| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 10/03/2002 | US20020143214 Synthesis of non-C2-symmetric bisphosphine ligands as catalysts for asymmetric hydrogenation |
| 10/03/2002 | US20020143208 Useful for the vapor phase oxidation of an alkane or a mixture of alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of alkane and an alkene to an unsaturated nitrile |
| 10/03/2002 | US20020143131 Process for recovery of olefinically unsaturated nitriles |
| 10/02/2002 | EP1245553A2 Palladium-catalysed synthesis of aryl ethers |
| 10/02/2002 | EP1244613A2 Methods for producing cyanobenzoic acid derivatives |
| 10/02/2002 | EP1100768B1 Process for the preparation of r-(-)-carnitine |
| 10/02/2002 | EP1000021B1 Hydrocyanation of diolefins and isomerization of nonconjugated 2-alykl-3-monoalkenenitriles |
| 10/01/2002 | US6458742 A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, |
| 09/26/2002 | DE10113976A1 Production of (hetero)aromatic nitriles, e.g. for pharmaceutical synthesis, involves reacting aryl halide with cyanide in presence of palladium compound, chelating di- or amino-phosphane ligand and chelating diamine |
| 09/25/2002 | EP1243591A2 Synthesis of non-C2-symmetric bisphosphine ligands as catalysts for asymmetric hydrogenation |
| 09/25/2002 | EP1243578A1 Process for producing cyclopropanecarbonitrile |
| 09/25/2002 | EP1242353A1 Process for the recovery and recycle of d-tartaric acid |
| 09/25/2002 | EP0922027B1 Method for purifying lactams |
| 09/24/2002 | US6455724 Reacting dinitrile with hydrogen in presence of catalyst in ammonia and/or alcohol solvent containing azide compound |
| 09/24/2002 | US6455723 Reacting dinitrile with hydrogen in presence of catalyst in ammonia and/or alcohol solvent containing sulfur and/or selenium compound |
| 09/24/2002 | US6455515 Salicylohydrazide derivatives, processes and intermediates for their preparation, compositions comprising them, and their use |
| 09/24/2002 | US6455502 Compounds and compositions as protease inhibitors |
| 09/19/2002 | WO2002072511A1 'convenient and efficient suzuki-miyaura cross-coupling catalyzed by a palladium/diazabutadiene system' |
| 09/19/2002 | US20020133044 Promoted multi-metal oxide catalyst |
| 09/19/2002 | US20020132833 Caspase inhibitors and uses thereof |
| 09/18/2002 | EP1241528A2 Radical polymerizable compounds for image forming materials |
| 09/18/2002 | EP0988273B1 Polymerization inhibition of acrylates using blends of nitroxides |
| 09/18/2002 | CN1369480A Process for synthesizing 3- (or-4)-nitro o-phenylenedinitrile |
| 09/17/2002 | US6451730 Slurrying, heating, calcining; propylene or propane to acrylonitrile or methacrylonitrile |
| 09/17/2002 | CA2261832C Method for purifying lactams |
| 09/12/2002 | WO2002070465A1 Ammoxidation of a mixture of alcohols to a mixture of nitriles to acetonitrile and hcn |
| 09/12/2002 | WO2002070460A1 Halogen-substituted amino dicarboxylic acid derivatives as medicaments for treating cardiovascular diseases |
| 09/12/2002 | WO2002070459A1 Novel amino dicarboxylic acid derivatives |
| 09/12/2002 | WO2002049992A3 Process for preparing fluorinated organic compounds |
| 09/12/2002 | US20020128485 Processes for preparing pesticidal intermediates |
| 09/12/2002 | CA2439945A1 Novel halogen-substituted aminodicarboxylic acid derivatives |
| 09/12/2002 | CA2439939A1 Novel aminodicarboxylic acid derivatives |
| 09/11/2002 | EP1238967A1 A process for the preparation of 1-(cyano(aryl)methyl) cyclohexanol |
| 09/11/2002 | EP1238016A1 Substituted phthalocyanines and their precursors |
| 09/11/2002 | EP1237850A2 Glyoxyl acid amides |
| 09/11/2002 | EP1237638A2 Method and apparatus for purifying low grade acetonitrile and other constituents from hazardous waste |
| 09/11/2002 | EP0973729B1 A process for the preparation of 4-bromomethyl diphenyl compounds |
| 09/11/2002 | CN1368955A Process for preparing with via alpha-chloroepoxy esters |
| 09/11/2002 | CN1090667C Process for production of petrochemicals |
| 09/10/2002 | US6447649 Synergistic mixture of a quinone diimide and hydroquinone |
| 09/05/2002 | US20020123647 Recycle process |
| 09/05/2002 | DE10109859A1 Neuartige Aminodicarbonsäurederivate Novel Aminodicarbonsäurederivate |
| 09/05/2002 | DE10109858A1 Neuartige halogensubstituierte Aminodicarbonsäurederivate Novel halogen-substituted Aminodicarbonsäurederivate |
| 09/04/2002 | EP1235786A2 Method for the preparation of enantiomerically enriched compounds |
| 09/04/2002 | EP1169314B1 Crystalline base of citalopram |
| 09/04/2002 | EP0994849B1 Method for production of 2,4,5-trifluorobenzonitrile |
| 09/04/2002 | CN1367774A Method for preparing cyclohexane carboxylic acids |
| 09/04/2002 | CN1090177C Preparation of aromatic nitriles |
| 09/04/2002 | CN1090176C Purification of nitrile |
| 09/04/2002 | CN1090175C Improved acrylonitrile recovery process |
| 09/04/2002 | CN1090174C Improved process for hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 09/04/2002 | CN1090173C Concentration method of aqueous acrylamide solution |
| 09/03/2002 | US6444838 Chemical intermediates for insecticides, miticides |
| 08/29/2002 | WO2002066410A1 Preparation of mandelic acid derivatives |
| 08/29/2002 | US20020120168 Difluoromethyl ether derivative and process for producing the same |
| 08/29/2002 | US20020120164 Reacting cyclohexanone with the carbanions of an aryl acetonitrile using a base, isolating and purifying 1-(cyano(aryl)methyl) cyclohexanol compound by crystallization |
| 08/29/2002 | US20020120163 Process for producing cyclopropanecarbonitrile |
| 08/29/2002 | DE10107227A1 Verfahren zur Herstellung von 4-substituierten 2-Alkyl- und 2-Alkoxylbiphenylen A process for the preparation of 4-substituted 2-alkyl and 2-Alkoxylbiphenylen |
| 08/29/2002 | CA2438017A1 Preparation of mandelic acid derivatives |
| 08/28/2002 | CN1089752C Process for preparing aliphatic alpha, omega-aminonitriles |
| 08/28/2002 | CN1089751C Process for preparing aliphatic alpha, omega-aminonitriles |
| 08/27/2002 | US6441246 Using dehydration agent |
| 08/27/2002 | US6441238 Using n-aminopropyltoluenediamine |
| 08/27/2002 | US6440891 Of compounds containing at least one ethylenically unsaturated double bond; one bi- or more highly dentate phosphonite ligand wherein the phosphonite group is part of a from 5-to 8-membered heterocycle |
| 08/22/2002 | WO2002064602A1 Coordination compounds and their use for the polymerization of olefins |
| 08/22/2002 | WO2002064249A2 Compound suitable for use as a catalyst or for producing a catalyst system derived from a bis-phosphorinane |
| 08/22/2002 | US20020115880 Process for preparing 4-substituted 2-alkylbiphenyls and 2-alkoxylbiphenyls |
| 08/22/2002 | US20020115879 Molybdenum, vanadium, antimony, niobium, and other various metal oxides in specific atomic ratios |
| 08/22/2002 | CA2437602A1 Compound suitable for use as a catalyst or for producing a catalyst system derived from a bis-phosphorinane |
| 08/21/2002 | EP1233010A1 Method for production of organic fluorine compound |
| 08/21/2002 | EP1233009A2 Method for production of 4-substituted 2-alkylbiphenyls and 2-alcoxybiphenyls |
| 08/21/2002 | EP0934256B1 Process for the production of cyanocinnamamides |
| 08/20/2002 | US6437168 Fluorination; efficient extraction |
| 08/20/2002 | US6436373 Oligomeric diarylbutadienes |
| 08/20/2002 | CA2237033C Improved process for hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 08/15/2002 | WO2002042244A3 Synthesis of chiral intermediates useful in preparing pharmacologically active compounds |
| 08/14/2002 | EP1230021A1 Catalysts for the ammoxidation of alkanes |
| 08/14/2002 | DE10107043A1 Verfahren zur Polymerisation von Olefinen A process for the polymerization of olefins |
| 08/14/2002 | DE10106348A1 Als Katalysator oder zur Herstellung eines Katalysatorsystems geeignete Verbindung As a catalyst or for the preparation of a catalyst system suitable compound |
| 08/14/2002 | DE10104342A1 Verfahren zur Herstellung von optisch aktiven Cyanhydrinen A process for the preparation of optically active cyanohydrins |
| 08/14/2002 | CN1364155A N-Cyanomethyl amides as protease inhibitors |
| 08/14/2002 | CN1364154A Bis-styrylbiphenyl compounds |
| 08/13/2002 | US6433213 Process for the synthesis of 1,3-diols |
| 08/13/2002 | US6433212 Synthesis of new polynitriles from cycloaliphatic vicinal primary diamines |
| 08/13/2002 | US6433211 Process for producing cyanobenzoic acid derivatives |
| 08/13/2002 | US6433209 Alpha-substitution of unprotected β-amino ester compounds |
| 08/08/2002 | US20020107426 In presence of palladium catalyst; useful in producing chemical intermediates for pharmaceuticals, optical brightening agents and agrochemicals |
| 08/07/2002 | EP1229021A1 Synthesis of new polynitriles from cycloaliphatic vicinal primary diamines |
| 08/07/2002 | EP1228056A2 Method for the preparation of citalopram |
| 08/07/2002 | CN1362947A N-cyanomethylamides as protease inhibitors |
| 08/07/2002 | CN1362402A Ether amide production method |
| 08/06/2002 | US6429330 Process for producing carbocyclic nitriles |
| 08/06/2002 | US6428765 Hydrorefining catalysts used for reforming, aromatization, transalkylation, isomerization and dehydrogenation |
| 08/06/2002 | CA2059987C Purification of aminonitriles or diamines |
| 08/01/2002 | WO2002059079A1 Fragrance compounds |
| 08/01/2002 | US20020103401 Includes a step in which ortho-nitrotoluene is reacted with one or more acrylic acid derivatives such as acrylonitrile |
| 07/31/2002 | EP1227088A1 Crystalline base of citalopram and hydrochoride or hydrobromide salt thereof |
| 07/31/2002 | EP1226147A1 Phosphites |
| 07/31/2002 | EP1225978A1 Hydroformylation of unsaturated compounds using polymeric phosphite ligands |
| 07/31/2002 | EP0807622B1 Process for producing unsaturated nitriles |