Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
04/2001
04/18/2001CN1064671C Synthetic method for gamma-halogenated butyric ester
04/18/2001CA2323311A1 New process for the preparation of retiferol derivatives
04/17/2001US6219709 System and method for accessing data files in a computer network
04/17/2001US6218569 Polymerizable alicyclic esters and process producing the same
04/17/2001US6218567 Esterification of hydroxybenzoic acid with oxo alcohol in reaction mixture obtained from hydroformylation of olefins; solvent-free; acid catalysis
04/17/2001US6218555 Process for the preparation of alkanoyloxy-benzenesulfonic acids and salts thereof
04/17/2001CA2185192C Novel substituted 2,2,-dimethyl-w-phenoxyalcanoic acids and esters; process for preparing the same and pharmaceutical compositions containing them
04/12/2001WO2001025184A1 Transesterification polyols for polyurethane-prepolymers with specifically regulated viscosity
04/12/2001WO2001025183A1 Process for preparing carboxylic esters of optically active 1-perfluoroalkylated alcohols, optically active 1-perfluoroalkylated alcohols and process for the preparation thereof
04/12/2001WO2001025182A1 Process for producing mixed gas of lower olefin and lower aliphatic carboxylic acid, and process for producing lower aliphatic ester using the mixed gas
04/12/2001WO2001025173A1 Treatment of mixtures that contain at least one compound with at least one ethylenically unsaturated group
04/12/2001DE19947868A1 Verfahren der chemischen und/oder physikalischen Behandlung von Gemischen, die wenigstens eine chemische Verbindung mit wenigstens einer ethylenisch ungesättigten Gruppe enthalten Methods of chemical and / or physical treatment of mixtures which contain at least one chemical compound having at least one ethylenically unsaturated group
04/12/2001DE19943634A1 Neuartige Dicarbonsäurederivate mit pharmazeutischen Eigenschaften Novel dicarboxylic acid derivatives with pharmaceutical properties
04/11/2001EP1090904A2 Purification process for hydroxyalkyl (meth)acrylate
04/11/2001EP1090903A2 production process for hydroxyalkyl (meth)acrylate
04/11/2001EP1090902A2 Method for producing alcohols such as cyclohexanedimethanol
04/11/2001EP1090901A2 Method of producing polyetherester monomer and cement dispersants
04/11/2001EP1089960A1 Alpha-fluoro alkynoic acids with anticonvulsant activity
04/11/2001CN1291180A Process for producing ester
04/11/2001CN1291115A Vinyl Acetate catalyst preparing method
04/11/2001CN1290686A Method for catalytically synthesizing ethyl lactate from ammonium lactate
04/11/2001CN1290685A Continously hydrogen adding method
04/11/2001CN1290684A Method for catalytically heterogeneous reaction, particularly carboxylic V inylenation
04/10/2001US6215030 Catalytic reduction of acids, esters and anhydrides to alcohols
04/10/2001US6215029 Acylation of dichlorobenzene; catalytic etherification with chlorinated phenol in base and copper compound presence; oxidation, hydrolysis
04/10/2001US6215028 Partial hydrogenation of phenols; sulfonation of cyclohexanol and/or phenol in reaction mixture in presence of nitrogen base
04/10/2001US6215020 Basic clay catalyst for the production of pentylglycol monoesters
04/10/2001US6215019 Synthesis of 5-decenyl acetate and other pheromone components
04/10/2001US6215018 Acrylate monomer preparation using alkali metal alkoxides as ester interchange catalysts and bromide salt polymerization inhibitors
04/10/2001US6215009 Manufacture of cycloalkenylpolyene esters
04/10/2001US6214999 A brominating agent is reacted in a 2 phase medium, under effect photo-irradiation with biphenyl derivative
04/10/2001US6214955 Fluoropolymers made from selected partially fluorinated dienes, in which the repeat units are cycloaliphatic, useful for films, coatings and molded parts
04/10/2001US6214893 Wherein the decomposition products obtained by solvolysis are recycled as solvents; enhanced decomposition rate of the polyester; progressive reduction in pressure,high recoveries achieved in a short period of time
04/10/2001US6214763 Hydrogenation catalyst with diphosphine and acid
04/10/2001CA2164121C Method for purifying alcohol esters
04/07/2001CA2285578A1 Rhodium-catalyzed addition of alkenyl- and aryltrifluoroborates to aldehydes and enones
04/05/2001WO2001023341A1 Processes for the preparation of chemical compounds
04/05/2001WO2001023061A2 Recovery process for volatile compounds from solids in aqueous solution
04/05/2001US20010000182 Based on 4- or 5-trifluoromethyl-1H,1H,2H,3H,3H-perfluoro-heptane; cyclization to form cyclopentylene and -hexylene rings in allyl (co)polymer backbone; films; coatings; molding materials; chemical and heat resistance
04/05/2001DE19939566C1 Verzweigte, weitgehend ungesättigte Esteröle, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von kosmetischen und/oder pharmazeutischen Zubereitungen Branched, substantially unsaturated ester oils, process for their preparation and their use for the production of cosmetic and / or pharmaceutical preparations
04/05/2001CA2379624A1 Recovery process for volatile compounds from solids in aqueous solution
04/04/2001EP1088576A1 Liquid withdrawing tray for purification column, purification column and method for purification
04/04/2001EP1087838A1 Alkylidene complexes of ruthenium with n-heterocyclic carbene ligands and their use as highly active, selective catalysts for olefin metathesis
04/04/2001CN1289759A Process for preparing alpha-arylpropionic acid and its salts by oxonation of alpha-arylalcohol
04/04/2001CN1289626A Purification method and tower, and liquid seperating tower tray therefor
04/04/2001CN1064040C Method of synthesis of methylglycolate
04/03/2001US6211418 Distilling isophorone with acid catalyst to recover beta-isophorone, oxidizing in presence of amorphous carbon and base to 4-oxoisophorone, reacting in vapor phase with carboxylic acid using solid acid catalyst, hydrolyzing
04/03/2001US6211412 Reacting beta-keto ester with hydrogenating agent in presence of asymmetric organometallic molecular catalyst comprising metal atom having one or more chiral ligands coupled thereto, converting hydroxyester formed to epothilone precursor
04/03/2001US6211399 Pressurized chlorination and bromination of aromatic compounds
04/03/2001US6211398 Process for the preparation of dialkyl esters of naphthalenedicarboxylic acids
04/03/2001US6211390 Method for producing fatty acid esters
04/03/2001US6211320 Low viscosity acrylate monomers formulations containing same and uses therefor
04/03/2001US6211114 Catalyst and process for preparing 2-buten-1-ol compounds
04/03/2001US6210536 Polymerization inhibitors for acrylic acids and esters
04/03/2001CA2222010C Catalyst and process for preparing vinyl acetate
03/2001
03/29/2001WO2001021627A1 Hydroformylation using multidentate phosphite ligands
03/29/2001WO2001021616A1 Carbon dioxide-philic compounds and methods of synthesis thereof
03/29/2001WO2001021573A1 Process for terminal chlorination of fluorinated compounds
03/29/2001WO2001021570A1 Sulfur containing promoter for alkanes oxidative dehydrogenation processes
03/29/2001WO2001021567A2 Hydroformylation process utilizing multidentate phosphite ligands
03/29/2001WO2001021565A2 Process for producing 3-bromobenzoyl halides
03/29/2001WO2001021308A1 Hydroformylation of unsaturated compounds using polymeric phosphite ligands
03/29/2001CA2389840A1 Hydroformylation process utilizing multidentate phosphite ligands
03/29/2001CA2385329A1 Carbon dioxide-philic compounds and methods of synthesis thereof
03/29/2001CA2385315A1 Process for producing 3-bromobenzoyl halides
03/29/2001CA2381257A1 Hydroformylation of unsaturated compounds using polymeric phosphite ligands
03/28/2001EP1086071A1 Hyperforin derivatives, the use thereof and formulations containing them
03/28/2001EP1085942A1 Vinyl acetate catalyst comprising metallic palladium, copper and gold and preparation thereof
03/28/2001EP0814074B1 Process for preparing diaryl esters of oxalic acid
03/27/2001US6207856 Therapeutic compositions
03/27/2001US6207853 Homogeneous asymmetric hydrogenation using phosphine ligands of transition metals
03/27/2001US6207670 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds
03/27/2001US6207610 Compacts based on pyrogenically produced silicon dioxide
03/27/2001CA2046373C Process for selective epoxidation of unsaturated (meth)-acrylates, novel functional (meth)acrylates thus obtained, and application to the synthesis of novel polymers
03/27/2001CA1341210C Synthesis of 1,2-dioxetanes and intermediates therefor
03/27/2001CA1341209C Lubricating oil compositions and fuel compositions containing substantially straight chain alkylphenyl poly(oxypropylene)aminocarbamates
03/22/2001WO2001019776A2 Novel derivatives of dicarboxylic acid having pharmaceutical properties
03/22/2001WO2001019775A1 Process for removing titanium oxide or iron oxide red from depolymerization products obtained by glycolysis of polyesters containing titanium oxide or iron oxide red with ethylene glycol
03/22/2001WO2001019774A1 Method of producing 2-hydroxycarboxylic acid esters
03/22/2001WO2001019773A1 Process for the production and purification of n-butyl acrylate
03/22/2001WO2001019772A1 Process for the production and purification of n-butyl acrylate
03/22/2001WO2001019764A1 Ester-forming monomer
03/22/2001WO2001019761A2 Asymmetric 1,4-reductions of and 1,4-additions to enoates and related systems
03/21/2001EP1085008A1 Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediates
03/21/2001EP1085007A1 Process for the preparation of cyclooctanol
03/21/2001EP1085000A1 Process for producing carboxylic acid derivative and condensing agent comprising quaternary ammonium salt
03/21/2001EP1084740A1 Apparatus and method for handling easily polymerizable compound
03/21/2001EP1084113A1 A process for the preparation of macrocyclic metalloprotease inhibitors
03/21/2001EP1084095A1 Dewatering process
03/21/2001EP1083991A1 Method and catalyst for the oxidative carbonylation of dienes
03/21/2001EP1083989A1 Catalyst based on palladium, cadmium, alkali and lanthanoids and a method for producing vinyl acetate
03/21/2001EP1083988A1 Catalyst based on palladium, gold, alkali, and lanthanoid, and a method for producing vinyl acetate
03/21/2001CN1288003A Method for prepn. of aryl carboxylic ester
03/21/2001CN1287994A Equipment and method for treating compounds easy to be polymerized
03/21/2001CN1287881A Catalyst for prodn. of ethylene acetate
03/21/2001CN1063428C Technology for preparing propylene-glycol ether acetate by reaction distillation
03/21/2001CN1063427C Technology for preparing propylene-glycol monoalky lether carboxylic ester by catalytic distillation
03/20/2001US6204414 Intermediate compound (5-[2-hydroxy-5-(1-hydroxy-1-methylethyl)-2-methyl-cyclopentyl]-3-methyl-penta-2,4-dienyl) triphenylphos-phosphonium salt, for making metabolites of lycopene
03/20/2001US6204401 Purifying polyunsaturated fatty acid glycerides
03/15/2001WO2001017941A1 Method for producing 2-fluoroisobutyric acid esters and use of the same