| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 04/14/1999 | EP0908443A2 Process for the preparation of fluorinated aromatic compounds |
| 04/14/1999 | EP0908438A2 Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives |
| 04/14/1999 | CN1213585A Benzonitrile chlorination for preparing pentachlorobenzonitrile catalyst and its application |
| 04/14/1999 | CN1213584A Catalyst for catalytic oxidation use |
| 04/08/1999 | WO1999006146A3 Supported diols and supported bis(phosphorus) ligands |
| 04/07/1999 | EP0906783A1 Catalyst for catalytic oxidation use |
| 04/07/1999 | EP0906270A1 Process for producing hydroxyarenes |
| 04/07/1999 | EP0805797B1 Process for producing n-arylhydroxylamines and n-hetarylhydroxylamines |
| 04/07/1999 | CN1213367A Process for preparing unsaturated nitrile |
| 04/07/1999 | CN1213366A New processes for preparing pesticidal intermediates |
| 04/07/1999 | CN1213359A Process for preparing nitrobiphenylene |
| 04/06/1999 | US5892094 Process for preparing 4'-methyl-2-cyanobiphenyl |
| 04/06/1999 | US5892092 By dehydration of the corresponding oxime |
| 04/01/1999 | WO1999015603A1 Composition preventing polymerisation of ethylenically unsaturated monomers |
| 04/01/1999 | WO1999015497A1 Method for producing aliphatic alpha, omega-amino nitriles |
| 03/31/1999 | EP0905257A1 Process for preparing optically active 2-amino-Omega-oxoalkanoic acid derivatives |
| 03/31/1999 | EP0905109A1 Fluorination with aminosulfur trifluorides |
| 03/31/1999 | EP0812308A4 Method for synthesis of aryl difluoromethyl ethers and the like |
| 03/25/1999 | WO1999013983A1 Catalyst comprising at least one phosphonite ligand based nickel (o) complex and method for the production of nitriles |
| 03/25/1999 | DE19742221A1 Production of aliphatic alpha ,w-amino-nitrile compounds |
| 03/25/1999 | CA2303776A1 Catalyst comprising at least one phosphonite ligand based nickel (o) complex and method for the production of nitriles |
| 03/25/1999 | CA2247952A1 Process for preparing optically active 2-amino-w-oxoalkanoic acid derivatives |
| 03/24/1999 | EP0741693B1 Process for the preparation of arylacetic ester derivatives via palladium-catalyzed cross coupling reaction |
| 03/23/1999 | US5886210 Method for preparing aromatic compounds |
| 03/23/1999 | US5886044 IL-8 receptor antagonists |
| 03/23/1999 | US5885809 Method of producing (S)-cyanohydrins |
| 03/18/1999 | DE19740632A1 Tetrafluoro-benzene derivative preparation |
| 03/18/1999 | DE19740180A1 Nickel (0) phosphonite complex useful in production of organic nitriles |
| 03/18/1999 | CA2246116A1 Microwave synthesis of quinacridone intermediates |
| 03/17/1999 | EP0902012A2 Process for the preparation of aliphatic, unsaturated nitriles |
| 03/17/1999 | EP0902011A1 $g(g)-OXO-HOMOPHENYLALANINE DERIVATIVES AND PROCESS FOR PRODUCING HOMOPHENYLALANINE DERIVATIVES BY REDUCING THE SAME |
| 03/17/1999 | EP0901453A1 Method for organic reactions |
| 03/17/1999 | CN1210852A Process for producing nitrile |
| 03/16/1999 | US5883281 Ammoxidation with ammonia and oxygen |
| 03/16/1999 | CA2247231A1 Process for the preparation of 2,3,4,5,-tetrafluorobenzene derivates |
| 03/11/1999 | WO1999011607A1 Method for producing a 1-(3-cyclopentenyloxy- 4-alkoxyphenyl)-4- oxocyclohexanecarbonitrile |
| 03/11/1999 | WO1999011588A1 Method for producing compounds containing fluorine, in particular fluorobenzaldhydes and fluorobenzonitriles |
| 03/11/1999 | WO1999011368A1 Catalyst for the production of acrylonitrile |
| 03/11/1999 | DE19732693C1 Verfahren zur Herstellung von substituierten Benzylbromiden A process for preparing substituted benzyl bromides |
| 03/11/1999 | CA2302418A1 Process for preparing fluorine-containing compounds, in particular fluorobenzaldehydes and fluorobenzonitriles |
| 03/11/1999 | CA2302047A1 Method for producing a 1-(3-cyclopentenyloxy- 4-alkoxyphenyl)-4- oxocyclohexanecarbonitrile |
| 03/10/1999 | EP0900782A1 2-Cyanoacrylic acid esters |
| 03/10/1999 | EP0900592A1 Mo-Bi-Fe-Ca based catalyst for the manufacture of acrylonitrile and hydrogen cyanide |
| 03/10/1999 | CN1210033A Catalyst for production of acrylonitrile |
| 03/10/1999 | CN1210032A Production of propylene by ammoxidation of olefins |
| 03/09/1999 | US5880052 Removal of nitrile from hydrocarbon feedstock using adsorbent |
| 03/04/1999 | WO1999010315A2 Process for preparing 2-cyanoindan-1-ones |
| 03/04/1999 | WO1999010314A2 Method for producing long-chain glycine-n,n-diacetic acid derivatives |
| 03/04/1999 | DE19836359A1 Improved (meth)acrylonitrile production by gas phase ammoxidation in a flow bed reactor |
| 03/04/1999 | DE19738196A1 Verfahren zur Herstellung von Fluor enthaltenden Verbindungen in hoher Reinheit A process for producing fluorine-containing compounds in high purity |
| 03/04/1999 | DE19736921A1 Verfahren zur Herstellung von 2-Cyanoindan-1-onen A process for the preparation of 2-Cyanoindan-1-ones |
| 03/04/1999 | CA2301773A1 Process for preparing 2-cyanoindan-1-ones |
| 03/03/1999 | EP0899256A2 Method for production of organic fluorine compound |
| 03/02/1999 | US5877381 Oxidizing olefins, aldehydes, alcohols and hydrocarbons, ammoxidation, dehydrogenation and hydrogenation |
| 03/02/1999 | US5877344 Synergistic mixture |
| 03/02/1999 | US5877340 Catalytic hydrogenation of the corresponding nitro aromatic compound |
| 03/02/1999 | US5877330 Oxidation catalyst for oxidation of xylene/o-/ to give phthalic anhydride |
| 02/25/1999 | DE19736476A1 Glycine-N,N-diacetic acid derivative preparation in high yield |
| 02/24/1999 | CN1042222C Process for prepn. of cyclopentene, cyclopentane and cyclohexane derivatives |
| 02/23/1999 | US5874607 Coproduction of 6-aminocapronitrile and hexamethylenediamine |
| 02/23/1999 | US5874606 Reacting o-chlorobenzonitrile with a substituted phenylmagnesium halide in the presence of a nickel catalyst, an ethereal solvent, and n-methylpyrrolidinone as a cosolvent |
| 02/23/1999 | US5874044 Heat sterilization of cyanoacrylate |
| 02/18/1999 | WO1999007671A1 Method for producing mixtures of monoolefinic c5-mononitriles by catalytic hydrocyanation in the presence of a catalyst containing at least one metallocene phosphor (iii)-nickel-(0) complex |
| 02/18/1999 | CA2298585A1 Method for producing mixtures of monoolefinic c5-mononitriles by catalytic hydrocyanation in the presence of a catalyst containing at least one metallocene phosphor (iii)-nickel-(0) complex |
| 02/17/1999 | EP0896531A1 Il-8 receptor antagonists |
| 02/17/1999 | CN1208401A Process for producing 'alpha', 'beta'-unsaturated nitrile |
| 02/16/1999 | US5872267 Reacting a cyclohexanone or derivative with acrylic compound to form intermediate in basic environment, oxididation with hydrogen peroxide or organic peroxides in acid catalyst to form intermediate, hydrogenation or hydrolysis of the product |
| 02/11/1999 | WO1999006398A1 1,3-oxazolinyl-biphenyl derivatives, preparation method and use as synthesis intermediates |
| 02/11/1999 | WO1999006360A1 Method for preparing 3-cyano-2,4-dihalogen-5-fluor-benzoic acid |
| 02/11/1999 | WO1999006359A1 Improved hydrocyanation process |
| 02/11/1999 | WO1999006358A1 Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions therefor |
| 02/11/1999 | WO1999006357A1 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alykl-3-monoalkenenitriles |
| 02/11/1999 | WO1999006356A1 Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions therefor |
| 02/11/1999 | WO1999006355A1 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 02/11/1999 | WO1999006345A1 Improved process of preparation of linear aldehydes |
| 02/11/1999 | WO1999006339A1 Method for preparing substituted benzyl bromides |
| 02/11/1999 | WO1999006146A2 Supported diols and supported bis(phosphorus) ligands |
| 02/11/1999 | DE19835247A1 Catalyst for ammoxidation of propane or isobutane to (meth)acrylonitrile |
| 02/11/1999 | DE19733682A1 Verfahren zur Herstellung von Gemischen monoolefinischer C¶5¶-Mononitrile durch katalytische Hydrocyanierung in Gegenwart eines katalysators, umfassend wenigstens einen Metallocenphosphor(III)-Nickel(0)-Komplex A process for preparing mixtures of monoolefinic C¶5¶ mononitriles by catalytic hydrocyanation in the presence of a catalyst comprising at least one metallocene-phosphorus (III) -nickel (0) complex |
| 02/11/1999 | CA2291693A1 Improved process of preparation of linear aldehydes |
| 02/11/1999 | CA2291443A1 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 02/10/1999 | EP0895987A1 Highly pure alkyl 2-cyanoacrylates |
| 02/10/1999 | EP0895986A2 A process for producing a nitrile |
| 02/10/1999 | EP0895809A1 Niobium-containing aqueous solution for use in producing niobium-containing oxide catalyst |
| 02/10/1999 | EP0784610B1 Hydrocyanation process and multidentate phosphite and nickel catalyst composition therefor |
| 02/10/1999 | CN1207386A Improved acrylonitrile recovery process |
| 02/10/1999 | CN1207385A Purification of acetonitrile by distillative recovery/ion exchange resin treatment process |
| 02/09/1999 | US5869732 High purity; reacting one mole of pentaerythritol with 3 moles of acrylonitrile by michael addition reaction in an alkaline aqueous solution with an extraction solvent; useful in production of a high dielectric polymer |
| 02/09/1999 | US5869730 Oxidant reduction by manipulation and/or treatment of aqueous acrylonitrile process streams |
| 02/04/1999 | WO1999005098A1 Method for the production of n-(5-amino-2-cyano-4-fluoro-phenyl)-sulphonamides and new intermediate products |
| 02/04/1999 | DE19733243A1 Verfahren zur Herstellung von 3-Cyano-2,4-dihalogen-5-fluor-benzoesäure Process for the preparation of 3-cyano-2,4-dihalogeno-5-fluoro-benzoic acid |
| 02/03/1999 | CN1206708A Adding oxygen in acrylonitrile for reducing inert substance |
| 02/03/1999 | CN1206627A Preparation of alumen antimonate catalyst by using zinc dioxide hydrate |
| 02/02/1999 | US5866737 Redox catalyst |
| 02/02/1999 | US5866709 Process for making aromatic nitriles |
| 02/02/1999 | US5866708 Oxygen-containing gas, in a reactor at a high temperature in a gas phase over a fluidized bed |
| 02/02/1999 | US5866502 Process for the preparation of antimonate catalysts for (AMM) oxidation of alkanes and alkenes |
| 01/29/1999 | CA2243875A1 Method of making aromatic nitriles |
| 01/28/1999 | WO1999003825A1 Method for gas phase catalytic oxidation of hydrocarbon |
| 01/28/1999 | WO1999003802A1 Catalysed fluorination of carbonyl compounds |