Patents
Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
12/1997
12/17/1997EP0812822A2 Process for the preparation of aminoacetic acids substituted at position alpha by a tertiary hydrocarbon chain or their nitriles
12/17/1997EP0812308A1 Method for synthesis of aryl difluoromethyl ethers and the like
12/17/1997CN1167757A Improved acrylonitrile recovery process
12/16/1997US5698745 Contacting olefin, hydrogen, carbon monoxide in solvent containing dissolved catalyst comprising halide-free platinum compound, bidentate diarylphosphine ligand having ferrocene bridge, acid promoter to produce linear aldehyde
12/16/1997US5698735 Reacting sulfonyloxy-activated hydroxyacetic acid with an aromatic compound
12/16/1997US5698730 Transesterification reaction of cyanoacetic acid ester with alcohol in the presence of organotin catalyst
12/11/1997WO1997046514A1 Process for the preparation of hydrazine derivatives useful as intermediates for the preparation of peptide analogues
12/11/1997WO1997046306A1 Method for filtering a three-phased reaction mixture
12/11/1997DE19724086A1 Preparation of aminoacetic acid derivatives
12/10/1997EP0811609A2 Improved acrylonitrile recovery process
12/09/1997US5696280 Using a catalyst containing phosphite groups
12/09/1997US5696075 Organoleptic
12/09/1997US5696047 Method of improving catalyst activity, improved catalysts and their use
12/04/1997WO1997045398A1 Process for producing hydroxyarenes
12/03/1997EP0809492A1 Il-8 receptor antagonists
12/03/1997CN1166827A Process for preparing halogenated methyl benzoyl cyanides
12/03/1997CN1166378A New catalyst for preparing 2,6-dichlorobenzyl nitrile by ammonia oxidation process
12/03/1997CN1036581C Method for ammoxidation of olefine
12/02/1997US5693843 Reacting aliphatic diolefin in liquid phase with hydrocyanic acid in presence of catalyst comprising zero-valent nickel compound and specified bidentate phosphorus compound
12/02/1997US5693793 Preparation of caprolactam from 6-aminocapronitrile
12/02/1997US5693587 Reacting monoperoxovanadium ion while in aqueous solution with antimony compound, removing water and calcining
11/1997
11/27/1997DE19620992A1 Verfahren zur Herstellung von Hydroxyarenen A process for preparing hydroxyarenes
11/26/1997EP0808827A1 Production process for aromatic compounds
11/26/1997EP0808302A1 2-aryl-2-alkyl-omega-alkylaminoalkane nitrile racemate separation process
11/20/1997WO1997043230A1 Method for organic reactions
11/19/1997EP0807622A1 Process for producing unsaturated nitriles
11/19/1997EP0807120A1 Ruthenium hydrogenation catalysts
11/19/1997EP0807119A1 Process for the preparation of ruthenium complexes and their in situ use as hydrogenation catalysts
11/19/1997EP0807098A1 Improved process for reductive hydrolysis of nitriles
11/18/1997US5689003 Ruthenium hydrogenation catalysts
11/18/1997US5688986 Processes and catalyst compositions for hydrocyanation of monoolefins
11/18/1997US5688985 Reacting n,n-dibenzylaminophenylalanine ester with acetonitrile in presence of an organometallic catalyst
11/18/1997US5688945 Compounds
11/12/1997EP0805808A1 Process for the preparation of 1-(thiomethyl)-cyclopropaneacetic acid
11/12/1997EP0805797A1 Process for producing n-arylhydroxylamines and n-hetarylhydroxylamines
11/11/1997US5686608 Process for cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates
11/11/1997US5686381 Mixed V/Sb/Sn oxide ammoxidation catalysts
11/06/1997WO1997036855A3 Catalyzed vapor-phase hidrocyanation of diolefinic compounds
11/05/1997EP0804412A1 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
11/05/1997CN1163887A Process for producing alpha-(tert-alkyl) cyanoacetic acid ester
11/04/1997US5684200 Multistage process of hydroxylamines reacted with alkylation agent with desulfonation to form intermediates for crop protection and drugs
10/1997
10/29/1997EP0757980B1 Process for the preparation of 3-aminomethyl-3,5,5-trimethyl cyclohexylamine
10/29/1997CN1163607A Process for production of acrylonitrile dimers
10/29/1997CN1163606A Catalyzed vapor phase hydrocyanation of diolefinic compounds
10/29/1997CN1163262A Process for preparing 1,4-diamino-2,3-dicyan anthraquinone
10/28/1997US5681979 Process for the producing of alkylcyclopentanone derivatives
10/22/1997EP0801641A1 Process for preparing aliphatic alpha,omega-aminonitriles in the gaseous phase
10/22/1997CN1162955A 2-cyanoacrylic acid esters
10/22/1997CN1036192C Method for producing a nitrile
10/21/1997US5679851 Perfluoro unsaturated nitrile compound and process for producing the same
10/21/1997US5679826 Process for the preparation of 2-chloroacrylonitrile
10/21/1997US5679237 Electrolyzing aqueous solution catholyte containing transition metal compound and sulfonated phosphine
10/21/1997CA2116464C Process for the preparation of an optically pure aminoalcohol
10/16/1997WO1997037964A1 Method of simultaneously producing 6-aminocapronitrile and hexamethylenediamine
10/16/1997WO1997037963A1 Method of producing amines and aminonitriles
10/16/1997DE19614283A1 Verfahren zur Herstellung von Aminen und Aminonitrilen A process for preparing amines and aminonitriles
10/15/1997EP0800509A1 Process for preparing aliphatic alpha,omega-aminonitriles
10/15/1997EP0800508A1 Process for preparing aliphatic alpha,omega-aminonitriles
10/15/1997EP0800507A1 Process for preparing aliphatic alpha,omega-aminonitriles
10/15/1997EP0800506A1 Solventless process for making 2,6-difluorobenzonitrile
10/15/1997EP0800421A1 Method of producing a hydrogenation catalyser
10/09/1997WO1997036865A1 PROCESS FOR PRODUCING INTERMEDIATE COMPOUNDS FOR THE PRODUCTION OF FACTOR Xa INHIBITORS
10/09/1997WO1997036856A1 Catalyzed vapor-phase isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
10/09/1997WO1997036855A2 Catalyzed vapor-phase hidrocyanation of diolefinic compounds
10/08/1997EP0799894A2 Process for the preparation of (S)-Cyanhydrines
10/08/1997EP0799190A1 Process for producing pentene-nitriles
10/08/1997CN1161327A Prepn. of aromatic or heteroaromatic nitriles
10/07/1997USH1686 Contacting acrylonitrile with activated alumina adsorbent for time sufficient for hydrogen peroxide contaminent to be adsorbed and produces acrylonitrile product having less than 0.2 ppm peroxide impurity
10/07/1997US5675057 Calcining and heat treating a mixed oxide catalyst used in the ammoxidation of hydrocarbons to form acrylonitrile
10/07/1997US5675045 Process for the catalytic selective hydrogenation of polyunsaturated organic substances
10/02/1997WO1997036178A1 Method to monitor and control chemical treatment of petroleum, petrochemical and processes with on-line quartz crystal microbalance sensors
10/02/1997WO1997035838A1 Fungicidally active carboxylic acid amides
10/02/1997DE19612814A1 Calamitic acyl cyclohexane(s) used as intermediates for liquid crystal or mesogenic compounds
10/01/1997EP0797568A1 Method for partially hydrogenating dinitriles to aminonitriles
10/01/1997CN1035995C The process for preparing methyl t-amine by reacting hexamethenamine with amine or nitrile
09/1997
09/30/1997US5672718 Pesticides
09/25/1997DE19614154C1 Verfahren zur gleichzeitigen Herstellung von 6-Aminocapronitril und Hexamethylendiamin A process for the simultaneous preparation of 6-aminocapronitrile and hexamethylenediamine
09/24/1997CN1035942C Higher cyanoacetic ester
09/23/1997US5670700 Hydroformylation process
09/23/1997US5670694 Process for the preparation of 2,4-dichloro-5-fluorobenzonitrile and 2,6-dichloro-3-fluorobenzonitrile
09/18/1997WO1997033863A1 Process for preparing unsaturated nitrile
09/18/1997WO1997033854A1 Process to prepare a terminal aldehyde
09/18/1997WO1997033846A1 Process for preparing nitrobiphenylene
09/18/1997CA2249026A1 Process to prepare a terminal aldehyde
09/17/1997EP0795542A1 Process for the production of acrylonitrile dimers
09/17/1997EP0795541A1 Method for production of nuclear halogenated aromatic compound possessing cyano groups
09/17/1997CN1159802A Process for producing quaternary glycine nitriles
09/17/1997CN1159799A Hydrocyanation process and multidentate phosphite and nickel catalyst composition therefor
09/16/1997US5668277 Depolymerization of polyamides
09/12/1997WO1997032843A1 New processes for preparing pesticidal intermediates
09/12/1997WO1997032835A1 Process for producing fluorine compounds
09/11/1997DE19630788C1 Amine(s) preparation by hydrogenation, especially of nitrile(s)
09/10/1997EP0793642A1 Process for preparing halogenated methyl benzoyl cyanides
09/10/1997EP0673381A4 Homogeneous bimetallic hydroformylation catalysts and processes utilizing these catalysts for conducting hydroformylation reactions.
09/10/1997EP0640070B1 Styryl derivatives, their preparation and use as pde-iv inhibitors
09/03/1997EP0792260A1 Catalyzed gas phase isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
09/03/1997EP0792259A1 Catalyzed vapor phase hydrocyanation of diolefinic compounds
09/03/1997EP0618895B1 Process for the preparation of an aminonitrile by partial hydrogenation of a nitrile compound with two or more nitrile groups
09/03/1997EP0610384B1 Process for the preparation of fluorinated benzoic acids
09/03/1997EP0440643B1 Fluorinated 4''-cyano substituted terphenyls
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