224A Process and catalyst compositions for hydrocyanation of monoolefins
02/04/1997US5599962 For hydrogenating organic nitriles
01/1997
01/30/1997WO1997003040A1 Method for converting polyamides into nitrogen-containing compounds
01/29/1997EP0755302A1 Bidentate phosphite and nickel catalyst compositions for hydrocyanation of monoolefins
01/29/1997CN1141290A Depolymerization of polyamides
01/29/1997CN1141216A Catalyst for propylene ammolidation to acrylonitrile
01/28/1997US5597941 Process for production of 5-amino-3-methylpyrazole
01/23/1997DE19525969A1 Etherderivate Ether derivatives
01/22/1997EP0641314B1 Method for purification of acetonitrile
01/22/1997EP0628026B1 Cyano-oxime ethers, process for producing them, agents containing them and their use
01/22/1997CN1140747A Process for production of petrochemicals
01/21/1997CA2085451C Process for the ammoxidation of saturated hydrocarbons
01/16/1997WO1997001531A1 Process for the production of acrylonitrile dimers
01/16/1997CA2198081A1 Method for producing dimerization product of acrulonitrile
01/15/1997EP0753507A1 Process for the preparation of hydroxycarboxylic acid anilides
01/15/1997EP0753496A2 Process for the catalytic selective hydrogenation of multiple unsaturated organic substances
01/11/1997CA2180812A1 Process for the preparation of hydroxycarboxylic acid anilides
01/08/1997CN1139919A Process for the preparation of arylacetic ester derivatives via palladium-catalyzed cross coupling reaction
01/08/1997CN1139668A Preparation for aromatic nitrile compound
01/08/1997CN1033749C Process for production of anhydrides and nitriles
01/07/1997CA2017133C Process for synthesis of acyl cyanide
01/02/1997EP0750942A2 Particulate catalyst for use in a fluidized bed
01/02/1997EP0563033B1 Process for preparing 3-trifluoromethyl benzyl chloride
12/1996
12/27/1996WO1996041678A1 Vanadium-containing catalyst, process for the production thereof, and use thereof
12/27/1996EP0749956A1 Process for the preparation of 2-hydroxybenzonitrile
12/27/1996EP0749950A1 Process for the production of partial oxidation products
12/27/1996EP0749417A1 Cyano compounds and preparations thereof
12/25/1996CN1138573A Method for synthetizing cyano-propenoic acid ester
12/19/1996WO1996040617A1 Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid
12/17/1996US5585524 Method for the preparation of an aldehyde
12/12/1996WO1996039381A1 Nitrile stabilization
12/12/1996WO1996039376A1 A synthetic method for cyanoacrylate
12/12/1996CA2220490A1 Nitrile stabilization
12/11/1996EP0747349A1 Paraffin ammoxidation using vanadium antimony oxide based catalysts with halide promoters
12/11/1996EP0746539A1 Process for the preparation of cinnamic acid derivatives
12/11/1996CN1137548A Cyanation of double bond systems
12/11/1996CN1137508A Reagent and process which are useful for grafting substituted difluoromethyl group onto compound containing at least one electrophilic function
12/11/1996CN1033508C Method for eliminating nitriding during acrylonitrile production
12/10/1996CA2101523C Inhibiting popcorn polymer formation with alkyl halides
12/05/1996WO1996038409A1 Process for producing 2-cyano-3,3-diary acrylic acid esters
12/05/1996DE19519894A1 Verfahren zur Herstellung von 2-Cyan-3,3-diarylacrylsäureestern A process for the preparation of 2-cyano-3,3-diarylacrylsäureestern
12/05/1996CA2218813A1 Process for producing 2-cyano-3,3-diary acrylic acid esters
12/04/1996EP0745585A1 Process for the preparation of amino and hydroxybenzonitriles
12/04/1996CN1033451C Alpha-substituted benzenemethanamine derivatives
12/04/1996CA2177939A1 Process for the preparation of amino- and hydroxybenzonitriles
11/1996
11/27/1996EP0744392A1 A new one-pot process for the preparation of 7-aryl-2,6-disubstituted quinone methides
11/27/1996EP0569501B1 Inhibiting popcorn polymer formation with esters of inorganic acids
11/27/1996CN1033388C Ammonia oxidization for saturated hydrocarbon
11/27/1996CN1033387C Ammonia oxidation method for saturated hydrocarbons
11/27/1996CA2177327A1 One-pot process for the preparation of 7-aryl-2,6-disubstituted quinone methides
11/21/1996WO1996036594A1 Method for preparing certain acetonitriles
11/21/1996WO1996036593A1 Process for producing aromatic nitriles
11/21/1996WO1996036588A1 Process for the preparation of substituted aromatic amino compounds