| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 08/05/1999 | DE19803408A1 Alpha, alpha-disubstituted benzyl cyanide preparation in high yield and purity |
| 08/04/1999 | EP0792259B1 Catalyzed vapor phase hydrocyanation of diolefinic compounds |
| 08/04/1999 | CN1224713A Method of producing aminocyanoacetamide |
| 08/03/1999 | US5932756 Platimun, dialkylphosphine complex |
| 07/28/1999 | EP0931059A1 Method for preparing a cyanobiphenyl |
| 07/28/1999 | EP0931058A1 Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles |
| 07/28/1999 | EP0931057A1 Method for preparing 4-methyl-biphenyl derivatives |
| 07/28/1999 | CN1224413A Process to prepare terminal aldehyde |
| 07/28/1999 | CN1223903A Improved catalyst for manufacture of acrylonitrile and hydrogen cyanide |
| 07/28/1999 | CN1044338C Catalyst for preparing cyanopyridine by ammoxidation of alkyl-pyridine and its use |
| 07/21/1999 | EP0930295A2 Process for producing nitrile compound and catalyst used therefor |
| 07/21/1999 | EP0929513A1 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine |
| 07/21/1999 | EP0764148B1 Process for preparing biscyanoacrylates |
| 07/21/1999 | EP0734363B1 Fluorination process |
| 07/21/1999 | CN1223600A Method for filtering a three-phased reaction mixture |
| 07/14/1999 | EP0792260B1 Catalyzed gas phase isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 07/14/1999 | CN1222505A Process for alkylation of alkyl- or benzylcyanogen derivatives in presence of trialkylamines or -phosphines |
| 07/13/1999 | US5922912 Prepared by hydration of acrylonitrile in concentration apparatus whose solution containing section is made from copper containing material and concentration is conducted while introducing oxygen-containing gas into apparatus |
| 07/13/1999 | US5922901 Using ruthenium complex catalyst |
| 07/13/1999 | US5922898 Coupling arylmagnesium or -lithium reagent with aryl halide;catalysis with nickel or palladium catalyst and zinc or cadmium cocatalyst |
| 07/08/1999 | WO1999033788A2 Method for producing aromatic bromomethyl biphenyl compounds |
| 07/08/1999 | WO1999033561A1 Method for regenerating a hydrogenation catalyst, method for hydrogenating compounds comprising nitrile functions |
| 07/08/1999 | DE19757995A1 Verfahren zur Herstellung von aromatischen Brommethyl-Verbindungen A process for the preparation of aromatic bromomethyl compounds |
| 07/07/1999 | EP0927157A1 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine |
| 07/07/1999 | EP0927156A1 Biphenyl butyric acids and their derivatives as inhibitors of matrix metalloproteinases |
| 07/07/1999 | CN2327683Y Reactor for ammoxidation of halogenated aromatic hydrocarbons |
| 07/07/1999 | CN1222132A Monomer recovery process for contaminated polymers |
| 07/06/1999 | US5919930 Process for cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates |
| 07/01/1999 | WO1999032434A1 Process for the synthesis of 1,3-diols |
| 07/01/1999 | WO1999010314A3 Method for producing long-chain glycine-n,n-diacetic acid derivatives |
| 06/30/1999 | EP0926135A2 Processes for producing alpha-aminonitrile derivatives and alpha-amino acids |
| 06/30/1999 | EP0926134A2 Processes for producing alpha-cyanohydrin esters and alpha-hydroxy acids |
| 06/30/1999 | EP0925277A1 New intermediates for the preparation of verapamil derivates |
| 06/30/1999 | EP0925276A1 Process for the manufacture of aliphatic alpha, omega amino nitriles |
| 06/30/1999 | EP0925106A1 Method for filtering a three-phased reaction mixture |
| 06/30/1999 | CN1221402A Manufacturing process for 6-aminocapronitrile |
| 06/29/1999 | US5917080 Preparation of 2-cyano-3,3-diarylacrylic esters |
| 06/29/1999 | US5917079 Process for synthesizing benzoic acids |
| 06/29/1999 | US5917067 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process, including 2-oxepanone-7-substituted products |
| 06/24/1999 | WO1999031050A1 Process for producing butyric ester derivatives |
| 06/24/1999 | WO1999018063A3 Process for preparing a cyclic amino acid anticonvulsant compound |
| 06/24/1999 | DE19756091A1 Alpha, alpha-disubstituted benzyl cyanide preparation in high yield and purity |
| 06/24/1999 | CA2278713A1 Process for producing butyric ester derivatives |
| 06/23/1999 | EP0924196A1 Process for the alkylation of alkyl- or benzonitrile in the presence of trialkyl amines or phosphines |
| 06/23/1999 | EP0924195A1 Process for the preparation of aminocyanacetamide |
| 06/23/1999 | EP0800507B1 Process for preparing aliphatic alpha,omega-aminonitriles |
| 06/23/1999 | CN1220258A Improved process for producing acrylonitrile or methacrylonitrile from propane or isobutane |
| 06/22/1999 | US5914424 Process for producing acrylonitrile |
| 06/22/1999 | CA1340602C Herbicidal substituted 1-(2-halophenyl)pyrazoles |
| 06/16/1999 | EP0922027A1 Method for purifying lactams |
| 06/16/1999 | EP0757672B1 Monodentate phosphite and nickel catalyst composition for monoolefin hydrocyanation |
| 06/16/1999 | CN1219532A Catalyst for propylene and isobutylene ammoxidation fluidized bed |
| 06/15/1999 | US5912390 Method for the work-up of a surfactant-containing reaction mixture |
| 06/15/1999 | US5912352 Catalytic reduction of hydrazide to hydrazine derivative in presence of complex hydride; acyl migration; hydrogenation; catalyst selectivity |
| 06/10/1999 | WO1999010315A3 Process for preparing 2-cyanoindan-1-ones |
| 06/09/1999 | EP0921115A2 Process for making aromatic nitriles |
| 06/09/1999 | EP0685460B1 Process for producing higher cyanoacetic ester |
| 06/09/1999 | CN1218798A Process for preparing 1,4-diamino anthraquinone-2,3-dicyan |
| 06/09/1999 | CN1218797A Process for preparing optical 2-amino-omega-oxo alkane acid derivative |
| 06/08/1999 | US5910601 Chiral nitriles, their preparation and their use for the manufacture of verapamil and analogues |
| 06/03/1999 | WO1999026917A1 Method for hydrogenating dinitriles |
| 06/03/1999 | CA2310145A1 Method for hydrogenating dinitriles |
| 06/02/1999 | EP0919543A2 Waste minimization and product recovery process |
| 06/02/1999 | CA2254448A1 Process for making aromatic nitriles |
| 06/01/1999 | US5908961 Under aqueous acidic conditions; continuous monitoring ofph |
| 06/01/1999 | US5908953 Method for producing (R)-4-cyano-3-hydroxybutyric acid lower alkyl ester |
| 06/01/1999 | CA2070176C Procedure for obtaining derivatives of acetic acid |
| 05/27/1999 | WO1999025681A1 Method for preparing bromomethyl-biphenyl derivatives |
| 05/26/1999 | CN1217710A 'gamma'-oxo-homophenylalanine derivative and process for producing homophenylalanine derivatives by reducing same |
| 05/26/1999 | CN1217324A Process for recovering and refining olefinic nitrile |
| 05/26/1999 | CN1217323A Olefinic nitrile emergency cooling process |
| 05/25/1999 | US5907053 Method for preparing acrylonitrile |
| 05/25/1999 | US5907052 Catalytic reaction with oxide of molybdenum, tellurium, vanadium and niobium |
| 05/25/1999 | CA2174808C Process for the condensation of hydrogen cyanide with an aldehyde |
| 05/19/1999 | EP0915839A1 Manufacturing process for 6-aminocapronitrile |
| 05/19/1999 | EP0915838A1 Process for preparing 6-aminocapronitrile |
| 05/19/1999 | EP0915827A1 Process for producing amines and amino nitriles |
| 05/19/1999 | EP0713724B1 Ammoxidation catalyst composition and process for producing acrylonitrile or methacrylonitrile by using the same |
| 05/19/1999 | CN1216721A Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation |
| 05/11/1999 | US5902896 Reacting paraformaldehyde with acidic compounds such as diethyl malonate in an anhydrous medium using a basic catalyst; high yields; chemical intermediates for ultraviolet stabilizers or radioopaque media production |
| 05/11/1999 | US5902883 Cyanobutylation of ammonia, alkylamines and hydrazine with 3-pentenenitrile, 4-pentenenitrile or mixtures thereof |
| 05/06/1999 | EP0912508A1 Process for preparing caprolactam from 6-aminocapronitrile |
| 05/06/1999 | EP0912468A1 Monomer recovery process for contaminated polymers |
| 05/06/1999 | DE19847656A1 Ammoxidation catalysts for acrylonitrile production |
| 05/05/1999 | CN1216038A Process for preparation of cyanoarylmethylamine |
| 05/05/1999 | CN1216037A Method of producing amines and aminonitriles |
| 05/05/1999 | CN1215990A IL-8 receptor antagonists |
| 05/05/1999 | CN1043228C Process for producing halogenophennoxyfatty acid derivs. by selective halogenation and halogenophenoxyfatty acid derivs. |
| 05/04/1999 | US5900511 To hexamethylenediamine and optionally to amninocapronitrile. low temperature and pressure, sponge cobalt catalyst |
| 05/04/1999 | US5900503 Process for producing optically active cyanohydrins |
| 05/04/1999 | US5900502 Fluorination process |
| 04/28/1999 | EP0911339A1 Method of making phosphorochloridites |
| 04/28/1999 | CN1215388A Method of simultaneously producing 6-aminocapronitrile and hexamethylenediamine |
| 04/22/1999 | WO1999018793A1 Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids |
| 04/22/1999 | CA2305614A1 Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids |
| 04/20/1999 | US5895822 Process for purifying acrylonitrile |
| 04/20/1999 | US5895635 Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system |
| 04/15/1999 | WO1999018063A2 Process for preparing a cyclic amino acid anticonvulsant compound |
| 04/15/1999 | WO1999018057A1 Preparation of diaryl ether by condensation reactions |
| 04/14/1999 | EP0908447A1 Process for the preparation of cyanoarylmethylamine |