Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
01/2000
01/04/2000US6011176 Using anionic flocculants for organic-aqueous phase separation
01/04/2000US6011169 Process for producing optically active cyclopropanecaboxylic acid esters
01/04/2000US6010975 Catalyst composition for preparing 3-pentenoic ester from butadiene
12/1999
12/30/1999DE19828491A1 Silicon dioxide molded article, useful as a catalyst support for the production of vinyl acetate monomer
12/30/1999DE19827844A1 Production of shell catalysts useful in e.g. hydrogenation and oxidation, especially gas phase production of vinyl acetate
12/29/1999WO1999067195A1 Alpha-fluoro alkynoic acids with anticonvulsant activity
12/29/1999WO1999067022A1 Method for producing shell catalysts by cvd process
12/29/1999EP0967197A1 Process for the preparation of alkyl esters by transesterification or alcoholysis
12/29/1999EP0967015A2 Use of ferrocenyl ligands in catalytic enantioselective hydrogenation
12/29/1999EP0967009A2 Catalyst and use thereof in the production of vinyl acetate
12/29/1999EP0966420A1 2-arylcyclopentan-1,3-diones
12/29/1999EP0766660B1 Cyclohexanone derivatives, method of preparing them and intermediates used in the method
12/29/1999CN1239943A Process for preparation of vinyl acetate
12/29/1999CN1239942A Preparation of vinyl acetate
12/29/1999CA2336026A1 Process for producing coated catalysts by cvd
12/29/1999CA2335603A1 Alpha-fluoro alkynoic acids with anticonvulsant activity
12/28/1999US6008417 Oxidative dehydroxylation, oxidative cleaving, intramolecular aldol condensation, silylation, c3-chain lengthening and simultaneous saponification, reaction with vinylmagnesium bromide, deprotection, and wittig reaction
12/28/1999US6008404 Reacting an alcohol or polyol with an ester of a methacrylate or acrylate in presence of transesterification catalyst and an alkali metal bromide salt to produce alcohol or polyol ester of acrylate/methacrylate free of polymeric derivative
12/28/1999US6008392 Reacting a fatty alkyl ester, an alkylene oxide in presence of etherification catalyst containing a primary catalyst and a cocatalyst selected from lithium hydroxide, an alkaline metal, a tin salt and mxiture
12/28/1999US6008391 Process for preparing alkoxylated fatty acid alkyl esters
12/28/1999US6008371 Reacting a hydroxlyalkylene substituted heterocyclic compond with 1 to 4-alkyl ester of acrylic or methacrylic acid in presence of a catalyst containing calcium hydroxide
12/28/1999CA2151864C Process for preparing alkyl acrylates by direct esterification
12/26/1999CA2276476A1 Mouldings based on silica
12/23/1999DE19921924A1 Verwendung von Ferrocenylliganden zur katalytischen enantioselektiven Hydrierung Use of ferrocenyl ligands for the catalytic enantioselective hydrogenation
12/22/1999EP0965574A2 Process for enantioselective hydrogenation
12/22/1999EP0965383A1 Catalyst and method for producing benzyl esters
12/22/1999CN1047589C Process for ordinary-temp. catalytic synthesis of 4-ethyl acetoxybutyrate
12/22/1999CN1047588C Process for recovery of carbonylation product
12/21/1999US6005151 Reacting haloaromatic compound with olefin compound using palladium complex catalyst
12/21/1999US6005148 Supported catalysts
12/21/1999US6005139 Improved process for reacting a halogenated ester with an alkali metal alkoxide to form an alkoxy ester and a salt
12/21/1999US6005003 Osteoporosis treatment
12/21/1999CA1340854C Process for the preparation of 3-substituted derivatives of 1-amino 2-hydroxy-propane
12/16/1999WO1999064406A1 A process for the preparation of macrocyclic metalloprotease inhibitors
12/16/1999WO1999064388A1 Hyperforin derivatives, the use thereof and formulations containing them
12/16/1999WO1999064387A1 Dewatering process
12/16/1999WO1999064154A1 Poly-oxyanions as anchoring agents for metal complexes
12/16/1999CA2333551A1 A process for the preparation of macrocyclic metalloprotease inhibitors
12/15/1999EP0963974A1 Process for acyloxylating side chains of alkyl-substituted aromatic compounds and catalysts used therefor
12/15/1999EP0931051B1 Method for preparing fatty acid esters
12/15/1999CN1238758A Method for preparing (meth) acrylic acid esters
12/15/1999CN1238757A Method for preparing (meth) acrylic acid esters
12/15/1999CN1238756A Asiatic acid dervatives and medicines for treating wounds, which contains the same
12/14/1999US6002030 Esterified propoxylated polyol process
12/14/1999US6002010 Alkyl esters and carbonamides from carbonitriles and alcohols at elevated temperatures on titanium oxide catalysts.
12/14/1999US6001781 The chemical condensates useful as fuel and lubricant oil additives
12/09/1999WO1999062917A1 Production of optically active phospholanes
12/09/1999WO1999062855A1 Hydroformylation of olefins using supported bis(phosphorus) ligands
12/09/1999WO1999062852A1 Method for producing hexanediol-1,6
12/09/1999WO1999062634A1 Vinyl acetate catalyst comprising metallic palladium, copper and gold and preparation thereof
12/09/1999WO1999062633A1 Vinyl acetate catalyst prepared with potassium aurate and comprising metallic palladium and gold on a carrier precoated with copper
12/09/1999WO1999062632A1 Vinyl acetate catalyst comprising metallic palladium and gold prepared with potassium aurate
12/09/1999CA2331817A1 Method for producing hexanediol-1,6
12/09/1999CA2330153A1 Hydroformylation of olefins using supported bis(phosphorus) ligands
12/08/1999EP0962444A1 Process for treatment of crude liquid vinyl acetate
12/08/1999EP0962438A1 Process for the preparation of 1,4-butanediol, butyrolactone and tetrahydrofuran.
12/08/1999EP0961820A1 Additive for fuel oiliness
12/08/1999EP0961766A1 Phenoxyacetic acid derivatives and their use as herbicides
12/08/1999EP0961765A2 Preparation of carboxylic compounds and their derivatives
12/08/1999EP0823890B1 Process and intermediate products for preparing substantially isomer-pure e-2-[2-aryloxymethylene phenyl]-crotonic acid methyl esters
12/08/1999EP0772582B1 Manufacture of perfumes for laundry and cleaning compositions
12/08/1999CN1237957A Cross-dimerization of olefins
12/08/1999CN1237572A Preparation method of diethyl malonate
12/08/1999CN1237571A Preparation method of diethyl malonate
12/08/1999CN1237570A Preparation method of diethyl malonate
12/08/1999CN1047173C Optically active beta-aminoalkyxoborane complex
12/07/1999US5998659 Process and catalyst for producing vinyl acetate
12/07/1999US5998658 Catalytic processes for the preparation of acetic esters
12/07/1999US5998657 Process for the generation of α, β-unsaturated carboxylic acids and esters using niobium catalyst
12/07/1999US5998633 Process for the synthesis of protected esters of (S)-3,4-dihydroxybutyric acid
12/07/1999US5997840 Chiral solid catalyst, its preparation and its use for the production of substantially enantiomerically pure products
12/02/1999WO1999050221A3 Method for producing (meth)acrylic acid and (meth)acrylic acid esters
12/02/1999DE19826614A1 Verfahren zur Herstellung von Hexandiol-1,6 A process for preparing hexanediol-1,6
12/02/1999DE19824121A1 Herstellung optisch aktiver Phospholane, deren Metallkomplexe und Anwendung in der asymmetrischen Synthese Preparation of optically active phospholanes, their metal complexes and application in asymmetric synthesis
12/01/1999EP0961499A1 Predictive coding method and decoding method for dynamic image
12/01/1999EP0960112A2 Reduced calorie cooking oils and preparation thereof
12/01/1999EP0871604B1 Process and catalyst for producing vinyl acetate
12/01/1999EP0813516B1 Process for the preparation of stilbenedicarboxylate esters
12/01/1999EP0783480B1 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof
12/01/1999CN1237152A Process for preparation of dicarboxylic acid monoesters
12/01/1999CN1236773A Process for preparing and separating ethyl docosahexenoate and ethyl eicosapentaenoate
12/01/1999CN1046936C Process for carbonylation of acelylenically unsaturated compound
11/1999
11/30/1999US5994598 Method of preparing perillyl alcohol and perillyl acetate
11/30/1999US5994578 Ester preparation
11/30/1999US5994110 Methods for direct synthesis of compounds having complementary structure to a desired molecular entity and use thereof
11/30/1999US5993610 Azeotropic distillation with methyl formate, 2,2-dimethyl butane, hexane, cyclopentane, 2,2,4-trimethylpentane, t-butyl methyl ether, petroleum ether, dimethoxymethane or 4-methyl-2-pentanone.
11/30/1999CA2000351C Method and apparatus for continuous chemical reactions
11/25/1999WO1999060003A1 Novel furylphosphines and organometallic complexes containing them
11/25/1999WO1999059948A1 PROCESS FOR THE PREPARATION OF α-OXOALDEHYDES
11/25/1999WO1999059947A1 Process for preparing ethers and esters
11/25/1999WO1999059718A1 Method and catalyst for the oxidative carbonylation of dienes
11/25/1999CA2333183A1 Novel furylphosphines and organometallic complexes containing them
11/24/1999EP0959064A1 Ester synthesis
11/24/1999EP0958302A2 Purification of polyol fatty acid polyesters using a mixing vessel with controlled mixing
11/24/1999EP0958301A2 Purification of polyol fatty acid polyesters using a mixing vessel
11/24/1999EP0958272A1 Preparation of alpha, beta-unsaturated carboxylic acids and esters in the presence of an oxide of niobium as catalyst
11/24/1999EP0891224B1 A method of preparing a vinyl acetate catalyst employing an alkali metal borate
11/24/1999CN1236353A Process for preparing a linear aldehyde
11/24/1999CN1235959A Process for preparing 3,3-dimethyl amylene-4 acid methyl ester by direct esterification
11/24/1999CN1235957A Purification process