Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
12/2004
12/29/2004CN1558908A Novel diphosphines, their complexes with transisition metals and their use in asymmetric synthesis
12/29/2004CN1558893A Propargylbenzyl alcohol ester derivative, process for producing the same, and insecticide/insectifuge containing the same
12/29/2004CN1557800A Process for preparing ethyl citrate suitable for industrialized production
12/29/2004CN1557799A Production process for gossypol acetic acid materials
12/29/2004CN1182178C Continuous process for producing bis (3-hydroxypropyl) terephthalate
12/29/2004CN1182099C Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping
12/29/2004CN1181921C Catalyst for esterification and transesterification and process for producing ester
12/29/2004CA2529247A1 Method for isolating a homogeneous catalyst containing rhodium
12/29/2004CA2528894A1 Method for the continuous production of a compound that carries at least two functional groups
12/28/2004US6835850 Reacting a conjugated diene with carbon monoxide and an alcohol to form an alkenoic ester by using a durable catalyst complex of palladium cations, a ligand of bridged phospha-cycloalkanes and source of anions; by-product inhibition
12/28/2004US6835849 Using basic catalyst; synthesis of methyl 4-pentenoate from 5-methyl butyrolactone and methanol; improved selectivity to methyl 4-pentenoate
12/28/2004US6835495 Pentacyclic anion salts or tetrazapentalene derivatives and their uses as ionic conducting materials
12/23/2004WO2004111255A1 Ion-exchange filtration of fermentation broth
12/23/2004US20040260126 Enantiomerically pure metallocenes (rhodium, ruthenium, or palladium) for assymetric hydrogenation of alpha , beta -unsaturated acids or esters; reusable, stable and highly enantioselective; the metal oxide support is modified with a metal alkoxide and a heteropolyacid anchoring agent
12/23/2004US20040260122 Process for producing (meth)acrylic acids and process for distilling the same
12/23/2004US20040260119 Preparation of 3-alkoxy-2-methylbenzoic acids
12/23/2004US20040260116 Method for making a polyether monomer
12/23/2004US20040260114 Reacting with a carbonyl halide, an anhydride, a carbamoyl halide, or a chloroformate without any organic or inorganic bases; monoacetyl resorcinol from acetic anhydride and resorcinol for example
12/23/2004US20040260113 Mixture of alicyclic polycarboxylic esters with high cis content
12/23/2004US20040260101 With difluoromethylenedioxybenzene or ethylenedioxybenzene rings; hydrogenation catalysts
12/23/2004US20040260091 Ligands for asymmetric reactions
12/23/2004US20040259946 Novel process for stereoselective reduction of b ketoesters
12/23/2004US20040259724 Carbonylation of pentenenitrile to 5-cyanovaleric acid; reduction to 6-aminocaporic acid; cyclization to caprolactam
12/23/2004US20040256743 Replacing a halogen atom in organic compounds using as a catalyst a tris[tris(dialkylamino)- or tris(alkyleneamino)-phosphoranylideneamino]phosphine oxide or a phosphazenium derivative of the phosphine oxide
12/22/2004EP1489106A1 Arene-ruthenium complexes immobilized on polymers, catalysts consisting of the complexes, and processes for organic syntheses with the same
12/22/2004EP1489065A1 Aldehyde conversion method using a molecular sieve and the use of the molecular sieve as a catalyst in said method
12/22/2004EP1487930A2 Esterification of xanthophylls
12/22/2004EP1487775A2 Methods of manufacturing derivatives of beta-hydroxycarboxylic acids
12/22/2004EP1487773A1 Method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid the esters and/or nitriles thereof
12/22/2004EP1487771A1 Fluorination of dicarbonyl compounds
12/22/2004CN1557089A Process, arrangement, devices for seizure of a shared telephone line
12/22/2004CN1556786A 3,4,5-trimethoxy phenyl-based ester compound and preparation method thereof and whitening cosmetic composition containing the same
12/22/2004CN1556784A Process for improving the stability and/or preventing the deactivation of the catalyst during the manufacture of acetic acid and/or of methyl acetate
12/22/2004CN1556783A Vapor phase carbonylation process using iridium-gold co-catalysts
12/22/2004CN1556093A Preparation method of gallic acid high grade alxoxide ester
12/22/2004CN1556092A Preparation meethod of high purty ethylacetate
12/22/2004CN1181042C Extracting and purifying method for chlorogenic acid in honeysuckle
12/22/2004CN1181041C Process for preparing methyl beta-hydroxybutyrate by carbonylation of epoxy propane
12/22/2004CN1181039C Improved method of preparing acrylic acid-2-ethyl caproite
12/22/2004CN1181038C Method of catalyzing esterification of carboxylic acid and epoxy compound
12/22/2004CN1181037C Process for preparation of 2-alkyl-2-adamantyl esters
12/22/2004CN1181020C Organic matter recovering and halogen acid refining process of industrial acid effluent containing halogen hydride
12/22/2004CN1180884C Preparing process of catalyst for cyclopropanizing reaction of 2,5-dimethyl-2,4-hexadiene
12/21/2004US6833477 Process for producing a vic-dichloro acid fluoride
12/21/2004US6833462 Process for preparing acrylate compound
12/16/2004WO2004108654A1 Chain lactic acid oligomer derivative and process for producing the same
12/16/2004WO2004108652A2 Enantioselective process for the preparation of methyl dihydroepijasmonate
12/16/2004WO2004108651A1 Supported metal-phosphine-aminophosphine catalysts
12/16/2004WO2004108650A1 Process for producing carboxy-terminated lactone polyester/unsaturated monomer
12/16/2004WO2004108649A2 Oxidation process for the production of carboxylic acids and alkenes
12/16/2004WO2004108636A2 Isotopically labeled chemically stable reagents and process for the synthesis thereof
12/16/2004WO2004089867A3 Process for the preparation of dialkyl 3-oxoglutarates
12/16/2004WO2004052939A3 Ligands for metals and improved metal-catalyzed processes based thereon
12/16/2004US20040254396 Process for producing fluorinated polyvalent carbonyl compound
12/16/2004US20040254395 Ozonolysis process for preparing menthyl glyoxylate hydrate
12/16/2004US20040254392 Process for producing optically active 3,5-dihydroxycarboxylic acid derivative
12/16/2004US20040254196 Cinnamaldehyde derivatives inhibiting growth of tumor cell and regulating cell cycle, preparations and pharmaceutical compositions thereof
12/16/2004US20040254066 Dissolving or dispersion forming emulsion; transition metal catalyst encapsulated within a permeable polymer; catalyst for foirming polyol from olefin
12/15/2004EP1486499A1 Endo-2,3-epoxy-7-oxabicylco[2.2.1]heptane-endo-5-carboxylic acid derivative
12/15/2004EP1486482A1 Process for producing a polyfluoroalkyl (meth)acrylate
12/15/2004EP1486481A2 Hydroformylation process
12/15/2004EP1486479A1 Method for producing organic compounds by substituting halogen atoms
12/15/2004EP1485392A2 Bisphosphite ligands for carbonylation processes
12/15/2004EP1485343A1 Amorphous hmg-coa reductase inhibitors of desired particle size
12/15/2004EP1485342A1 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof
12/15/2004EP1485082A1 Methods for synthesis of prodrugs from 1-acyl-alkyl derivatives and compositions thereof
12/15/2004EP1117629B1 Purification of ethyl acetate from mixtures comprising ethanol and water by pressure swing distillation
12/15/2004EP1100765B1 A process for producing terephthalic acid and/or dimethyl terephthalate
12/15/2004CN1555353A Vapor phase carbonylating process using gold catalysts
12/15/2004CN1555351A Method for the preparation of unsaturated hydroxy fatty acids and their esters, their use in pharmaceutical and/or cosmetic preparations
12/15/2004CN1555292A Gold based hererogeneous carbonylation catalysts
12/15/2004CN1555004A Display card for increasing video play smooth degree
12/15/2004CN1554650A Process for the preparation of vialoguestamin d analogs
12/15/2004CN1554638A Catalytic alcohol acid esterizing method
12/15/2004CN1554635A Process for preparing intermediates
12/15/2004CN1179938C Process for producing vitamin D analogue
12/15/2004CN1179937C Process for prep. of (R)-and (S)-2-(4-hydroxy-pheneyloxy) propionic acid and/or its alkyl ester mixture
12/15/2004CN1179936C Preparation method for cyclopropane esters
12/15/2004CN1179790C Esterification catalyst compositions and use thereof
12/14/2004US6831195 Method for production of organic acid
12/09/2004WO2004106277A1 Depolymerization method and device
12/09/2004WO2004105929A2 Phase transfer catalysis scrubber
12/09/2004WO2004092106A3 Process for preparing alkoxy- and aryloxy-phenols
12/09/2004WO2004078679A3 Process for conducting equilibrium-limited reactions
12/09/2004WO2003048090A8 The use of microencapsulated transition metal reagents for reactions in supercritical fluids
12/09/2004US20040249220 Process for producing optically active 2-alkoxy-1-(trifluoromethyl-substituted phenyl) ethanol derivatives
12/09/2004US20040249216 a multidentate organic phosphorous ligand for preparing alkenecarboxylic acid derivatives by carbonylation of conjugated dienes in the presence of a hydroxyl-containing compound in the liquid phase in the presence of a carbonylation catalyst that comprises a palladium compound
12/09/2004US20040249192 Process for the production of acetic acid C4-esters
12/09/2004US20040249190 Method of purifying and separating 2-fluoro-3-oxoalkylcarboxylic acid ester
12/09/2004US20040249188 Process for the preparation of 3-ethoxy-4-(alkoxy carbonyl)-phenyl acetic acid. (an intermediate of repaglinide)
12/09/2004US20040249184 aromatic fused phosphepine ligands, e.g., 4-Phenyl-4,5-dihydro-3H-dinaphtho[2,1-c; 1',2'-e]phosphepine and their preparation from 2,2'-dimethylbiphenyls or binaphthyls and aminophosphorus dichlorides or aryl or alkyl phosphorus dichlorides; hydrogenation catalysts with metal compounds
12/09/2004US20040249163 Process for preparing beta-ketoester compound
12/09/2004US20040249116 For use in radiation-curable formulations, viscosity
12/09/2004US20040248919 Insulin sensitizers which do not increase triglyceride levels or suppress thyroid hormone axis; such as 7-[3,5-di-tert-butyl-2-(2,2-difluoroethoxy)-phenyl]-4-fluoro-3-methyl-octa-2,4,6-trienoic acid; synthesis; retinoid X receptor (rxr)
12/09/2004US20040245505 Process for the production of fluorinated organic compounds and fluorinating agents
12/09/2004DE10330217B3 Production of metal salts of short-chain unsaturated carboxylic acids, e.g. useful in coatings and rubber materials, comprises reacting a metal alkoxide with an alkenoic acid or maleic acid in the presence of oxygen
12/09/2004CA2527969A1 Depolymerization method and device
12/08/2004EP1484311A1 Process for producing chain oligolactic acid ester
12/08/2004EP1484304A1 Process for the preparation of fluorophenylalkylene acid derivatives
12/08/2004EP1483276A1 Ferrocenyl ligands and the use thereof in catalysis