| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 03/25/1998 | EP0831081A1 Production of aminophenols |
| 03/25/1998 | EP0830338A1 Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid |
| 03/25/1998 | CN1177344A Method for preparing alpha, beta-diaminoacrylnitriles |
| 03/24/1998 | US5731477 Without using chlorofluorocarbon gases |
| 03/24/1998 | CA2215007A1 Process for synthesizing benzoic acids |
| 03/19/1998 | WO1998011061A1 New intermediates for the preparation of verapamil derivates |
| 03/19/1998 | WO1998011060A1 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine |
| 03/19/1998 | WO1998011059A1 Process for the manufacture of aliphatic alpha, omega amino nitriles |
| 03/19/1998 | WO1998011058A1 Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles |
| 03/19/1998 | WO1998011051A1 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine |
| 03/19/1998 | CA2265472A1 Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine |
| 03/19/1998 | CA2263116A1 New intermediates for the preparation of verapamil derivatives |
| 03/19/1998 | CA2216043A1 Production of aminophenols |
| 03/18/1998 | EP0829010A1 Method to monitor and control chemical treatment of petroleum, petrochemical and processes with on-line quartz crystal microbalance sensors |
| 03/18/1998 | EP0828708A1 Process for producing 2-cyano-3,3-diary acrylic acid esters |
| 03/18/1998 | CN1176636A Process for producing acrylonitrile |
| 03/18/1998 | CN1037767C A process for reduction of waste material during manufacture of aerylonitrile |
| 03/17/1998 | CA1339745C Pesticidal benzoylurea compounds |
| 03/12/1998 | WO1998009945A1 Process for preparing 2-phenyl-3-naphthylpropionic acid derivatives |
| 03/12/1998 | WO1998009941A1 Method for preparing a cyanobiphenyl |
| 03/12/1998 | WO1998009940A1 Biphenyl butyric acids and their derivatives as inhibitors of matrix metalloproteinases |
| 03/12/1998 | DE19647527C1 Cyano compounds preparation |
| 03/12/1998 | DE19636768A1 Für die Herstellung von aliphatischen alpha, omega-Aminonitrilen durch partielle Hydrierung von aliphatischen Dinitrilen geeignete Katalysatoren For the preparation of aliphatic alpha, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles suitable catalysts |
| 03/12/1998 | DE19636767A1 Simple, economical production of aliphatic alpha,omega-amino-nitrile from di:nitrile with high selectivity |
| 03/12/1998 | DE19636766A1 Verfahren zur gleichzeitigen Herstellung von 6-Aminocapronitril und Hexamethylendiamin A process for the simultaneous preparation of 6-aminocapronitrile and hexamethylenediamine |
| 03/12/1998 | DE19636765A1 Verfahren zur gleichzeitigen Herstellung von 6-Aminocapronitril und Hexamethylendiamin A process for the simultaneous preparation of 6-aminocapronitrile and hexamethylenediamine |
| 03/12/1998 | CA2264933A1 Process for preparing 2-phenyl-3-naphthylpropionic acid derivatives |
| 03/11/1998 | EP0721448B1 Chiral nitriles, their preparation and their use for the manufacture of verapamil and analogues |
| 03/10/1998 | US5726343 Reaction of a boronic acid compound with a methoxyiminoacetic ester, insecticides, microbiocides |
| 03/10/1998 | US5726342 Process for producing α-(tert-Alkyl) cyanoacetic acid ester |
| 03/10/1998 | US5726334 Process for the preparation of ruthenium hydrogenation catalysts and products thereof |
| 03/05/1998 | WO1998008795A1 Benzonitrile and process for preparing benzyl alcohol |
| 03/04/1998 | EP0825978A1 Process for producing alpha,beta-unsaturated nitrile |
| 03/04/1998 | EP0825975A1 Process for the preparation of substituted aromatic amino compounds |
| 03/04/1998 | CN1174829A Selective nitration of phenol derivatives |
| 03/03/1998 | US5723641 Processes and catalyst compositions for hydrocyanation of monoolefins |
| 03/03/1998 | US5723621 Reaction of silylaromatic with aromatic compound to form biaryl compound |
| 03/03/1998 | US5723460 Potent and selective phosphodiesterase type iv inhibitors; useful in the prophylaxis and treatment of disease such as asthma where unwanted inflammatory response or muscular spasm is present |
| 02/26/1998 | DE19723214A1 Preparation of 4-nitro:phenol derivative pharmaceutical intermediates |
| 02/25/1998 | EP0825173A1 Method for preparing aromatic compounds |
| 02/25/1998 | CN1174546A Solventless process for making 2, 6 -difluorobenzonitrile |
| 02/25/1998 | CN1037509C Process for prep. of ortho-hydroxy substituted aromatic nitriles via dehydration of corresponding aldoximes |
| 02/22/1998 | CA2212958A1 Method for preparing aromatic compounds |
| 02/18/1998 | CN1173489A Purification of nitrile |
| 02/12/1998 | WO1998005636A1 Method for purifying lactams |
| 02/12/1998 | WO1998005632A1 Manufacturing process for 6-aminocapronitrile |
| 02/12/1998 | WO1998005631A1 Process for preparing 6-aminocapronitrile |
| 02/12/1998 | WO1998005630A1 Process for the preparation of organic nitriles |
| 02/12/1998 | CA2261817A1 Process for preparing 6-aminocapronitrile |
| 02/10/1998 | US5717037 Process for producing perfluoro unsaturated nitrile compounds |
| 02/05/1998 | WO1998004515A1 Process for producing amines and amino nitriles |
| 02/05/1998 | DE19631522A1 Verfahren zur Herstellung von 6-Aminocapronitril A process for the preparation of 6-aminocapronitrile |
| 02/05/1998 | DE19631521A1 Verfahren zur Herstellung von 6-Aminocapronitril A process for the preparation of 6-aminocapronitrile |
| 02/05/1998 | CA2261614A1 Process for producing amines and amino nitriles |
| 02/04/1998 | CN1172481A Process for preparation of 1 -(thiomethyl) -cyclopropaneacetic acid |
| 02/04/1998 | CN1172472A Process for producing unsaturated nitriles |
| 02/04/1998 | CN1172471A Process for producing acrylonitrile |
| 02/04/1998 | CN1172470A 2 -aryl -2 -alkyl -'omega' -alkylaminoalkane nitrile racemate separation process |
| 02/04/1998 | CN1172440A Fluidized-bed reactor and reaction process using the same |
| 01/29/1998 | WO1998003481A1 Process for preparing caprolactam from 6-aminocapronitrile |
| 01/29/1998 | CA2260805A1 Process for preparing caprolactam from 6-aminocapronitrile |
| 01/28/1998 | EP0703892B1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process |
| 01/28/1998 | CN1171779A Process for preparing aliphatic 'alpha', 'omega' -aminonitriles in gaseous phase |
| 01/28/1998 | CN1171778A Process for preparing aliphatic alpha, omega-aminonitriles |
| 01/28/1998 | CN1171777A Process for preparing aliphatic 'alpha' 'omega' -aminonitriles |
| 01/28/1998 | CN1171776A Process for preparing aliphatic alpha, omega-aminonitriles |
| 01/28/1998 | CN1171749A Method of producing hydrogenation catalyst |
| 01/28/1998 | CN1171395A Preparation of aromatic nitriles |
| 01/28/1998 | CN1037175C Novel halomethyl-benzoyl cyanides and preparing process thereof |
| 01/27/1998 | US5712414 Hydroxycarboxylic acid anilides |
| 01/27/1998 | US5712226 Optically active D-pyridyloxy phenoxy propionate herbicides |
| 01/21/1998 | CN1170715A Production process for aromatic compounds |
| 01/21/1998 | CN1170713A Concentration method of aqueous acrylamide solution |
| 01/21/1998 | CN1037099C Selective hydrogenation of dinitrile compound |
| 01/20/1998 | US5710344 Process to prepare a linear aldehyde |
| 01/20/1998 | US5710315 Depolymerization |
| 01/20/1998 | CA2116098C Asymmetric syntheses |
| 01/14/1998 | EP0818436A1 Process for the preparation of 4-hydroxyanilines |
| 01/14/1998 | EP0817788A1 Catalyst and process for preparing amides |
| 01/14/1998 | EP0658542B1 Process for producing alpha-hydroxyiminophenylacetonitrile |
| 01/14/1998 | CN1170403A Production of Rentene-nitriles |
| 01/07/1998 | EP0815073A1 Process for hydrocyanation in the presence of zero-valent nickel, a bidentate phosphorous compound and a lewis acid |
| 01/07/1998 | EP0658543B1 Process for producing alpha-alkoxyiminophenylacetonitrile derivative |
| 01/07/1998 | CN1169717A Method for partially hydrogenating dinitriles to aminonitriles |
| 01/07/1998 | CN1169715A Process for producing N-arylhydroxylamines and N-hetarylhydroxylamines |
| 01/06/1998 | US5705699 Catalytic hydrogenation of 3-cyano-3,5,5-trimethylcyclohexyl amine |
| 01/06/1998 | US5705680 Process for the preparation of O-acylglycolanilides |
| 01/06/1998 | US5705674 Process for preparing ortho-nitrobenzonitriles |
| 12/31/1997 | WO1997049652A1 Monomer recovery process for contaminated polymers |
| 12/31/1997 | CN1169143A Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |
| 12/31/1997 | CA2257230A1 Monomer recovery process for contaminated polymers |
| 12/30/1997 | US5703270 Method for preparing a vinyl compound having a hydroxy group |
| 12/30/1997 | US5703268 Acrylonitrile recovery process |
| 12/30/1997 | US5703267 Ester interchange with an organic acid |
| 12/30/1997 | US5703264 Process for producing aliphatic nitrile |
| 12/29/1997 | EP0814076A1 Purification of nitrile |
| 12/29/1997 | EP0813518A1 Process for preparing alpha,beta-diaminoacrylnitriles |
| 12/29/1997 | EP0720512B1 CATALYST BASED ON Fe, Co, Bi AND Mo OXIDES |
| 12/29/1997 | EP0711327B1 Aqueous dispersions containing cyclopolymer dispersants |
| 12/24/1997 | CN1168664A Catalyzed gas phase isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles |