Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
03/2000
03/02/2000CA2340738A1 Substituted cinnamic acids and cinnamic acid esters
03/01/2000EP0982299A1 Tetraalkylfluoroformamidinium trifluoroacetate and its use as trifluoroacetoxylation agent
03/01/2000EP0982286A2 Diene compounds and process for preparing the same
03/01/2000EP0944575A4 Esterification of fermentation-derived acids via pervaporation
03/01/2000CN1246142A Purifying polyunsaturated fatty acid glycerides
03/01/2000CN1246122A Purification of polyol fatty acid polyesters using mixing vessel with controlled mixing
03/01/2000CN1246106A Functionalized oligomer mixture derived from cyclopentene, method for production and use thereof
03/01/2000CN1245796A Tetraalkylfluoroformamidine trifluoroacetate and its preparation method
03/01/2000CN1245794A Production method of ethyl acetate by means of condensation of acetaldehyde
03/01/2000CN1049889C Process for coproducing methyl dichloroacetate and mercaptoacetic acid
02/2000
02/29/2000US6031126 Rearranging a hydrazobenzene compound to form a diaminodiphenyl compound, diazotising, catalytic reacting with a styryl compound to form a distyryl-biphenyl fluorescent whitening agent
02/29/2000US6031125 Catalytic esterification of a hydroxy aldehyde in presence of the magnesium salt of an alkanoic acid, or mixtures of such acids, in liquid solution, in the absence of solid magnesium or magnesium oxide
02/29/2000US6031103 Process for manufacturing 1-[3-cyclopentyl -2(R)-[1(R)-hydroxycarbamoyl)-2-(3, 4, 4-trimethyl -2, 5-D ioxo-1-imidazolidinyl) ethyl] propionyl] piperidine
02/29/2000US6030993 2-hydroxypropionic acid derivative and its manufacturing method
02/29/2000US6030990 N-benzyldioxothiazolidylbenzamide derivatives and process for producing the same
02/29/2000US6030505 Process for the continuous preparation of pure 5-formyl valeric acid esters
02/24/2000WO2000009469A1 Method for producing atropic acid ethyl ester
02/24/2000WO2000009463A1 Stereoselective ring opening reactions
02/24/2000DE19836788A1 Recovery of pure, water-insoluble alpha,beta-ethylenically unsaturated carboxylic acid esters is carried out in a single step by means of an aqueous base.
02/24/2000CA2339618A1 Stereoselective ring opening reactions
02/23/2000EP0980437A1 HMG-CoA REDUCTASE INHIBITOR PREPARATION PROCESS
02/23/2000EP0980350A2 Hydroxynaphthoic acids and derivatives
02/23/2000EP0980349A1 Conjugated linolenic acid-based synthetic triglycerides
02/22/2000US6028215 Process for preparing esters of carboxylic acids
02/22/2000US6028211 Composition and method for reducing fouling in process equipment used for manufacturing aromatic materials
02/22/2000CA1340902C Amino acid derivative anticonvulsant
02/17/2000WO2000008011A1 Process for the preparation of optically active 2-[6-(hydroxymethyl)-1,3-dioxan-4-yl]acetic acid derivatives
02/17/2000WO2000007973A1 Method for producing sorbic acid and sorbic acid esters or derivatives thereof
02/17/2000WO2000007966A1 Transition metal complexes as linkers
02/17/2000WO2000007727A1 Method for producing supported catalysts and their use for producing vinyl acetate monomer
02/17/2000DE19836222A1 Pure ethyl atropate preparation from pure ethyl phenyl-acetate and paraformaldehyde in N-methylpyrrolidone or dimethyl formamide, used as intermediates for drugs, especially tilidine
02/17/2000DE19835783A1 Verfahren zur Herstellung von Sorbinsäure und Sorbinsäureestern oder deren Derivaten A process for producing sorbic acid and sorbic acid esters or derivatives thereof
02/17/2000CA2339736A1 Method for producing sorbic acid and sorbic acid esters or derivatives thereof
02/17/2000CA2338961A1 Process for producing supported catalysts and their use for preparing vinyl acetate monomer
02/16/2000EP0979806A1 Process for selective enrichment and separation of aroma molecules by adsorption
02/16/2000EP0979248A1 Purification of by-product stream in preparation of polytrimethylene terephthalate
02/16/2000EP0979220A1 SINGLE-STAGE METHOD FOR PRODUCING $g(a)-HYDROXY ETHERS BY OXIDIZING C=C-UNSATURATED COMPOUNDS WITH HYDROPEROXIDES
02/16/2000EP0825977B1 Carboxylic acid derivative preparation process
02/16/2000EP0784605B1 Selective process for the deacylation of acylated compounds
02/16/2000CN1244855A Polymerizable biaryls, method for the production and use thereof
02/16/2000CN1244520A Synthesis of isotridecyl fatty ester
02/16/2000CN1244445A Moulded material based on silicon dioxide
02/16/2000CN1049425C Preparation of tricetate glyceride
02/15/2000US6025521 Telomerization process for telomerizing ethylenic monomer compounds
02/15/2000US6025520 Method for preparing (meth)acrylic acid ester
02/15/2000US6025519 Process for preparing cyclobutane-1,2-dicarboxylic esters
02/15/2000US6025503 Process for producing optically active titanium alkoxide complexes
02/15/2000US6025295 Supported catalysts
02/15/2000CA2164912C Process for recovering the light noble products present in the distillation residues of processes used to prepare acrylic acid and its esters
02/11/2000CA2280221A1 Process for the production of vinyl acetate
02/10/2000WO2000006532A2 Process for the preparation of r-(-)-carnitine
02/10/2000WO2000006530A1 A process for producing terephthalic acid and/or dimethyl terephthalate
02/10/2000DE19835657A1 Recovery of monomers from polyesters involves depolymerization in a monovalent alcohol
02/10/2000DE19835542A1 Verfahren zur selektiven Anreicherung und Trennung aromawirksamer Moleküle durch Adsorption Process for the selective enrichment and separation aroma active molecules by adsorption
02/10/2000DE19835358A1 Synthese von o-(p-Tolyl)benzoesäure-tert.-butylester durch Umsetzung von o-(p-Tolyl)benzoesäure mit Isobutylen unter Säurekatalyse Synthesis of o- (p-tolyl) benzoic acid tert-butyl ester by reaction of o- (p-tolyl) benzoic acid with isobutylene under acid catalysis
02/10/2000CA2338656A1 A process for producing terephthalic acid and/or dimethyl terephthalate
02/09/2000EP0978503A1 Synthesis of t-butyl o-(p-tolyl)benzoate by reaction of o-(p-tolyl)benzoic acid with isobutene using acid catalysis
02/09/2000EP0978502A1 Process for the transesterification of alpha-ketocarboxylic acids
02/09/2000EP0977822A1 Method for producing polymerizable liquid crystal compounds
02/09/2000EP0977628A1 Carbonylation catalyst system
02/09/2000CN1244189A Process for the esterification of (meth) acrylic acid with an alkanol
02/09/2000CN1244188A Production of fatty acid methyl esters and soap therefrom
02/09/2000CN1243821A Compounds containing fluorine carboxylic acid, their production and chemical uses
02/08/2000US6022990 Directly from acetylene and methyl formate in the presence of a specific catalyst system
02/08/2000US6022823 Process for the production of supported palladium-gold catalysts
02/08/2000US6022822 Organotin compound and catalyst for transesterification comprising the same
02/08/2000CA2202546C Transesterification reaction of alkoxylated bisphenol-a and methyl methacrylate
02/07/2000CA2279783A1 Process for transesterifying .alpha.-ketocarboxylic esters
02/06/2000CA2279755A1 Method for the selective concentration and separation of aroma molecules by adsorption
02/03/2000WO2000005402A1 Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
02/03/2000WO2000005401A1 Continuous process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone
02/03/2000WO2000005400A1 Process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
02/03/2000WO2000005399A1 Process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone
02/03/2000WO2000005398A1 Process for preparing alpha-(1,4) linked oligosaccharide
02/03/2000WO2000005317A1 Dimer and trimer esters from epoxidized compounds
02/03/2000WO2000005185A1 Method of microwave bond cleavage of a hydrocarbon compound in a liquid phase
02/03/2000DE19834569A1 Verfahren zur Herstellung von Trägerkatalysatoren sowie deren Verwendung für die Herstellung von Vinylacetatmonomer A process for the preparation of supported catalysts and to their use for the production of vinyl acetate monomer
02/03/2000DE19834360A1 Verfahren zur Herstellung von Estern der (Meth)acrylsäure A process for the preparation of esters of (meth) acrylic acid
02/03/2000CA2338757A1 Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
02/03/2000CA2338756A1 Continuous process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone
02/03/2000CA2338755A1 Process for preparing alpha-(1,4) linked oligosaccharide
02/03/2000CA2338752A1 Process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
02/03/2000CA2338527A1 Process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone
02/03/2000CA2338428A1 Method of microwave bond cleavage of a hydrocarbon compound in a liquid phase
02/02/2000EP0976716A1 Process for the preparation of esters of (meth)acrylic acid
02/02/2000EP0976715A1 Process for the codimerisation of dienic fatty compounds and olefines catalysed by nickel complexes
02/02/2000EP0976714A1 Addition of ketones to alkenes
02/02/2000EP0976713A1 Preparation process of catalyst for producing alkenyl acetates and catalyst prepared by this process
02/02/2000EP0976712A1 Fluorine-containing carboxylic acid compounds, methods for their production, and chemical processes utilizing the same
02/02/2000EP0976702A1 Method for inhibiting polymerization of a vinyl compound
02/02/2000EP0975577A1 Photocurable halofluorinated acrylates
02/02/2000EP0975576A1 A process for the preparation of methacrylate esters
02/02/2000EP0975575A1 Method for producing 2-alkynoic acid esters
02/02/2000EP0975574A1 Process to prepare a pentenoic acid derivative
02/02/2000EP0975421A2 Preparation of low-dust stabilisers
02/02/2000EP0730485B1 Process for the simplified separation of complex mixtures at least partially of organic origin
02/02/2000EP0674516B1 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds
02/02/2000CN1243118A Separation method for coarse liquid acetic acid ethyenyl ester
02/02/2000CN1243115A Polymerization inhibiting method for ethenyl chemical compound
02/02/2000CN1243038A Catalyst for preparing acetic acid ethyenyl ester and use of same