Patents
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Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
01/2001
01/09/2001US6171996 Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions therefor
01/09/2001US6171571 Crystalline multinary metal oxide compositions, process for preparing and processes for using the composition
01/04/2001WO2001000608A1 Process for the synthesis of n-(4-cyano-3-trifluoromethylphenyl)-3-(4-fluorophenylsulfonyl)-2-hydroxy-2-methylpropionamide
01/04/2001WO2001000567A1 Compounds from epoxidised nitriles, process for their production and use as cleaning agents
01/04/2001DE10015280A1 Substituted benzonitrile derivative preparation in high yield, for use as herbicide or intermediate, from halo compound and sodium, potassium or zinc cyanide in presence of metal catalyst
01/03/2001EP1065198A1 Process for the production of Malononitrile
01/03/2001EP1064266A2 Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative
01/03/2001EP1064255A1 A process for the manufacture of (2s,2'r,3'r)-2-(2,3-dicarboxylcyclopropyl)-glycine
01/03/2001EP1064093A1 Catalyst comprising a complex of a metal of subgroup viii, on the basis of a phosphonite ligand and method for hydroformylation
01/03/2001CN1060159C Preparation for aromatic nitrile compound
01/02/2001US6169199 Performing distillation in distillation column using average mean residence time for distillation mixture of at least five minutes on at least one level
01/02/2001US6169198 Catalytic hydrocyanation of butadiene in presence of metallocene-phosphorus-nickel complex catalyst
12/2000
12/30/2000CA2312514A1 Process for the production of malononitrile
12/28/2000WO2000078712A1 Substituted arylmalonic acid dinitriles as intermediates for the prepartion of herbicides
12/28/2000CA2368827A1 New intermediates
12/27/2000EP1063232A2 Process for producing erythro-3-amino-2-hydroxybutyric acid derivatives
12/27/2000EP1062200A1 Aminonitrile production
12/27/2000CN1059897C Process for recovering and refining olefinic nitrile
12/26/2000US6166242 Quatenary aminophosphonium compound as fluroination catalyst
12/26/2000US6166241 Process for the simultaneous preparation of acrylonitrile and arcylic acid
12/26/2000US6166226 Synthesis of aryl ethers
12/22/2000CA2312385A1 Process for producing erythro-3-amino-2-hydroxybutyric acid derivatives
12/20/2000EP1060158A1 Method for producing aliphatic alpha-, omega-diamines
12/19/2000US6162942 Method for producing aromatic nitriles
12/19/2000US6162760 Arsenic promoted vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation
12/14/2000WO2000075104A1 Novel method for preparing optically active alpha-aminonitriles
12/14/2000WO2000075099A1 Processes for the preparation of 5-hydroxy-3-oxopentanoic acid derivatives
12/14/2000CA2339357A1 Processes for the preparation of 5-hydroxy-3-oxopentanoic acid derivatives
12/13/2000EP1058677A2 Method for hydrogenating aliphatic alpha-, omega-dinitriles
12/13/2000CN1059434C Process for preparing substd. phenylacetic acid derivs. and intermediates
12/13/2000CN1059358C Method and apparatus for oxygen injection with reactant stream into fluidized bed reactor
12/12/2000US6160158 Fluorinating a carbon compound or cationic carbon compound with nickel fluorine compounds or salts in a reaction vessel to form fluorinated carbon compounds
12/12/2000US6160157 Preparation of 4-cyano-4'-hydroxybiphenyl
12/07/2000WO2000073261A1 Ammoxidation of a mixture of ketones to acetonitrile and hydrogen cyanide
12/07/2000WO2000072962A1 Process for improving activity and selectivity of ammoxidation catalyst
12/06/2000EP1057807A1 Process for producing nitriles
12/06/2000CN1059200C Process for producing substituted benzoyl fatty acid derivative
12/05/2000US6156922 Method for the synthesis of an aromatic derivative ortho-disubstituted by a halogen atom other than fluorine and by a cyano group
12/05/2000US6156921 The system enables the production of acrylonitriles from a feed stream comprising ammonia, propylene and oxygen/or air, without experiencing an oxygen deficiency with a safety margin of atleast 25%
12/05/2000US6156920 Molybdenum promoted vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation
12/05/2000US6156694 As hydrogenation catalysts
11/2000
11/30/2000WO2000071503A1 4-cyano-3-hydroxy butanoyl hydrazines, derivatives and process for the preparation thereof
11/30/2000WO2000071500A1 Halogen compounds
11/30/2000DE19924050A1 Verfahren zur Herstellung von Alken-Verbindungen Process for the preparation of alkene compounds
11/29/2000EP1055653A2 Process for the preparation of alkenyl compounds
11/29/2000EP1054860A1 Process for the synthesis of 1,3-diols
11/29/2000CN1275052A Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids
11/28/2000US6153810 Highly selective process for making o-arylbenzonitriles
11/28/2000US6153800 Hydroformylation of unsaturated organic compounds in the presence of phosphite ligands and monodentate phosphine
11/28/2000US6153784 Removing the halide-containing phase-transfer catalyst, used to prepare nitriles by reacting haloalkanes and metal cyanides, by heating; adding a base of group 1a metal hydroxides, carbonates or bicarbonates and separating
11/23/2000DE19922934A1 New 5,5-dihalo- or 4,5,5-trihalo-4-pentenoic acid derivatives, useful as bactericides, fungicides, insecticides, acaricides and nematocides, especially plant fungicides
11/23/2000DE19922642A1 Herstellung von geradkettigen Acrylnitril-Dimeren Production of straight-chain acrylonitrile dimers
11/22/2000EP1053997A2 Process for the preparation of linear acrylonitril dimers
11/22/2000CN1274356A Process for prepn. of optically active 2-(16-(hydroxymethyl)-1,3-dioxan-4-yl) acetic acid derivatives
11/16/2000DE19921484A1 Cyanoacrylate preparation involves condensation of cyanoacetic esters with formaldehyde followed by depolymerization, with polyethylene glycol dialkyl ether present in both stages
11/15/2000EP0901453B1 Method for organic reactions
11/15/2000CN1273238A Fixed-bed process for preparing pentachlorophenyl nitrile by catalytic chloration of phenyl nitrile
11/15/2000CN1273136A Method for avoiding polymerization generation in film-type evaporator
11/14/2000US6147247 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine
11/14/2000CA1341138C Fluorine-containing chiral smectic liquid crystals
11/09/2000WO2000021922A3 Chemical processes
11/08/2000EP1050526A1 Process for preparing tert-alkyl ester from carboxylic acid
11/07/2000US6143916 Ammoxidatio with an ammoxidation catalyst comprising a mixed oxide of molybdenum, niobium, tellurium or antimony and one other metal in specific ratio and exhibits a specific x-ray diffraction pattern
11/07/2000US6143915 Production of acrylonitrile by the ammoxidation of propylene in the presence of a particulate catalyst as an oxygen carrier through reversible oxidation-reduction while controlling temperatures and selectivity in reactors
11/07/2000US6143896 Process for the alkylation of alkyl-or benzylcyanogen derivatives in the presence of trialkylamines or trialkylphosphines
11/07/2000US6143690 Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane
11/02/2000WO2000064862A2 Process for hydrogenating dinitriles in aminonitriles
11/02/2000WO2000064861A2 Method of producing acetone-cyanhydrin
11/02/2000WO2000064841A2 Phosphine ligands, metal complexes and compositions thereof for cross-coupling reactions
11/02/2000EP0846097B1 Hydroformylation process
11/02/2000EP0846096B1 Hydroformylation process
11/02/2000CA2371403A1 Aminonitrile production
11/01/2000CN1271723A Preparation of tirt nitrile substituted aromatic compound
10/2000
10/31/2000US6140527 Process for producing butyric ester derivatives
10/31/2000US6140265 Catalyst for cross-coupling reactions
10/26/2000WO2000063164A1 Method for carrying out the side chain bromination of 4-methyl biphenyl derivatives substituted at the 2'-position
10/26/2000WO2000063163A1 Process for the preparation of cyclopropylacetonitrile
10/26/2000DE19918246A1 Continuous production of acetone cyanhydrin, used e.g. for production of methacrylate, involves reacting hydrogen cyanide with acetone, scrubbing off-gas with pure acetone cyanhydrin and recycling the wash
10/25/2000EP1046635A1 Process for preparing an aromatic compound substituted by a tertiary nitrile
10/25/2000EP1046416A2 Method for preventing polymerization in thin-film type evaporating device
10/25/2000EP0906270B1 Process for producing hydroxyarenes
10/25/2000CN1271339A Method for producing aliphatic alpha, omega-amino nitriles
10/25/2000CN1270946A Preparing substituted olefine
10/25/2000CN1057757C Preparation of optical brighteners based on 1,2-diphenyl
10/24/2000US6136998 Ammoxidizing propylene by subjecting propylene, ammonia and oxygen to gas phase fluidized-bed reaction by heating and in presence of molybdenum-containing oxide catalyst having bismuth, iron and/or cerium and tellurium
10/24/2000US6136975 Method for producing trifluoroacetoacetic acid anilides
10/24/2000US6136326 Sealed package; bonding tissue; storage stability
10/24/2000US6136157 Method for organic reactions
10/19/2000WO2000061531A1 Method of producing biaryls
10/19/2000WO2000040547B1 α-SUBSTITUTION OF UNPROTECTED β-AMINO ESTER COMPOUNDS
10/19/2000DE19917025A1 Rapid preparation of 4-bromomethyl-biphenyl derivatives from 4-methyl compounds, using N-bromo-imide or -amide in carboxylic acid ester solvent, used as pharmaceutical intermediates
10/19/2000DE19916222A1 Verfahren zur Herstellung von Biarylen A process to prepare biaryls
10/18/2000EP1044948A2 Removal of an impurity from a mixture with a co-distillant
10/18/2000EP1043930A1 Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids
10/18/2000CN1270543A Catalyst comprising at least one phosphonite ligand based nickel (o) complex and method for the production of nitriles
10/18/2000CN1057470C Ether isonitriles and radiolabeled complexes thereof
10/17/2000WO2001028984A1 Method for producing acrylonitrile, catalyst for use therein and the method for preparing the same
10/17/2000US6133478 Catalyst and process for preparing amides
10/17/2000US6133468 Method for preparing substituted benzyl bromides
10/17/2000US6133432 Processes for preparing pesticidal intermediates
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