Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
03/1991
03/26/1991CA1282077C Process for producing substituted-phenethylamine derivatives
03/26/1991CA1282075C Process for preparing hexenedioate esters
03/26/1991CA1282074C Process for the preparation of mercaptomethylphenols
03/26/1991CA1282070C Biologically active amide derivatives
03/26/1991CA1281995C Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases
03/26/1991CA1281853C Agent for the protection of materials
03/21/1991WO1991003456A2 Process for preparing salt-free esters of fatty acids with oligoglycerins or with addition reaction products of ethylene oxide and/or propylene oxide with oligoglycerins
03/21/1991DE3930026A1 Mono-glyceride extraction from glyceride mixts.
03/20/1991EP0417867A1 Catalysts for the catalysed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters
03/20/1991EP0417597A2 Method for the production of 2-formylbutyric acid methyl ester
03/20/1991EP0417187A1 Ruthenium-catalyzed production of cyclic sulfates
03/20/1991EP0299026B1 Process for the co-production of aromatic carboxylates and alkyl iodides
03/20/1991CN1049982A Improved boron phosphate catalyst for production of dienes from aldehydes
03/20/1991CN1012063B Hydroformylation of olefins
03/19/1991US5001289 Shaped zeolite catalyst for liquid phase organic reactions
03/19/1991US5001286 Process for separating sulphuric acid and nitric acid from dinitrotoluene mixtures obtained during the nitration of toluene
03/19/1991US5001285 Process for the bromination of nitro-alcohols
03/19/1991US5001273 Method for preparing asymmetric aliphatic ketones
03/19/1991US5001262 Method for synthesizing an aromatic hydrazine compound
03/19/1991US5001261 Cyclohexenone derivatives and their use for controlling undesirable plant growth
03/19/1991US5001260 Tetracarboxylic acids
03/19/1991US5001258 Antibiotic, fumifungin, a microbial process for the preparation thereof, and the use thereof as a pharmaceutical
03/19/1991US5001257 Preparation of 4-pentenoic acid, amide or esters by isomerization
03/19/1991US5001209 Non-linear optical active diols and polyurethanes prepared therefrom
03/19/1991US5001159 N-aminobutyl-n-phenylarylamide compounds and their application in therapy
03/19/1991US5001156 Lipophilic quaternary ammonium salicylates, their use in cosmetics and in dermopharmacy
03/19/1991US5001153 Ocular hypotensive agents
03/19/1991US5001102 Heterogeneous catalysts
03/19/1991US5000961 Tert-butyl derivatives of benzylidenecamphor, process for preparing them, their use as antioxidant agents and cosmetic and pharmaceutical compositions containing them
03/19/1991CA1281844C Stabilized vinyl halide resin and compositions and articles made therefrom
03/19/1991CA1281746C Direct catalytic alkylation of mononuclear aromatics with lower alkanes
03/19/1991CA1281745C Recovery of ethylene, chlorine and hc1 from vented waste gas from direct chlorination reactor
03/19/1991CA1281741C Phenylbenzoylureas
03/19/1991CA1281740C Resin treatment of hexitol esters
03/19/1991CA1281739C Method to convert primary alkanols to their corresponding esters
03/19/1991CA1281738C Process for the preparation of acyloxybenzenesulfonic acids and salts thereof
03/19/1991CA1281735C Diphenyl ether derivatives, their preparation and their use for controlling undesirable plant growth
03/19/1991CA1281734C Process for the production of oligoesters containing hydroxy groups and their use
03/19/1991CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines
03/19/1991CA1281704C Transition metal complex catalyzed processes
03/16/1991CA2024915A1 Process for the preparation of methyl 2-formylbutyrate
03/15/1991WO1991014670A1 Process for producing branched fatty acids and their esters
03/13/1991EP0416946A2 Optically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same
03/13/1991EP0416822A2 Stain-resistant plasticizer compositions and method of making same
03/13/1991EP0416661A2 Method for the production of pure monoglycerides, pure diglycerides and/or triglycerides
03/13/1991EP0416069A1 New leucotriene b 4 derivatives, a method of preparing them, and their use as drugs.
03/13/1991EP0415982A1 Method of preparing aromatic ethers from iodoaromatic compounds.
03/13/1991EP0334951A4 High yield method for preparation of dialkyl esters of polyhaloaromatic acids
03/13/1991EP0289509B1 Basic metal salts having improved color and stability and vinyl halide polymers containing same
03/13/1991CN1011966B Catalytic system for production of aromatics form aliphatic hydrocarbons
03/12/1991WO1991003457A1 Process for the production of esters exhibiting nonlinear optical response
03/12/1991US4999454 Catalysis with iron hydrate compound; reacting chloral with unsaturated hdyrocarbon
03/12/1991US4999453 Converting an Alkylenedicarboxylic Ester Over an Acidic Heterogeneous Catalyst
03/12/1991US4999452 Minimization of refining steps, removal of formaldehyde
03/12/1991US4999450 Process for preparing alpha-(3-benzylphenyl) propionic acid derivative
03/12/1991US4999443 Transition metal complexes
03/12/1991US4999441 Tetrakis(dialkylamino)aromatics and their charge transfer complexes
03/12/1991US4999435 Cationic Surfactants, Drugs, Immunoassay
03/12/1991US4999392 Light, Heat and Oxidation Stabilizers for Polymers
03/12/1991US4999363 Tricyclic compounds
03/12/1991US4999042 Phenyl oximino-acetate fungicides
03/12/1991CA2066211A1 Process for the production of esters exhibiting nonlinear optical response
03/12/1991CA1281500C2 Bifunctional chelating agents
03/12/1991CA1281499C2 Bifunctional chelating agents
03/12/1991CA1281338C Colourless ketimines, their preparation and their use as cross-linking agent
03/12/1991CA1281336C Method of preparing acetal or ketal
03/12/1991CA1281332C Insecticidal n'-substituted-n,n'-diacylhydrazines
03/12/1991CA1281331C Thio-substituted aromatic alcohols
03/12/1991CA1281324C Lipid derivatives, their production and use
03/12/1991CA1281306C Process for the fluorination in liquid phase of unsaturated compounds
03/07/1991DE3928397A1 Verfahren zur herstellung von salzfreien estern von fettsaeuren mit oligoglycerinen bzw. mit anlagerungsprodukten von ethylenoxid und/oder propylenoxid an oligoglycerine Process for the preparation of salt-free esters of fatty acids with oligoglycerols or with plant-addition products of ethylene oxide and / or propylene oxide to oligoglycerols
03/06/1991EP0415235A2 Process for carefully esterification of a carboxylic acid with an alcohol component
03/06/1991EP0415220A2 Chiral doping agents for liquid crystals
03/06/1991EP0415214A2 Method for the production of derivatives of alpha-fluoroacrylic acid
03/06/1991EP0415212A1 Aryloxynaphthalene derivatives
03/06/1991EP0311619B1 Chelate ligands for low pressure hydroformylation catalyst and process employing same
03/06/1991EP0276329B1 2,3-diaminoacrylonitrile derivatives
03/06/1991EP0261160B1 Alicyclic compounds
03/06/1991EP0219553B1 Process for preparing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers
03/06/1991CN1049650A Process for prepn. of terpenes
03/05/1991US4997989 Chemical intermediates for fungicides
03/05/1991US4997978 Preparation of alkyl carboxylates by hydrocarbonylation
03/05/1991US4997977 Process for the production of esters exhibiting nonlinear optical response
03/05/1991US4997958 Process for producing ascorbic acid 6-esters
03/05/1991US4997955 Preparation of 1,1-disubstituted ethylene compounds
03/05/1991US4997954 Reductive cyclizatin, dehalogenation, amination
03/05/1991US4997802 Catalyst for preparation of hydrocarbons
03/05/1991US4997535 From methane, sulfur dioxide and chlorine
03/05/1991CA1281039C Process for the preparation of decabromodiphenyl ether
03/05/1991CA1281038C Method for preparing organic esters from halocarbons
03/05/1991CA1281037C Process for producing n,o-diacetyl-6-amino-2-naphthol
03/05/1991CA1281035C Methyl methacrylate production
03/05/1991CA1281033C Cyclohexenone derivatives, their manufacture and their use for controlling undesirable plant growth
03/05/1991CA1281032C Process for the preparation of benzylidene compounds
03/05/1991CA1281029C Optically active ketals, processes for their preparation and their use in the synthesis of ó-arylakanoic acids
02/1991
02/27/1991EP0414453A1 Optically active cyclopentenols and process for preparing the same
02/27/1991EP0414384A2 Process for preparing neoalkyl triol triesters
02/27/1991EP0414207A2 Method for preparing alpha-(-4-isobutylphenyl) propionic acid or its precursor
02/27/1991EP0414106A2 Process for the preparation of terpenes
02/27/1991EP0414059A1 Dihalogenovinylbenzylesters, process and starting material for their preparation and their utilization for the control of parasites
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