Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
05/1998
05/12/1998US5750679 Process for obtaining pharmacologically active compounds from complex mixtures of substances
05/12/1998US5750382 Treating a trans-2-alkoxycyclohexanol with a hydrolase capable of esterifying stereospecifically the r-isomer in the presence of an acyl donor; no hydrolysis; separation from ester
05/12/1998US5750007 Process for the recovery of a carbonylation product
05/12/1998CA2218137A1 Catalyst and process for preparing 2-buten-1-ol compounds
05/12/1998CA2013743C Preparation of glutaric acid derivatives
05/12/1998CA1339862C Optically active cyclopropanecarboxamides
05/07/1998WO1998018553A1 Improved process for the production of supported palladium-gold catalysts
05/07/1998WO1998018329A1 Arthropodicides and process for their preparation
05/07/1998WO1998007809A3 HARD SURFACE CLEANERS COMPRISING β-KETOESTER PRO-FRAGRANCES
05/06/1998EP0840509A2 System and method for accessing data files in a computer network
05/06/1998EP0839794A1 Process for the continuous preparation of an alkyl 5-formylvalerate compound
05/06/1998EP0839793A1 Process for the production of vinyl acetate
05/06/1998EP0839792A1 Process for the production of intermediate for liquid crystal compound
05/06/1998EP0839787A1 Process for the preparation of an aldehyde
05/06/1998EP0839124A1 Process for the continuous carbonylation of olefins
05/06/1998EP0682670B1 Deoxygenation of cis vicinal diols
05/06/1998EP0674614B1 Novel liquid phenolic antioxidants
05/06/1998CN1181060A Alk(En)yl dicarboxylic acid bisesters, their use and method for preparing them
05/06/1998CN1181059A Recovery of dimethyl terephthalate from polymer mixture
05/06/1998CN1180695A Improved oxidation in Witten-Hercules process for preparing dimethyl terephthalate
05/06/1998CN1180694A Technology for preparing propylene-glycol ether acetate by reaction distillation
05/06/1998CN1180693A White, powder, non-hygroscopic fatty acyl lactate and its preparing method
05/06/1998CN1180692A Technology for preparing propylene-glycol monoalky lether carboxylic ester by catalytic distillation
05/05/1998US5747547 Depolymerizing polyethylene terephthalate in countercurrent flow reactor by reaction with superheated methanol; deesterification
05/05/1998CA2152588C Anti-androgenic cyclo and bicyclo alkenes
04/1998
04/30/1998WO1998017622A1 METHOD FOR PRODUCING α-ALKOXY-α-TRIFLUOROMETHYL-ARYL ACETIC ACID ESTERS AND -ARYL ACETIC ACIDS
04/30/1998WO1998017381A1 Method for carrying out reactions characterized by an equilibirum
04/30/1998CA2269133A1 Method for producing .alpha.-alkoxy-.alpha.-trifluoromethyl-aryl acetic acid esters and -aryl acetic acids
04/29/1998EP0837848A1 4-aryl-1-phenylalkyl-1,2,3,6-tetrahydropyridines having neurotrophic and neuroprotective activity
04/29/1998EP0724558B1 Process for the carbonylation of acetylenically unsaturated compounds
04/29/1998CN1180075A Method for preparing polyglycol ester abietate
04/29/1998CN1180067A Method for simultaneously-synthesizing hydroxy-acetic methylester and methoxyl acetic methylester
04/28/1998US5744648 Catalytic reduction of resorcinol compound
04/28/1998US5744637 Carboxylic acid accelerated formation of diesters
04/28/1998US5744636 Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst
04/28/1998US5744635 Preparation process for beta-alkoxy acrylic acid
04/28/1998US5744632 Process for crystallizing L-α-aspartyl-L-phenylalanine methyl ester
04/28/1998US5744628 Process for the preparation of esters of aromatic carboxylic acids
04/28/1998US5744435 Perfumes for laundry and cleaning compositions
04/28/1998US5744021 2-alkylmercapto-4-(trifluoromethyl)benzoic esters and a process for their preparation
04/28/1998CA2026504C Lubricant oil compositions
04/23/1998WO1998016495A1 Processes for the preparation of dicarboxylic acid monoesters
04/23/1998WO1998016494A1 A process for the preparation of vinylesters
04/23/1998WO1998016487A1 1s to 1r epimerizations of pyrethroid intermediates
04/23/1998DE19643592A1 Verfahren zur Herstellung von alpha-Alkoxy-alpha-trifluormethyl-arylessigsäureestern und -arylessigsäuren Arylacetic esters alpha-alkoxy-alpha-trifluoromethyl--arylessigsäuren and process for the preparation of
04/23/1998DE19643479A1 Production of polyethylene terephthalate from waste PET
04/23/1998DE19643165A1 Verfahren zur Durchführung von durch ein Gleichgewicht gekennzeichneten Reaktionen Process for carrying out reactions characterized by an equilibrium
04/23/1998CA2268275A1 A process for the preparation of vinylesters
04/22/1998EP0837049A1 A process for preparing monomers
04/22/1998EP0741686B1 New leukotriene b4 derivatives, methods of preparing them and their use as drugs
04/22/1998EP0719246B1 Synthesis of vinyl esters
04/22/1998CN1179414A Catalyst for decarbonylation reaction
04/21/1998US5741925 Transvinylation of naphthenic acids
04/21/1998US5741922 Coupling agent; surface treatment of magnetic material; heat and oxidation resistance; waterproofing
04/21/1998US5741438 Optically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as an effective component, and liquid crystal element using the same
04/17/1998CA2217420A1 A process for preparing monomers
04/16/1998WO1998015520A1 Method for purifying pyruvic acid compounds
04/16/1998WO1998015519A2 A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof
04/16/1998CA2218216A1 Solid catalyst and process for producing unsaturated glycol diester using the same
04/15/1998EP0835862A1 Partial esters of polyglycerine with fatty acids and polyfunctional carbonylic acids, their preparation and use
04/15/1998EP0835861A1 Oxidation in the Witten-Hercules process for the preparation of dimethyl terephthalat
04/15/1998EP0835860A1 Separation of water from reactive mixtures
04/15/1998EP0835859A1 Process for producing valproic acid
04/15/1998EP0713485B1 Thiocarbamoyl compounds as microbicides
04/15/1998EP0710224B1 Process for the carbonylation of acetylenically unsaturated compounds
04/15/1998EP0675868B1 Process for preparing aryl-substituted aliphatic carboxylic acids and their alkyl esters
04/15/1998EP0666838B1 Process for the preparation of carboxylic acids and esters thereof by oxidative cleavage of unsaturated fatty acids and esters thereof
04/15/1998CN1179148A Reagent, compound and method for nucleophile perfluoroalkylation, and resulting derivatives
04/15/1998CN1179145A Method of producing 3 -pentenic acid esters by carbonylation of alkoxybutenes
04/14/1998US5739394 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives
04/14/1998US5739380 Used for coating; tack-free, hard, water and dirt repellent, aging and hydrolysis resistance
04/14/1998US5739379 Process for producing methyl methacrylate
04/14/1998US5739376 Fullerene derivatives, methods of preparing them and their use
04/14/1998US5739375 Reacting with dimethyl carbonate in presence of a base containing nitrogen for producing an antiinflammatory chemical intermediate
04/14/1998US5739347 Reducing agents for decarbonylation
04/14/1998US5739341 Liquid antioxidants as stabilizers
04/14/1998US5739144 Trisubstituted phenyl derivatives
04/14/1998US5739141 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds
04/09/1998WO1998014421A1 Method for esterifying carboxylic compounds
04/09/1998DE19712339C1 Preparation of 2'-substituted 4-bromo-methyl-bi:phenyl compounds
04/08/1998EP0834508A1 Substituted biphenyl or phenylpyridine derivatives, process for their preparation and pharmaceutical compositions containing them
04/08/1998EP0834497A1 Process for producing 2-(halomethyl)phenylacetic acid esters
04/08/1998EP0833811A1 A process for the preparation of esters
04/08/1998EP0703896B1 Low pressure process for the manufacture of cyclohexanedicarboxylate esters
04/08/1998CN1037962C Preparation of alkanedioic derivatives
04/07/1998US5736581 Polyglycerol polyricinoleates
04/07/1998US5736480 Sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl metal complex dissolved in glass supported film of nonaqueous polar solvent (i.e. ethylene glycol); catalyst selectivity, yield, simplified recovery
04/07/1998CA1339806C Liquid photoinitiator mixtures
04/07/1998CA1339804C Process for the preparation of acyl isocyanates
04/02/1998WO1998013512A1 A method for producing an extract from ganoderma lucidum containing ganoderic acid
04/02/1998WO1998013409A1 Process for preparing esterification products
04/01/1998EP0832873A1 Preparation of cyclopropane esters
04/01/1998EP0832087A1 Synthesis of and hydroformylation with fluoro-substituted bidentate phosphine ligands
04/01/1998CN1177595A Process for preparing chiral succinic acid derivatives
04/01/1998CN1177591A Process for refining ethyl acetate and butanone from mixed solution containing ethyl acetate and butanone
03/1998
03/31/1998US5734077 Antilipemic agents, anticholesterol agents, treatment of diabetes and atherosclerosis
03/31/1998US5734075 Process for recovery of the light noble products present in the distillation residues from the processes for the manufacture of acrylic acid and of its esters
03/31/1998US5734074 Continuous preparation of alkyl esters of (meth) acrylic acid
03/31/1998US5734071 Process for separating lipophilic compounds
03/31/1998US5734070 Hardening of unsaturated fats, fatty acids or fatty acid esters