Patents
Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
11/1994
11/01/1994US5360924 Process for preparing aromatic olefins
11/01/1994CA1332834C Substituted basic 2-aminotetralins
10/1994
10/30/1994CA2122225A1 Process for preparing substituted 2-cyanocinnamic esters
10/26/1994EP0621254A2 Procedure for isomerising double bonds of pyrethrinoids
10/26/1994EP0527187B1 Hydrocyanation of conjugated 2-alkenoates
10/25/1994US5359119 Decomposition of a transition metal complex in presence of a base
10/25/1994US5358546 Reacting a zinc compound with a reducting agent
10/13/1994WO1994022911A2 A PROCESS AND INTERMEDIATE COMPOUNDS USEFUL FOR THE PREPARATION OF PLATELET GLYCOPROTEIN IIb/IIIa INHIBITORS CONTAINING Nα-METHYLARGININE
10/13/1994CA2159069A1 A process and intermediate compounds useful for the preparation of platelet glycoprotein iib/iiia inhibitors containing n -a- methylarginine
10/12/1994EP0619300A2 Process for the preparation of halogenmethylbenzoyl cyanides and halogenmethyl benzoylcyanides
10/12/1994EP0618895A1 Process for the preparation of an aminonitrile by partial hydrogenation of a nitrile compound with two or more nitrile groups.
10/12/1994EP0618891A1 Method for making valproic acid derivatives
10/11/1994US5354901 Perfluoro(cycloaliphatic methyleneoxyalkylene) carbonyl fluorides and derivatives thereof
10/04/1994US5352827 Reacting an acid halide with an alkali metal cyanide in presence of an alkylene oxide and polar compound
10/04/1994US5352826 Reacting an acid halide with an alkali metal cyanide in anhydrous solvent in presence of an alkylene oxide and polar compound
10/04/1994US5352819 Vapor phase treatment of branched saturated dinitriles with at least partially acidified cation exchanging clay, oxide or molecular sieve yields unsaturated straight mononitriles
09/1994
09/29/1994WO1994021747A1 1,2,2,2-tetrafluoroethylethers and liquid crystal medium
09/28/1994EP0497765B1 Process for the production of ortho-nitrobenzonitriles
09/27/1994US5350868 ω-hydroxy-(ω-3)-ketonitrile and method for preparing ω-hydroxyaliphatic acid
09/26/1994CA2119991A1 Process for the isomerization of double bonds
09/22/1994DE4324366C1 Catalyst for nucleophilic aromatic substitutions
09/20/1994US5349103 From aldehydes, hydroxylamine sulfate, propionic acid
09/20/1994US5349079 Process for forming α-aminonitriles from carbonyl compound and fatty amine hydrohalide
09/20/1994US5348870 Using hydrolase to effect ester interchange and resolution, then alcoholysis or hydrolysis and dehydration with cyclization and crystallization
09/20/1994US5348677 Electro-optical liquid crystal display element
09/20/1994CA1332060C Arylpyrrole insecticidal acaricidal and nematicidal agents and method for the preparation thereof
09/15/1994WO1994020510A1 Homogeneous bimetallic hydroformylation catalysts and processes utilizing these catalysts for conducting hydroformylation reactions
09/15/1994WO1994020455A1 Styryl derivatives, their preparation and use as pde-iv inhibitors
09/15/1994WO1994020446A1 Trisubstituted phenyl derivatives as phosphodiesterase inhibitors and processes for their preparation
09/14/1994EP0614870A2 Process for producing optically active aldehydes
09/14/1994EP0614868A1 Process for the preparation of 3 to 5 C-atoms containing alpha, beta-monoethylenic unsaturated aldehydes, carboxylic acids and nitriles
09/14/1994EP0435989B1 Process for the preparation of aromatic nitriles
09/14/1994CN1092058A Process for stabilizing phosphite ligands
09/13/1994US5347036 Substituted di-t-butylphenols
09/13/1994US5347033 From adiponitrile and water, copper catalyst
09/13/1994US5347032 Preparation of alkyl cyanoacetates
09/13/1994US5346816 Enzymatic process for the enantioselective preparation of optically active cyanohydrins
09/13/1994CA1331992C Phenylacetonitriles which are substituted by basic groups, their preparation and drugs containing these substances
09/11/1994CA2115973A1 Preparation of c3-c5.alpha., .beta.-monoethylenically unsaturated aldehydes, carboxylic acids, or nitriles
09/07/1994EP0613882A1 Process for the preparation of 5-cyanovaleric acid ester
09/07/1994EP0613719A1 Nickel catalyst for the cyanation of aromatic halides
09/07/1994CN1025851C Prodn. of cyanides by making use of hydroxy propanone cyanide as raw material instead of sodium (potassium) cyanide
09/06/1994US5345030 Inhibiting popcorn polymer formation with sulfur-containing compounds
09/06/1994CA2116828A1 Nickel catalyst for the cyanation of aromatic halides
09/01/1994WO1994019317A1 Process for the preparation of ortho-hydroxy substituted aromatic nitriles via dehydration of the corresponding aldoximes
09/01/1994WO1994019315A1 New compounds
08/1994
08/31/1994EP0612721A1 Aliphatic omega-hydroxy-3-ketonitriles and process for the preparation of aliphatic omega-hydroxycarboxylic acids
08/31/1994EP0612720A1 Process for producing 1,4-dicyano-2-butene
08/31/1994EP0612716A1 Process for the preparation of an optically pure aminoalcohol
08/31/1994CN1091424A Anipamil racemate resolution
08/27/1994CA2116155A1 Process for producing 1,4-dicyano-2-butene
08/25/1994DE4404589A1 Process for the preparation of dicyanobenzenes by means of ammoxidation
08/24/1994EP0611750A1 Process for the preparation of mixtures of 3-aminopropionitrile and ethylene cyanhydrine
08/23/1994CA1331628C Preparation of 4-pentenenitrile by isomerization
08/23/1994CA1331606C Calcium independent camp phosphodiesterase inhibitor antidepressant
08/17/1994EP0610384A1 Process for the preparation of fluorinated benzoic acids.
08/10/1994EP0609736A1 Method for the preparation of mono-N-beta-cyanoethylanilines
08/09/1994US5336804 Ammoxidation of saturated hydrocarbons
08/05/1994CA2114702A1 Process for the preparation of mono-n-.beta.-cyanoethylanilines
08/03/1994EP0609179A1 Preparation of aromatic nitriles
08/03/1994EP0608725A2 Process for preparing aminomethylene compounds
08/03/1994EP0608714A1 Process for preparing chlorinated 4,5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehyde
08/03/1994EP0608713A1 2,3-Difluoro-6-introbenzonitrile and 2-chloro-5,6-difluorobenzonitrile, process for their preparation and their use in the preparation of 2,3,6-trifluorobenzoic acid
08/03/1994EP0363458B1 2,3-difluorobenzenes
08/03/1994CN1090270A Vaccum rectification for purifying acetone cyanohydrin
08/03/1994CN1025552C Halide catalyst for acrylonitrile fluid bed
08/02/1994US5334745 Reacting an amine with an acrylonitrile over a heterogeneous catalyst
08/02/1994US5334744 Separation of isomer pair 1 and isomer pair 2 by treating in a organic solvent in presence of alkali metal cyanide
08/02/1994US5334743 Using solid catalyst to product unsaturated nitrile
08/02/1994US5334710 Compounds having non-linear optical properties
07/1994
07/30/1994CA2114504A1 Process for the preparation of chlorinated 4, 5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehydes
07/27/1994EP0607802A1 Process for the preparation of a mixture of aminomethylenated glutacononitriles
07/26/1994US5332855 Unsaturated nitriles
07/26/1994US5332844 Method of producing straight-chain acrylonitrile dimers
07/26/1994US5332826 Process for preparing aminoacetonitriles in one vessel
07/26/1994US5332825 Single vessel synthesis of aminoacetonitriles
07/26/1994CA1330985C Catalyst and catalyst precursor containing vanadium and antimony
07/24/1994CA2113973A1 2,3-difluoro-6-nitrobenzonitrile and 2-chloro-5, 6-difluorobenzonitrile(2,3-difluoro-6-chlorobenzonitrile), process for their preparation and their use for the preparation of 2,3,6-trifluorobenzoic acid
07/21/1994WO1994015941A1 α-AMINONITRILES DERIVED FROM AN AMINO SUGAR
07/21/1994WO1994015907A1 Process for the preparation of esters of 2-cyanoacrylic acid and use of the esters so prepared as adhesives
07/21/1994CA2153342A1 Process for the preparation of esters of 2-cyanoacrylic acid and use of the esters so prepared as adhesives
07/20/1994EP0606924A1 Process for producing E-isomers of methoxyminoacetamide compounds
07/20/1994CN1089596A A method for eliminating nitriding during acrylonitrile production
07/13/1994EP0606065A1 Method for the preparation of biphenyl derivatives
07/13/1994EP0606057A1 Process for the preparation of aromatic olefins
07/07/1994WO1994014759A1 Process for the preparation of (meth)acrylonitrile by ammoxidation
07/07/1994WO1994014757A1 Process and intermediate products for preparing hydroxylamine-ethers and their salts
07/07/1994WO1994014752A1 Ammonolysis of nylon
07/07/1994CA2112795A1 Process for the preparation of biphenyl derivatives
07/06/1994EP0605392A1 Process for producing methoxyminoacetamide compounds
06/1994
06/29/1994EP0603836A1 Process for preparing a catalyst useful for producing a nitrile
06/29/1994CN1088574A Synthesizing process for 2.6-dimethyl-4-tertiary butyl-3-nitro-phenethyl cyanogen
06/29/1994CN1025186C Substituted bicycloheptandione derivatives and herbicide containin same
06/28/1994US5324859 Deuterated benzaldehydes
06/28/1994CA1330445C Herbicidal amide of 4-trifluoromethyl 3'-carboxyl-4'nitro diphenyl ethers
06/23/1994WO1994013625A1 Process for forming alpha-aminonitriles
06/23/1994WO1994013619A1 Benzoylcyclohexenones, methods of preparing them and their use as herbicides and plant-growth regulators
06/23/1994CA2151803A1 Process for forming alpha-aminonitriles
06/23/1994CA2151498A1 Benzoylcyclohexenones, processes for their preparation and their use as herbicides and plant growth regulators
06/21/1994US5322948 Reacting unsaturated diacid or derivative with hydroxylamine or a salt thereof to form N-hydroxy-2-aminobutane diacid derivative