| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 01/28/1999 | DE19731783A1 Verfahren zur Herstellung von N-(5-Amino-2-cyano-4-fluor-phenyl)-sulfonamiden und neue Zwischenprodukte A process for preparing N- (5-amino-2-cyano-4-fluoro-phenyl) -sulfonamiden and novel intermediates |
| 01/28/1999 | CA2296675A1 Method for gas phase catalytic oxidation reaction of a hydrocarbon |
| 01/27/1999 | EP0893436A1 Process for producing cyanoformate esters |
| 01/27/1999 | EP0893435A2 Oxygen addition to reduce inerts in an acrylonitrile reactor |
| 01/27/1999 | EP0893434A1 Intermediates for the preparation of oximethers |
| 01/27/1999 | EP0892778A1 Method of simultaneously producing 6-aminocapronitrile and hexamethylenediamine |
| 01/27/1999 | EP0892777A1 Method of producing amines and aminonitriles |
| 01/25/1999 | CA2243871A1 Oxygen addition to reduce inerts in an acrylonitrile reactor |
| 01/22/1999 | CA2243691A1 Process for producing cyanoformate esters |
| 01/21/1999 | DE19832033A1 Production of acrylonitrile or methacrylonitrile |
| 01/20/1999 | EP0891967A1 Improved acrylonitrile recovery process |
| 01/20/1999 | EP0891810A1 Method for preparing improved vanadium antimony oxide based oxidation and ammoxidation catalysts |
| 01/20/1999 | EP0891324A1 Catalyzed vapor-phase isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 01/20/1999 | EP0891323A2 Catalyzed vapor-phase hidrocyanation of diolefinic compounds |
| 01/20/1999 | EP0724481B1 METHOD FOR THE PRODUCTION OF CATALYTICALLY ACTIVE MULTI-METAL OXIDE COMPOSITIONS CONTAINING THE ELEMENTS V AND Mo IN OXIDE FORM AS THEIR MAIN COMPONENTS |
| 01/20/1999 | CN1205685A Improved process for hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 01/20/1999 | CN1205654A Method for preparing ammoxidation catalysts for fluidised-bed or moving-bed reactor |
| 01/20/1999 | CN1041721C Cyanhydrin process for preparing methyl cyanide chrysanthemic easter from tetramethyl cyclopropane carboxylic acid |
| 01/19/1999 | US5861528 Process for preparing diels-alder addition product from conjugated diolefin and acrylonitrile |
| 01/14/1999 | WO1999001425A1 Method for production of 2,4,5-trifluorobenzonitrile |
| 01/14/1999 | WO1999001410A1 Methods for inhibiting the polymerization of vinyl monomers |
| 01/13/1999 | EP0890572A1 Purification of acetonitrile by a distillative recovery/ion exchange resin treatment process |
| 01/13/1999 | CN1205003A Process for producing optically active cyanohydrins |
| 01/13/1999 | CN1204620A Process for recovery and recycle of ammonia from acrylonitrile reactor efflvent stream using ammonium phosphate quench system |
| 01/12/1999 | US5859280 Adding alpha-tocopherol inhibits polymerization during processing, storage, transportation; can be mixed with hydroquinone for synergistic inhibition |
| 01/12/1999 | US5858211 Using a homogeneous mixture of a cationic nonacidic zeolite and an inorganic oxide matrix |
| 01/12/1999 | CA2117725C Process for the isomerization of methyl-2 butene-3 nitrile |
| 01/07/1999 | EP0889027A1 Process for preparing unsaturated nitrile |
| 01/07/1999 | EP0888291A1 New processes for preparing pesticidal intermediates |
| 01/07/1999 | EP0888288A1 Fungicidally active carboxylic acid amides |
| 01/07/1999 | EP0888274A1 Process to prepare a terminal aldehyde |
| 01/07/1999 | EP0888261A1 Process for preparing nitrobiphenylene |
| 01/07/1999 | DE19727890A1 Verfahren zur Herstellung von 2,4,5-Trifluor-benzonitril Process for the preparation of 2,4,5-trifluoro-benzonitrile |
| 01/05/1999 | US5856578 Process for the preparation of unsaturated amino compounds |
| 01/05/1999 | US5856557 Reacting tetrafluorophthalonitrile with alkali metal iodide;chemical intermediate of fluoropolymer |
| 01/05/1999 | US5856555 Water solubility phosphine compound and hydrogen cyanide |
| 12/30/1998 | WO1998058935A1 Alkene borates and a process for covalently coupling organic compounds |
| 12/30/1998 | EP0643689B1 Improved process for the synthesis of (5r)-1,1-dimethylethyl 6-cyano-5-hydroxy-3-oxo-hexanoate |
| 12/30/1998 | CN1203585A Process for preparation of 1-aryl-1-cyanocyclobutane derivatives |
| 12/30/1998 | CN1203223A Production method of aminobenzene compound |
| 12/30/1998 | CN1041434C Application of campholennitrile as perfumery |
| 12/30/1998 | CN1041413C Device for preparing alpha, beta-unsatisfied nitrile |
| 12/30/1998 | CA2295251A1 Alkene borates and a process for covalently coupling organic compounds |
| 12/29/1998 | US5854172 Preparation of vanadium antimonate based catalysts using SnO2 ·xH2 O |
| 12/24/1998 | DE19833409A1 4-Cyano-4'-hydroxy-bi:phenyl preparation in high yield |
| 12/23/1998 | EP0885879A1 Process for producing optically active cyanohydrins |
| 12/23/1998 | EP0885868A1 Oxidation-process for the production of aldehydes and ketones in the presence of nitrogen-containing compounds |
| 12/23/1998 | EP0885843A1 Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system |
| 12/23/1998 | EP0813518B1 Process for preparing alpha,beta-diaminoacrylnitriles |
| 12/23/1998 | CN1041306C Process for preparing alpha-cyanoacrylate |
| 12/23/1998 | CN1041301C Carbonylation of olefins |
| 12/22/1998 | US5852207 Process for producing cyanoformate esters |
| 12/17/1998 | WO1998056746A1 Polymerization inhibition of acrylates using blends of nitroxides |
| 12/16/1998 | EP0883603A1 Method for producing unsymmetrically substituted biphenyls |
| 12/16/1998 | CN1201785A Process for production of acrylonitrile |
| 12/16/1998 | CN1201784A Acrylonitrile absorbing tower |
| 12/16/1998 | CN1201783A Fluid bed reactor for ammoxidation of hydrocarbons |
| 12/16/1998 | CN1041198C Method for synthesizing 5-[1-hydroxy-2-(isopropylamino) ethyl] aminobenzonitrile |
| 12/10/1998 | WO1998055217A1 A fluidized bed reactor for the ammoxidation of hydrocarbons |
| 12/09/1998 | EP0882012A1 Method for synthesis of an aromatic derivative substituted by a halogen atom other than fluorine and by a cyano group |
| 12/09/1998 | EP0777639B1 Process for preparing aromatic aldehydes |
| 12/08/1998 | US5847231 Selective nitration of phenol derivatives |
| 12/08/1998 | US5847191 Process for the hydrocyanation of monoolefins using bidentate phosphite ligands and zero-valent nickel |
| 12/08/1998 | US5847166 Synthesis of aryl ethers |
| 12/02/1998 | EP0881212A1 Production method of aminobenzene compound |
| 12/02/1998 | EP0881210A1 Process for the production of N,N-dialkylaminophenyl alkanols |
| 12/02/1998 | EP0880497A1 Racemisation of quaternary chiral centers |
| 12/01/1998 | US5844114 Method for the selective hydrogenation of a dinitrile compound |
| 12/01/1998 | US5844112 Method for the preparation of (meth)acrylonitriles |
| 11/24/1998 | US5840956 Intermediate for anticonvulsant |
| 11/24/1998 | US5840955 Waste minimization and product recovery process |
| 11/24/1998 | US5840648 Mixed oxide catalyt containing iron, bismuth, molybdenum, an alkali metal, one of calcium, strontium or barium and others; ammoxidation |
| 11/19/1998 | WO1998034584A3 Compounds and method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids |
| 11/18/1998 | EP0878464A1 PROCESS FOR PRODUCING $g(a).$g(b)-UNSATURATED NITRILE |
| 11/12/1998 | WO1998050344A1 Substituted 3,3-diamino-2-propenenitriles, their preparation and use |
| 11/12/1998 | CA2289099A1 Substituted 3,3-diamino-2-propenenitriles, their preparation and use |
| 11/11/1998 | EP0876210A1 Method for preparing ammoxidation catalysts for a fluidised-bed or moving-bed reactor |
| 11/11/1998 | EP0778832B1 Process for producing quaternary glycine nitriles |
| 11/11/1998 | EP0717729B1 Cis-dihydroxycyclohexadienes and their preparation |
| 11/11/1998 | CN1040642C Vacuum rectification for purifying acetone cyanhydrin |
| 11/10/1998 | US5834618 Chemical intermediate for protease inhibitor drug |
| 11/10/1998 | US5834617 Selective dimerization of pentenenitrile |
| 11/10/1998 | US5834616 Reacting 2-methylglutarimide, ethylsuccinimide, and precursors thereof in vapor phase in the presence of acid catalyst |
| 11/10/1998 | US5834394 Fluidized-bed catalyst for propylene ammoxidation to acrylonitrile |
| 11/10/1998 | US5834392 Nitrile selective adsorbent |
| 11/05/1998 | WO1998049128A1 Process for preparing a (hetero)aromatic olefin |
| 11/04/1998 | CN1198151A Ethylenically unsaturated organic compound hydrocyanation method |
| 11/04/1998 | CN1198145A Method for preparing ammoxidation catalysts |
| 11/03/1998 | US5831135 Catalyst selectivity; purity |
| 11/03/1998 | US5831119 Process for the preparation of aminoacetic acids with a tertiary hydrocarbon radical in the α-position, or their nitriles |
| 11/03/1998 | US5831093 Preparation of n-aryl- and n-hetarylhydroxylamines |
| 11/03/1998 | US5830966 Cyclopolymerization monomers and polymers |
| 10/29/1998 | WO1998047862A1 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof |
| 10/29/1998 | DE19717231A1 3-Cyano-2,4,5-trifluor-benzoylfluorid 3-cyano-2,4,5-trifluoro-benzoyl fluoride |
| 10/28/1998 | EP0873788A2 An azo compound as a catalyst for formation of a carbon-carbon bond and a method for the formation of such a bond |
| 10/28/1998 | EP0873306A1 Improved process for hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 10/28/1998 | EP0873298A1 Chiral reductions of imines leading to the syntheses of optically active amines |
| 10/28/1998 | EP0703891B1 Process for producing an omega-functionalized aliphatic carboxylic acid |
| 10/28/1998 | CN1196973A Process for preparation of antimonate catalysts for (AMM) oxidation of alkanes and alkenes |
| 10/27/1998 | US5827938 Preparation of amines and aminonitriles |