| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) | 
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| 09/02/1997 | US5663410 Cis-4-(2,2,3,3-tetrafluoropropoxy)-cinnamonitrile and trans-4-(2,2,3,3-tetrafluoropropoxy)-cinnamonitrile and a process for their preparation | 
| 09/02/1997 | US5663392 Dissolving soluble compounds of vanadium, antimony and titanium in an alcohol, contacting alcoholic solution with water to precipitate mixed oxide and separating mixed oxide | 
| 09/02/1997 | US5663369 Hydrocyanation process and multidentate phosphite and nickel catalyst composition therefor | 
| 09/02/1997 | US5663113 Ammoxidation catalyst composition | 
| 09/02/1997 | CA1339424C Process for the production of nitriles and oxides | 
| 08/28/1997 | WO1997030970A1 Method for producing unsymmetrically substituted biphenyls | 
| 08/28/1997 | CA2246354A1 Method for producing unsymmetrically substituted biphenyls | 
| 08/27/1997 | EP0790980A1 2-cyanoacrylic acid esters | 
| 08/27/1997 | CN1158118A Process for preparing aromatic aldehydes | 
| 08/26/1997 | US5661183 Prevention or treatment of neurodegeneration | 
| 08/21/1997 | WO1997029743A1 Il-8 receptor antagonists | 
| 08/21/1997 | CA2245927A1 Il-8 receptor antagonists | 
| 08/20/1997 | EP0790234A1 Process for the preparation of aromatic nitriles | 
| 08/20/1997 | EP0789540A1 Analyte-controlled liquid delivery device and analyte monitor | 
| 08/14/1997 | WO1997029082A1 Process for producing optically active cyanohydrins | 
| 08/14/1997 | WO1997029080A1 Racemisation of quaternary chiral centers | 
| 08/14/1997 | DE19703314A1 Preparation of (S)-cyanohydrin compounds | 
| 08/14/1997 | CA2244364A1 Resolution of 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexanoic acid | 
| 08/14/1997 | CA2242572A1 Racemisation of quaternary chiral centers | 
| 08/13/1997 | CN1156721A Process for manufacturing nitriles | 
| 08/12/1997 | CA2089983C Process for ammoxidizing saturated hydrocarbons | 
| 08/05/1997 | US5654465 Process for the production of cyanocinnamamides | 
| 08/05/1997 | CA1339221C Polyhydroxybenzoic acid derivatives | 
| 07/30/1997 | EP0786452A1 Process for producing alpha-(tert-alkyl)cyanoacetic acid ester | 
| 07/30/1997 | CN1155537A Preparation of alpha-3,4,5-trimethylbenzene methylene-beta-methoxypropionitrile | 
| 07/30/1997 | CN1155536A Method for producing nitrile | 
| 07/29/1997 | CA1339139C Preparation of o-substituted hydroxylamines | 
| 07/23/1997 | EP0785186A1 Process for preparing diels-alder addition product from conjugated diolefin and acrylonitrile | 
| 07/23/1997 | EP0785177A2 Process for the oxidation and oxidehydrogenation of hydrocarbons in a turbulent layer | 
| 07/23/1997 | EP0784610A1 Hydrocyanation process and multidentate phosphite and nickel catalyst composition therefor | 
| 07/17/1997 | WO1997025307A1 PROCESS FOR PRODUCING α.β-UNSATURATED NITRILE | 
| 07/16/1997 | CN1154361A Preparation of alkyl cyanoacetates | 
| 07/15/1997 | US5648541 Forming enantiomers from imines by reduction with lithium aluminum hydride | 
| 07/15/1997 | US5648386 Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds | 
| 07/10/1997 | WO1997024318A1 Method for synthesis of an aromatic derivative substituted by a halogen atom other than fluorine and by a cyano group | 
| 07/08/1997 | US5646304 Subjecting oxygen-containing gas to temperature swing adsorption; catalytic oxidation | 
| 07/03/1997 | WO1997023446A1 Improved process for hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles | 
| 07/03/1997 | WO1997023287A1 Method for preparing ammoxidation catalysts for a fluidised-bed or moving-bed reactor | 
| 07/02/1997 | EP0781757A1 Process for the preparation of fluorinated benzoic acids | 
| 07/01/1997 | US5643495 1,2,2,2-tetrafluoroethyl ethers, and liquid-crystalline medium | 
| 06/19/1997 | WO1997021659A1 Basic catalysts for the aldol reaction | 
| 06/18/1997 | EP0778832A1 Process for producing quaternary glycine nitriles | 
| 06/17/1997 | US5639921 Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby | 
| 06/12/1997 | WO1997020810A1 Process for the preparation of 1-aryl-1-cyanocyclobutane derivatives | 
| 06/12/1997 | CA2235043A1 Chemical process | 
| 06/11/1997 | EP0777639A1 Process for preparing aromatic aldehydes | 
| 06/11/1997 | CN1151745A Bidentate phosphine ligand | 
| 06/10/1997 | US5637767 Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid | 
| 06/10/1997 | US5637752 Method for preparing cyanoacetic acid higher ester | 
| 06/10/1997 | US5637751 Process for producing 1,4-dicyano-2-butene and catalyst therefor | 
| 06/10/1997 | US5637750 Method for the preparation of 2 hydroxybenzonitrile | 
| 06/10/1997 | US5637748 Process for synthesizing fluorinated nitrile compounds | 
| 06/10/1997 | US5637546 Calcining vanadium and molybdenum | 
| 06/04/1997 | EP0603225B1 PROCESS FOR PRODUCING alpha-CHLOR-METHYLEN-TRIORGANYLPHOSPHORANE DERIVATES | 
| 06/04/1997 | CN1151163A Preparation of triarylborane | 
| 06/03/1997 | CA2088808C Ammoxydation process for saturated hydrocarbons | 
| 05/28/1997 | EP0775691A1 Process for the preparation of nitriles | 
| 05/28/1997 | EP0775688A1 Method for producing addition reaction product of amines and alpha, beta-unsaturated compounds | 
| 05/28/1997 | EP0775519A1 Vanadium-containing catalyst, process for the production thereof, and use thereof | 
| 05/28/1997 | DE19543862A1 Hexa:methylene di:isocyanate preparation from technical raw material | 
| 05/28/1997 | CN1035002C Process for preparation of cyclopentene cyclopentane and cyclohexane derivatives | 
| 05/27/1997 | US5633400 Process for the preparation of biphenyl derivatives | 
| 05/27/1997 | US5633257 Phosphodiesterase inhibitor | 
| 05/21/1997 | EP0774452A1 Optically active compounds having plural chiral centers and the production thereof | 
| 05/21/1997 | CN1150146A Ammoxidation of alkanes and alkenes | 
| 05/21/1997 | CN1150135A Method and apparatus for direct oxygen injection with reactant stream into fluidized bed reactor | 
| 05/20/1997 | US5631403 Process for the preparation of hydroxycarboxanilides | 
| 05/20/1997 | US5631253 Fungicidal propenoic acid derivatives | 
| 05/14/1997 | EP0773210A1 Process for the preparation of fluorinated aromatic compounds | 
| 05/14/1997 | CN1034863C improved process for propylene ammoxidation to acrylonitrile | 
| 05/13/1997 | US5629451 Reduction of nitrile contaminants by selective hydrogenation | 
| 05/13/1997 | US5629444 Acrylonitrile recovery process | 
| 05/13/1997 | US5629443 Highly purified acetonitrile and process for purifying crude acetonitrile | 
| 05/13/1997 | US5629442 Reaction of nitrile with alkyl nitrite to form oxime substituted phenylacetonitrile | 
| 05/13/1997 | US5629441 Amination | 
| 05/13/1997 | US5629356 Photocurable composition containing ethylenically unsaturated photopolymerizable compound and the aminoacetophenone | 
| 05/12/1997 | CA2189945A1 Process for preparing fluorinated aromatics | 
| 05/09/1997 | WO1997016414A1 Preparation of aryl and vinyl nitriles | 
| 05/07/1997 | EP0771787A1 Process for the preparation of 2-chloroacrylonitrile | 
| 05/07/1997 | EP0771786A1 Preparation of aryl and vinyl nitriles | 
| 05/07/1997 | CN1149287A Process for the preparation of unsaturated amino compounds | 
| 05/02/1997 | EP0770597A1 Process for the preparation of cyanoacetic alkylesters | 
| 05/02/1997 | EP0770051A1 Aromatic ether acylation process | 
| 05/02/1997 | EP0770050A1 Aromatic ether acylation process | 
| 04/24/1997 | DE19607135C1 Prodn. of asymmetric cyano-bi:phenyl cpds. | 
| 04/23/1997 | CN1148041A Method for condensation reaction for hydrocyanic acid and aldehyde | 
| 04/16/1997 | EP0768300A1 Acrylonitrile solutions of maleimides, method for preparation thereof, and acrylonitrile based copolymers obtained by use of the solutions | 
| 04/15/1997 | US5621147 Liquid crystal intermediates | 
| 04/15/1997 | US5621134 Method for producing 4'-bromomethyl-2-cyanobiphenyl | 
| 04/10/1997 | WO1997012857A1 Ethylenically unsaturated organic compound hydrocyanation method | 
| 04/10/1997 | WO1997012839A1 Method for preparing ammoxidation catalysts | 
| 04/10/1997 | CA2231027A1 Ethylenically unsaturated organic compound hydrocyanation method | 
| 04/09/1997 | EP0767165A1 Process for the preparation of aromatic or heteroaromatic nitriles | 
| 04/09/1997 | EP0767164A1 Method for producing a nitrile | 
| 04/09/1997 | EP0766686A1 Preparation of triarylborane | 
| 04/09/1997 | EP0675871B1 Ammonolysis of nylon | 
| 04/09/1997 | EP0625137B1 Method of separating racemates of verapamil | 
| 04/09/1997 | CN1146988A Paraffin ammoxidation using vanadium antimony oxide based catalysts with halide promoters | 
| 04/08/1997 | US5618983 Contacting linear olefin compound, hydrogen, water and carbon monoxide in presence of platinum, palladium compounds complexed with bidentate diaryl phosphine ligands, and an organo-metallic promoter to form linear aldehyde | 
| 04/08/1997 | US5618975 Process for the preparation of biphenyl derivatives |