| Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307) |
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| 04/03/1991 | EP0420658A2 A catalyst for asymmetric induction |
| 04/03/1991 | EP0420455A2 Method for ammoxidation of paraffins |
| 04/02/1991 | US5004822 Insecticides |
| 03/30/1991 | CA2025357A1 Catalyst for asymmetric induction |
| 03/27/1991 | EP0418933A1 Derivatives of alcadienes, their preparations and medicinal compositions containing them and intermediates |
| 03/26/1991 | US5003099 Nitrosation of cyanoacetic acid ester; catalytic hydrogenation, ammoniation |
| 03/26/1991 | US5003083 Process for preparing optically active cyano compound |
| 03/26/1991 | US5002694 Liquid crystals with ferroelectric properties |
| 03/26/1991 | US5002692 Amide liquid crystal compounds: mixtures and devices using them |
| 03/26/1991 | US5002639 Separation of ortho-, meta- and para-tolunitrile from ternary mixtures of the isomers |
| 03/26/1991 | CA1282070C Biologically active amide derivatives |
| 03/20/1991 | EP0417691A2 Process for the preparation of halophthalic anhydrides |
| 03/20/1991 | EP0417690A2 Aromatization process |
| 03/20/1991 | EP0417325A1 Process for producing norcamphanedicarbonitriles |
| 03/19/1991 | CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines |
| 03/12/1991 | US4999381 Fungicides |
| 03/12/1991 | US4999377 2-(2-hydroxy-3-phenoxypropylamino)ethylphenoxyacetamide compounds; dietetics |
| 03/12/1991 | US4999361 Cardiovascular disorders, blood vessel relaxants |
| 03/12/1991 | US4999130 Optically active compound, process for producing same and liquid crystal composition containing same |
| 03/12/1991 | CA2023724A1 Process for the preparation of halophthalic anhydrides |
| 03/12/1991 | CA2023720A1 Aromatization process |
| 03/12/1991 | CA1281332C Insecticidal n'-substituted-n,n'-diacylhydrazines |
| 03/06/1991 | EP0415585A1 Fluorobenzene derivatives |
| 03/06/1991 | EP0415220A2 Chiral doping agents for liquid crystals |
| 03/06/1991 | EP0261160B1 Alicyclic compounds |
| 03/05/1991 | US4997955 Preparation of 1,1-disubstituted ethylene compounds |
| 03/05/1991 | CA1281033C Cyclohexenone derivatives, their manufacture and their use for controlling undesirable plant growth |
| 03/05/1991 | CA1281032C Process for the preparation of benzylidene compounds |
| 02/27/1991 | EP0414275A2 Process for the preparation of cyclic aminoacid derivitives as well as the intermediate products |
| 02/27/1991 | EP0414116A2 Process for the separation of ortho-, meta- and para-tolunitrile from ternary mixtures of isomers |
| 02/26/1991 | US4996323 Reacting trichloroacetyl chloride and acrylonitirle, cyclization and aromatization |
| 02/26/1991 | US4996320 Thyroid inhibitors |
| 02/26/1991 | CA1280763C PROCESS FOR THE PREPARATION OF CERTAIN PAIRS OF ENANTIOMERS OF .alpha.-CYANO-3-PHENOXY-4-FLUOROBENZYL PERMETHRATE |
| 02/20/1991 | EP0413673A2 Process for the preparation of iminodiacetonitrile |
| 02/19/1991 | US4994619 Substituted cyclic ketones, substituted cyclic enones, and process for producing the same |
| 02/19/1991 | US4994615 Process for the preparation of optically active secondary arylamines |
| 02/19/1991 | CA1280441C Meta-substituted dioxa-alkane carboxylic acids, esters, amides and salts of diphenyl ethers |
| 02/19/1991 | CA1280430C Hydrogenation and reduction using the system hydrocarbon/carbon |
| 02/19/1991 | CA1280417C Fungicidal acrylates and preparation thereof |
| 02/12/1991 | US4992547 Aminoaryl ketone photoinitiators |
| 02/12/1991 | US4992518 Polymers obtained by heating allybicyclo[2.2.1]hept-5-ene-2-carboxylic acid amides for between 6 and 60 hours at 150°-300° C. |
| 02/12/1991 | CA1280121C Flow reactor system |
| 02/12/1991 | CA1280110C LIQUID CRYSTALLINE FERROELECTRIC DERIVATIVES OF BRANCHED ACYCLIC .alpha.-CHLOROCARBOXYLIC ACIDS |
| 02/07/1991 | WO1991001298A1 Process for the preparation of aromatic nitriles |
| 02/06/1991 | EP0411417A1 Process for preparing aminomethylene compounds |
| 02/05/1991 | US4990647 Catalytic coupling of two different halogenaromatics |
| 02/05/1991 | US4990645 Hydrocyanation process |
| 02/05/1991 | US4990634 Novel tetracyanoanthraquinodimethane derivatives and process for producing same |
| 02/05/1991 | US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use |
| 02/05/1991 | US4990632 Process for the production of oxides |
| 02/05/1991 | US4990176 Selective, tolerated by cultivated plants |
| 01/30/1991 | EP0410191A1 Fluorinated cyclohexane derivatives, process and intermediates for their preparation and use of the fluorinated cyclohexane derivatives as fungicide and intermediates |
| 01/30/1991 | EP0410172A2 2-Halogeno-3-phenoxy-1,4-naphthoquinone derivatives |
| 01/30/1991 | CN1048848A Substituted bycycloheptandione derivatives |
| 01/30/1991 | CN1048847A Process for preparing aromatic nitriles |
| 01/29/1991 | US4988827 Ether isonitriles and radiolabeled complexes thereof |
| 01/29/1991 | US4988382 Herbicides, plant growth regulators, imidazole derivatives, fungicides |
| 01/24/1991 | DE3923979A1 Verfahren zur herstellung von aromatischen nitrilen A process for preparing aromatic nitriles |
| 01/23/1991 | EP0409172A2 Process for dimerizing aromatic halogen compounds |
| 01/22/1991 | US4987147 Low toxicity |
| 01/22/1991 | US4986884 Purification, countercurrent vacuum distillation, feeding polymerization inhibitors to upper stage |
| 01/15/1991 | US4985581 Catalyst and process for producing aromatic nitriles |
| 01/09/1991 | EP0406661A1 Substituted 3-aminosydnonimines, process for their preparation, and their use |
| 01/08/1991 | US4983752 Ammoxidation of propylene using catalyst containing tellurium and one or more of iron, molybdenum and antimony in fluidized bed; regeneration during reaction by addition of oxidic tellur ium compounds |
| 01/05/1991 | WO1991000260A1 Substituted bicycloheptandione derivatives |
| 01/02/1991 | EP0405389A1 Process for producing an aromatic compound |
| 01/02/1991 | EP0405268A2 Process for the hydrogenation of olefines containing nitrile groups |
| 01/02/1991 | EP0144396B1 Polyhydroxybenzoic acid derivatives |
| 01/01/1991 | US4981993 Polyfunctional ethylenic monomers |
| 01/01/1991 | US4981990 Intermediates in the preparation of 4-phenylpyrrole derivatives |
| 01/01/1991 | US4981670 Hydrogen cyanide from acetonitrile, oxidation, ammoxidation |
| 12/31/1990 | CA2020216A1 Substituted 3-aminosydnone imines, processes for their preparation and their use |
| 12/27/1990 | EP0404529A1 Process for preparing iron-antimony-phosphorus-containing metal oxide catalysts for oxidation |
| 12/27/1990 | EP0403884A2 Dibrompropanol derivatives, process for their preparation and their use |
| 12/26/1990 | CN1048040A Ethanolamine derivatives |
| 12/26/1990 | CN1048017A Prodn. of cyanides by making use of hydroxy propanone cyanide as raw material instead of sodium (potassium) cyanide |
| 12/25/1990 | US4980495 Trialkylamine salts of 3-chloro-1,1-dicyano-2-hydroxy-1-propene and preparation of 2-amino-4-chloro-3-cyano-5-formylthiophene |
| 12/25/1990 | US4980493 Process for preparing benzonitriles |
| 12/20/1990 | CA2019174A1 Dibromopropanol derivatives, process for their preparation, and their use |
| 12/19/1990 | EP0402399A1 Control of product selectivity in the addition of hcn to arabinose. |
| 12/18/1990 | US4978769 Process for introducing fluorine atoms into aromatic rings by nucleophilic exchange |
| 12/18/1990 | US4978768 Reacting the ammonium salt with sodium or potassium hydroxide; reacting product with dialkyl sulfate or an alkyl |
| 12/18/1990 | US4978766 Reacting dialkoxypropanenitrile with carbon monocide in lower alcohol solution of alkali metal lower alkoxide |
| 12/18/1990 | US4978765 Catalyst of molybdenum, bismuth, iron, antimony, nickel, silica and alkali metal; friction resistance, nonabrasive |
| 12/18/1990 | US4978764 Reacting with oxygen and ammonia over metal oxide catalyst containing bismuth, iron and molybdenum on alumina support |
| 12/18/1990 | US4978386 Herbicidal 2-(substituted-phenyl)-3-amino-2-cyclopentenone derivatives |
| 12/12/1990 | EP0402063A2 Alpha-(omega-cyanoalkanoyl)-gamma-butyrolactone and method for producing the same |
| 12/12/1990 | EP0401946A2 Allyl esters of substituted phenylacetic acid and their use as pesticides |
| 12/12/1990 | EP0401798A2 Substituted aminoalkylbenzene derivatives |
| 12/11/1990 | US4977263 Process for preparing 1,8-bridged 4-quinolone-3-carboxylic acid antibacterials |
| 12/11/1990 | US4977148 Thermogenic stimulants for obesity or diabetes |
| 12/08/1990 | CA2016738A1 Substituted aminoalkylbenzene derivatives |
| 12/05/1990 | EP0401125A2 Biphenyl derivatives, process for preparing the same and intermediates therefor |
| 12/05/1990 | EP0400011A1 New phenylethanolamines. |
| 12/04/1990 | US4975462 Antiarthritic α-arylcarbamoyl cyanoacetic acid derivatives |
| 12/04/1990 | US4975435 Certain 1H-pyrrold[3,4-b]quinolin-1-one-9-amino-2,3-dihydro derivatives useful for treating anxiety |
| 12/02/1990 | CA2017897A1 Bephenyl derivatives, process for preparing the same and intermediates therefor |
| 11/28/1990 | EP0399504A2 Aryloxyphenylpropylamines their preparation and use |
| 11/28/1990 | CN1047282A Process for preparing acyl cyanides in anhydrous medium |
| 11/28/1990 | CN1047281A Improved process for preparation of 3,5,6-trichloropyridin-2-01 |