Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
09/2005
09/07/2005CN1217911C Method for preventing easy-to-polymerize material from polymerization and preparation method of (methyl) acrylic acid and acrylate
09/06/2005US6939981 Ruthenium complexes of phosphine-aminophosphine ligands
09/06/2005US6939980 Process for producing ester
09/06/2005US6939444 Sulfur-bearing residue treatment system
09/01/2005WO2005080537A1 Method and device for continuous process transesterification of carboxylic acid esters in a supercritical monovalent alcohol
09/01/2005WO2005080468A1 Method for producing polycarbonate copolymer
09/01/2005WO2005080308A1 Cleaving oligomeric (meth)acrylic acid in the liquid phase and under pressure
09/01/2005WO2005080300A1 Optical resolver, process for producing optically active isomer, and 1,5-substituted bicyclo[3.3.0]-2-oxaoctane compound
09/01/2005WO2005079981A1 A catalyst system
09/01/2005WO2005079774A2 Management of ophthalmologic disorders, including macular degeneration
09/01/2005WO2005079219A2 Transparent candle and method of making
09/01/2005US20050192463 Method for storing (meth)acrylic acid or (meth)acrylic esters
09/01/2005US20050192462 Transporting by-product waste polyacrylic acid, a bottom liquid discharged from distillation, to storage tank through pipeline; heating, prevent retention or clogging in pipeline; solvent-free, concentrated polymerization inhibitors
09/01/2005US20050192457 Process for the carbonylation of ethylenically or acetylenically unsaturated compounds
09/01/2005US20050192456 Method for producing a fluorinated ester compound
09/01/2005US20050192455 Preparation of sterically hindered hydroxyphenylcarboxylic acid esters
09/01/2005US20050189516 Reacting a difunctional acyl halide with bis 1,4 (4'-hydroxybenzoyloxy)-R2-phenylene and hydroxyalkyls to produce final blend comprising polymerizable mesogens comprising at least three aromatic rings joined by ester linkages
09/01/2005US20050189515 Liquid crystal compounds, preparation thereof, and composition containing the same
09/01/2005US20050189296 Stable continuous operation; inhibiting sludge formation; washing, neutralization and/or extraction of aqueous waste for reuse; precooling to precipitate solids and separating
09/01/2005CA2555374A1 A catalyst system
09/01/2005CA2555261A1 Management of ophthalmologic disorders, including macular degeneration
08/2005
08/31/2005EP1568703A1 Method of fluorination
08/31/2005EP1568679A1 Process for producing optically active 3-hydroxypropionic ester derivative
08/31/2005EP1567474A2 Process for purifying diacerein
08/31/2005EP1567473A1 Mixed catalytic composition
08/31/2005EP1567470A1 Hydrogenation of benzene polycarboxylic acids or derivatives thereof
08/31/2005EP1483276B1 Ferrocenyl ligands and the use thereof in catalysis
08/31/2005EP1379485A4 Selective ring-opening cross-metathesis of cycloolefins
08/31/2005CN1662484A Process for preparing (r)-aryloxypropionic acid ester derivatives
08/31/2005CN1660770A Method for synthesizing cholic acid radicle functionalized olefin monomer with skpacing arm of polyether radicle
08/31/2005CN1660769A Technique for preparing chicoric acid by using chicory
08/31/2005CN1660768A Method for synthesizing beta keto ester
08/31/2005CN1660767A Method for preparing 3-methoxy methyl propionate
08/31/2005CN1660765A New technique of esterifying reaction for producing ethyl acetate
08/31/2005CN1660764A Process for the preparation of carboxylic acid esters
08/31/2005CN1660763A Reaction tower having new type heater for esterifying ethyl acetate
08/31/2005CN1660758A Process for the selective (AMM) oxidation of lower molecular weight alkanes and alkenes
08/31/2005CN1216889C Bidentate ligands useful in catalyst system
08/31/2005CN1216849C Process for preparation of ethylene acetate ester
08/31/2005CN1216845C Method for preparing acetic acid and / or methyl acetate in the presence of iridium and platinum
08/30/2005US6936731 Extraction from a fermentation broth, obtaining an ammonium salt of pravastatin from the solution, purifying the salt and transposing the salt to pravastatin sodium
08/30/2005US6936730 Iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum
08/30/2005US6936722 Polyhalogenated ethers
08/25/2005US20050187392 Hydrolytic kinetic resolution of cyclic substrates
08/25/2005US20050187374 Polyester synthesis with enhanced titanium catalyst composition
08/25/2005US20050187299 2-(1-hydroxyalkyl)-cyclopent-2-en-1-one derivative starting material is thermally rearranged to a 2-alkylidene-3-oxo-cyclopentylacetate derivative; intermediates to perfumes such as methyl jasmonate
08/25/2005DE102004005318A1 Verfahren zur Herstellung von 2,5-Dimethylphenylessigsäure A process for the preparation of 2,5-dimethylphenylacetic acid
08/25/2005DE102004004214A1 Polymerdispersionen oder -lösungen mit 3,4 Dihydroxyphenylgruppen Polymer dispersions or solutions containing 3,4 dihydroxyphenyl
08/24/2005EP1565509A1 Catalytic composition of organotin compounds
08/24/2005EP1565434A1 Method for producing carotenoids
08/24/2005EP1565425A1 Carbonylation of vinyl acetate
08/24/2005EP1565424A1 Method for production of alkyl esters
08/24/2005EP1270538B1 Processes for the preparation of macrocyclic ketones
08/24/2005CN1659260A Process for producing fatty acid alkyl ester composition
08/24/2005CN1659213A (meth)acrylic esters of polyalkoxylated glycerine
08/24/2005CN1659212A Method for the production of esters of polyalcohols
08/24/2005CN1659211A (meth)acrylic esters of polyalkoxylated trimethylolpropane
08/24/2005CN1657518A Extraction method of pyrethrin
08/24/2005CN1657169A Preparation method of supported catalyst for synthesizing vinyl acetate
08/24/2005CN1216031C Method of preparing valeryl acetate
08/24/2005CN1216030C O-acyl-alpha-hydroxycarboxylic ester compounds and their preparation method
08/24/2005CN1216029C Process for removing titanium or iron oxide from eolymerization products obtained by glycolysis of polyesters contg. titanium oxide or iron oxide with ethylene glycol
08/24/2005CN1215901C Method and device for fluidized bed reaction
08/23/2005US6933404 Methods of making intermediates from polyhydroxyalkanoates
08/23/2005US6933403 Mono carbonylation of benzene diols
08/23/2005US6933401 Process for the production of vicinal diesters from epoxides
08/23/2005US6933398 Process for the transesterification of fat and/or oil by means of alcoholysis
08/23/2005US6933257 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
08/18/2005WO2005075651A1 Process for producing optically active alcohol and carboxylic acid
08/18/2005WO2005075442A1 Dehydrating condensation agent having property of accumulating at interface with water
08/18/2005WO2005075406A1 Adamantane derivatives and process for producing the same
08/18/2005WO2005075405A1 Preparation of levulinic acid esters from alpha-angelica lactone and olefins
08/18/2005WO2005075404A1 Azeotropic distillation method
08/18/2005WO2005075401A1 Method for producing 2,5-dimethylphenyl acetic acid
08/18/2005WO2005075384A1 Process for production of aromatic compounds
08/18/2005US20050182284 Contacting feedstock containing olefin having 4 or 5 carbon atoms under oligomerization conditions with selectivated crystalline molecular sieve oligomerization catalyst and recovering oligomeric product, of which a dimeric or trimeric component has average degree of brancing of at most 2
08/18/2005US20050182235 Methods of making intermediates from polyhydroxyalkanoates
08/18/2005US20050182168 Stabilized ester compositions and their use in film-forming compositions
08/18/2005US20050181950 Gallic acid derivative and process of preparing the same
08/18/2005CA2555453A1 Cross-coupling process for production of aromatic compounds from aliphatic organic compounds and aromatic organometallic reagents
08/18/2005CA2555317A1 Process for producing optically active alcohol and carboxylic acid
08/17/2005EP1563081A2 Method for producing esterified astaxanthin from esterified zeaxanthin
08/17/2005EP1562998A2 Novel phase change solvents
08/17/2005EP1562929A1 Manufacture of tocopheryl acetate
08/17/2005EP1562888A1 A process for the preparation of alkylidenecyclopentanone derivatives
08/17/2005CN1656077A Process for preparing chiral diol sulfones and dihydroxy acid HMG CoA reductase inhibitors
08/17/2005CN1654452A Method of producing carboxylate
08/17/2005CN1654451A Process for synthesis of diol monoether carboxylate
08/17/2005CN1654450A Method for simultaneously synthesizing diol monoether carboxylate and diaryl carbonate
08/17/2005CN1215040C Synthetic method of 4-acetoxy-2-ethoxy ethyl benzoate
08/17/2005CN1215039C Catalyst for hydrogenation of dimethyl terephthalate to produce 1, 4-dimethyl hexahydrophthalate and its preparation method
08/17/2005CN1215037C Process for carbonylation of ethylenically unsaturated compounds
08/17/2005CN1215036C Optimized catalyst addition to enhance esterification catalyst performance
08/17/2005CN1214865C New pattern catalyst for preparing methyl methacrylate by one-step oxidation-esterification from methylacrolein
08/16/2005US6930211 Production methods of citalopram and intermediates therefor
08/16/2005US6930198 Method for production of unsaturated carboxylic ester
08/16/2005CA2309449C Esters with musky odor and their use in perfumery
08/11/2005WO2005051372A3 Method of purifying pravastatin
08/11/2005WO2005019152A3 Process for preparing 3-aryl-2-hydroxy propanoic acid derivatives without resolution
08/11/2005US20050176994 Simultaneously or continuously reacting a sulfuric ester alkylating agent, an aromatic hydrocarbon preferably containing an electron withdrawing group and an electron donating group, and a maleic anhydride derivative.