Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
05/2003
05/21/2003EP0996610B1 Process for the production of dimethylesters of unsaturated dicarboxylic anhydrides
05/21/2003EP0937703B1 Method for purifying pyruvic acid compounds
05/21/2003EP0927238B1 Rinse added fabric softening compositions and method of use for the delivery of fragrance derivatives
05/21/2003EP0842139B1 The preparation of chiral endo-5-norbornen-2-ol
05/21/2003CN1418860A Method for preparing 2-phenylacrylic acid and ester thereof
05/21/2003CN1109107C Chiral synthesis of tertiary alcohols with a hydrolase
05/20/2003US6566552 Reduction of an alkyl 4-chloro-3 -oxobutyrate or -oxobutyr amide to 4-chloro-3 -hydroxybutyrate or -hydroxybutyramide in the presence of ruthenium complex reduction catalyst followed by quaternization with trimethylamine
05/20/2003US6566547 Fungicides
05/20/2003US6566298 Diphosphines
05/15/2003WO2003040159A2 Bidentate ligands for the carbonylation of unsaturated compounds
05/15/2003WO2003040149A2 Asymmetric catalysis based on chiral phospholanes and hydroxyl phospholanes
05/15/2003WO2003040082A1 Process for producing optically active 3,5-dihydroxycarboxylic acid derivative
05/15/2003WO2003040081A1 Improvements in or relating to a method for transesterifying vegetable oils
05/15/2003WO2003040002A1 Storage tank for easily polymerizable compound and storage method
05/15/2003US20030092936 For reacting ethanol and oxygen, to a produce acetic acid or acetic acid and ethyl acetate; performance
05/15/2003CA2466252A1 Bidentate ligands for the carbonylation of unsaturated compounds
05/15/2003CA2464446A1 Process for producing optically active 3,5-dihydroxycarboxylic acid derivative
05/14/2003EP1309539A1 Process for the synthesis of fluoroorganic compounds
05/14/2003EP1202785B1 Column chromatography separation method
05/14/2003EP1140769B1 Method for producing glyoxylic acid esters or the hydrates thereof
05/14/2003EP1098699B1 Production of glycol monoester
05/14/2003EP1069945B1 Catalyst and process for the oxidation of ethane and/or ethylene
05/14/2003CN1417198A Diterpene compound and its prepn and use
05/14/2003CN1417197A Diterpene compound and its prepn and use
05/14/2003CN1417196A Compound with (methyl) acrylyl radical and its preparation process
05/14/2003CN1417194A Catalyst for hydrogenating Fischer-Tropsch synthetic wax and its prepn
05/13/2003US6562967 Drug screening; purity
05/13/2003US6562966 Combining a racemic or a diastereomeric mixture of a chiral substrate with a nucleophile, in the presence of a chiral non-racemic catalyst
05/13/2003US6562963 Coupling using organosilicon compound
05/13/2003US6562944 Generation of preferential halogen compound; obtain carboxylic acid mixture, incubabte with halogenated compound, recover by-product
05/08/2003WO2003018183A3 Dirhodium catalyst compositions and methods for using same
05/08/2003WO2002094740A8 Hydrogenation processes performed in ionic liquids
05/08/2003WO2002026750A8 Phosphino-aminophosphines, catalyst complexes and enantioselective hydrogenation
05/08/2003WO1998058892A3 Preparation of fluoroalkyl compounds and their derivatives
05/08/2003US20030088128 Diaryl ether condensation reactions
05/08/2003US20030088120 Oxidatively coupling a benzene aromatic compound in the presence of a a palladium salt, a copper salt, and a bidentate ligand compound capable of forming a platinum complex via a nitrogen atom and an oxygen atom
05/08/2003US20030088054 Method of making oleochemical oil-based polyols
05/08/2003US20030087879 Process for the stabilization of acylglycerols comprising high amounts of omega-3 polyunsaturated fatty acids by means of gamma-cyclodextrin
05/07/2003EP1308434A1 (Meth)acryloyl group-containing compound and method for producing the same
05/07/2003EP1308432A1 Process for the preparation of 5- (4-chlorophenyl)-methyl]-2,2-dimethylcyclopentanone
05/07/2003EP1308208A1 Catalyst for esterification and transesterification and process for producing ester
05/07/2003EP1307423A1 New processes for the production of fexofenadine
05/07/2003EP1307422A2 Transesterified fatty esters for lubricant and refrigerant oil system
05/07/2003EP1307421A1 Process for the synthesis of diaryl esters of dicarboxylic acids
05/07/2003EP1307418A2 Process for the preparation of chiral 1,4-diaryl-2-fluoro-2-butenes
05/07/2003EP1115680B1 Allylic substitution reactions
05/07/2003EP1066242B1 Process and apparatus for the production of butylacetate and isobutylacetate
05/07/2003EP1042273B1 Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores
05/07/2003EP0889863B1 Surface modified carbonate materials
05/07/2003EP0792270B1 Use of 2,7,8-trimethyl-2-(beta-carboxyethyl)-6-hydroxy chroman (LLU-alpha)
05/07/2003CN1416480A 亲水添加剂 Hydrophilic additives
05/07/2003CN1416415A Process for prodn. of high-purity bis-beta, -hydroxyothyl terephalate
05/07/2003CN1415414A Catalyzer utilized to synthesize oxalate and its preparation method
05/07/2003CN1107667C Cis-5,9,12-octade trienic acid derivative and its prepn.
05/07/2003CN1107538C Vinyl acetate catalyst comprising palladium and gold deposited on copper contg. carrier
05/06/2003US6559343 Process for producing 2,2,4,4-tetra-substituted 1,3,5-cyclohexanetriones
05/06/2003US6559336 Single-step, efficient reaction of an acyclic beta-ketodiester or beta- keto-haloester and an alpha-unsaturated aldehyde; intermediates for fungicidal benzophenones; pollution control; corrosion resistance; nontoxic
05/06/2003US6559335 Process for the preparation of 3-aryl-2-hydroxy propanoic acid
05/06/2003US6559105 Lubricant compositions containing ester-substituted hindered phenol antioxidants
05/02/2003EP1306364A1 Bis-beta-hydroxyethyl terephthalate
05/02/2003EP1306363A1 Adamantyl ester monomer composition
05/02/2003EP1306360A2 Granulates of alkali and alkaline earth alcoholates
05/02/2003EP1305324A1 Use of chiral diphosphines as optically active ligands
05/02/2003EP1305284A1 Process and intermediate compounds for the preparation of pyrrolidines
05/02/2003EP1305277A2 Process for the preparation of alkyl 1-methylcyclopropanecarboxylate
05/02/2003EP1305276A2 Method for producing tertiary c 4?-c 8?-alkyl esters of (meth)acryl acid
05/02/2003EP1305275A1 Method for producing tert-butyl esters of aliphatic c 1?-c 4?-carboxylic acids
05/02/2003EP1305270A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids
05/02/2003EP1064288B1 Process for the preparation of bisphosphines
05/02/2003EP0941231B1 Heteroarylic-arylic diphosphines as chiral ligands
05/01/2003WO2003036886A2 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
05/01/2003WO2003035598A1 Process for preparing exo-rich norbornene ester
05/01/2003WO2003035596A2 Inhibitor mixture for (meth)acrylic acid and (meth)acrylic acid ester
05/01/2003WO2003035595A1 Novel norbornane and norbornene derivatives, use thereof and perfumed products containing same.
05/01/2003US20030083529 Process for producing vinyl ether compounds
05/01/2003US20030083514 Single-phase process for production of fatty acid methyl esters from mixtures of triglycerides and fatty acids
05/01/2003US20030081582 Aggregating multiple wireless communication channels for high data rate transfers
05/01/2003CA2464409A1 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
04/2003
04/30/2003CN1414959A Process for production of 5-oxy-7-oxabicyclo-[4.1.0]hept-3-ENE-3-carboxylic acid esters
04/30/2003CN1414943A Method for preparing lactic acid ester composition and use thereof as solvent
04/30/2003CN1413642A Method for extracting chrysanthemum medicinal component and extract
04/30/2003CN1107048C Process for production of carboxylic acid esters of alkylene glycol monoalkyl esters
04/30/2003CN1107046C Method for producing acrylic acid and acrylic acid esters
04/30/2003CN1107044C Method for preparing 2-cyclododecyl-1-propanol
04/29/2003US6555707 Cooling a gaseous reaction mixture of acrylic acid obtained by gas-phase oxidation, using an inert high-boiling solvent; separation into a low-boiling fraction, a crude acrylic acid, and a bottom product; esterifying; byproduct inhibition
04/29/2003US6555704 Process for the carbonylation of arylalkyl halides
04/29/2003US6555703 Reacting dibenzyl ethers with carboxylic acids in the presence of heteropolyacids as catalysts; making benzyl acetate
04/24/2003WO2003034732A1 Interactive protocol for remote management of access control to scrambled data
04/24/2003WO2003033581A1 Method for recycling pet bottle
04/24/2003WO2003033510A1 Novel chiral ligands, transition metal complexes thereof, and the catalytic use of the same
04/24/2003WO2003033469A1 A process for preparing beta-ketoester compound
04/24/2003WO2003033461A1 Synthesis of oxygen-substituted benzocycloheptenes, used as valuable intermediate products for producing tissue-selective oestrogens
04/24/2003WO2003033449A1 Mono carbonylation of benzene diols
04/24/2003WO2003033097A2 Rotor-stator apparatus and process for the formation of particles
04/24/2003US20030078460 Process for producing alpha, alpha-difluorocycloalkane compound
04/24/2003US20030078457 A granular alkoxide prepared by fluidized-bed spraying; dustless during packaging and transfer operations; nontoxic; corrosion resistance; nonflammable; material handling; optical brighteners, UV absorbers and photoinitiators; food drugs
04/24/2003US20030078455 Intramolecular condensation in the presence of titanium tetrachloride or zirconium tetrachloride and a trialkylamine to produce an alpha-alkoxycarbonylated macrocyclic ketone which is hydrolyzed and decarboxylated; civetone
04/24/2003US20030078443 Preparing a polyalkylene oxide porogen by employing hydrosiylation or nucleophilic substitution or esterification or hydrogenolysis or carbonation
04/24/2003CA2464435A1 Synthesis of oxygen-substituted benzocycloheptenes, used as valuable intermediate products for producing tissue-selective oestrogens
04/23/2003EP1304321A2 Process for preparing 3-Hydroxyesters from epoxide derivatives