Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
11/2002
11/05/2002US6476254 Alkoxylated fatty alcohol dicarboxylic acid esters
11/05/2002US6476253 Process for preparing monoacetylated hydroquinone compounds
11/05/2002US6476162 Method for preventing easily polymerizing substance from polymerization and method for production of (meth) acrylic acid or ester thereof
11/05/2002US6475133 Methods for making 2-(ω-alkoxycarbonylalkanoyl)-4-butanolide, ester of omega-hydroxy-(ω-3)-ketoaliphatic acid, and derivatives thereof
10/2002
10/31/2002WO2002085838A1 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
10/31/2002WO2002085837A1 Process of preparing halogenated esters
10/31/2002WO2002085836A1 Binaphtol derivative and process for producing the same
10/31/2002WO2002085835A1 Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same
10/31/2002WO2002085829A1 Process for production of dimers of aromatic monohydroxyl compounds
10/31/2002WO2002048072A3 Organic reactions with co generating materials
10/31/2002WO2002036261A3 Catalyst comprising a chiral cationic metal-ligand complex immobilised on a mesoporous alumino-silicate support, its preparation and use in asymmetric hydrogenation
10/31/2002WO2002030415A9 Pravastatin sodium substantially free of pravastatin lactone and epi-pravastatin, and compositions containing same
10/31/2002WO2000034220A3 Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization
10/31/2002US20020161266 Performing a one-pot organic reaction, which includes carbon monoxide (CO) as reactant and does not use of an external gas source, by contacting a non-catalyzing CO releasing compound such as a metal carbonyl with an energy source
10/31/2002US20020161227 By reacting a phosphazenium compound with Q as counteranion with a halogenated aromatic compound to substitute at least one halogen atom with Q
10/31/2002US20020160192 Attrition resistant inorganic microspheroidal particles
10/31/2002EP1144353A3 Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization
10/30/2002EP1253156A2 High activity ruthenium or osmium metal carbene complexes for olefin metathesis reactions and synthesis and application thereof
10/30/2002EP1253135A1 Asymmetric copper complex and cyclopropanation reaction using the same
10/30/2002EP1253133A1 Process of preparing halogenated esters
10/30/2002EP1253130A2 Method for producing 3-l-menthoxypropane-1,2-diol
10/30/2002EP0888268B1 Method for the cyclotrimerization of alkynes in aqueous solutions
10/30/2002CN1377292A Recovery process for volatile compounds from solids in aqueous solution
10/30/2002CN1093426C Distilling apparatus and distilling method
10/29/2002US6472557 Process for recycling polyesters
10/29/2002US6472556 Catalyst and use thereof in the production of vinyl acetate
10/29/2002US6472555 Acetylating in a single step an aliphatic, acyclic, cyclic, heterocyclic, alpha,beta-unsaturated and aromatic alcohols with acetic acid using reusable natural montmorillonite/ metal ion exchanged clay catalyst in an organic solvent
10/29/2002US6472554 Continuous preparation of alkyl esters of (meth) acrylic acid
10/29/2002US6472544 Process for the preparation of optically active 2-[6-hydroxymethyl)-1,3-dioxan-4yl]acetic acid derivatives
10/29/2002US6472345 Titanium halides, sulfonates or diolates
10/24/2002WO2002083619A1 Distillative recovery of tertiary butyl acetate
10/24/2002WO2002083618A1 Continuous hydroformylation process for forming an aldehyde
10/24/2002WO2002083617A1 Continuous process for producing an aldehyde
10/24/2002WO2002083613A1 Continuous hydroformylation process
10/24/2002WO2002083605A1 Continuous hydroformylation process
10/24/2002WO2002083604A1 Continuous hydroformylation process for producing an aldehyde
10/24/2002WO2002083299A2 Palladium catalyst and processes for using the same
10/24/2002WO2002022262A3 Rhenium alkylidene catalysts fixed on a carrier and used for the metathesis of olefins
10/24/2002US20020156327 Method for producing 3-l-menthoxypropane-1,2-diol
10/24/2002US20020156317 Process for the preparation of esters of (meth)acrylic acid
10/24/2002US20020156305 Ester interchange; separation
10/24/2002US20020156304 Catalytic reacting acetylene with epoxide
10/24/2002US20020156295 Coordination catalyst containing ligand
10/24/2002US20020156289 Synthesis of epothilones
10/24/2002DE10143565A1 Production and/or processing of polymerizable compounds using a fluid ring vacuum pump having a sealing liquid comprising material from the production and/or processing of the polymerizable compound.
10/24/2002DE10118232A1 1,3 Diol compounds, useful as comonomers in dental applications, are prepared by hydrolysis of the corresponding ketal in the presence of an acid ion exchange medium in a polar solvent and water.
10/24/2002CA2412307A1 Method for the manufacture of acrylic or methacrylic acid
10/23/2002EP1251135A2 High activity ruthenium or osmium metal carbene complexes for olefin metathesis reactions and synthesis thereof
10/23/2002EP1064243B1 Coupling reactions with palladium catalysts
10/23/2002CN1093126C Improved process for the synthesis of protected esters of (s)-3,4-dihydroxytubyric acid
10/23/2002CN1093001C Heterogeneous bimetallic palladium-gold catalyst for vinyl acetate production
10/23/2002CA2382863A1 Method for producing 3-l-methoxypropane-1,2-diol
10/22/2002US6469224 Reacting a phosphazenium compound with a halogenated aromatic compounds, especially chlorinated aromatic compounds
10/22/2002US6469203 Method for depolymerizing polymethylmethacrylate
10/22/2002US6469202 Method for disposal of solid catalyst
10/22/2002US6469201 Allowing a liquid partly or wholly consisting of the alcohol used for the esterification to act on the deposits, fouled apparatus parts or on the surfaces of the apparatus parts
10/22/2002US6469200 Process for producing 2-alkylidene-4-bromoacetoacetic acid ester
10/22/2002US6469198 Chiral copper complex catalyst composition and asymmetric production process using the same
10/17/2002WO2002081607A1 Processes for producing alkyl ester of fatty acid
10/17/2002WO2002081423A1 Method for producing hydroxyalkyl carboxylic acid esters
10/17/2002US20020151747 Method for the manufacture of acrylic or methacrylic acid
10/17/2002US20020151744 Kinetic resolutions of chiral 2-and-3-substituted carboxylic acids
10/17/2002US20020151742 Process for producing vitamin a ester
10/17/2002US20020151741 Process for producing cyclopropanecarboxylates
10/17/2002US20020151728 Production methods of 5-phthalancarbonitrile compound and an intermediate therefor
10/17/2002US20020151594 Method to treat chronic heart failure and/or elevated cholesterol levels using 3,5-diiodothyropropionic acid and method to prepare same
10/17/2002DE10164041A1 Verfahren zur Herstellung von Vitamin-A-ester A process for producing vitamin A ester
10/17/2002DE10118308A1 Verfahren zur Herstellung von Hydroxybenzoesäurebenzylestern A process for preparing Hydroxybenzoesäurebenzylestern
10/17/2002DE10117273A1 Production of hydroxyalkyl carboxylate ester for use, e.g. as raw material for varnish, involves reacting carboxylic acid, e.g. acrylic acid, with alkylene oxide in presence of iron-containing multi-metal cyanide catalyst
10/16/2002EP1249846A2 Polyalkylene oxide prorgens having hyper-branches and low dielectric-constant insulators using them
10/16/2002EP1249445A1 Continuous process for producing an aldehyde
10/16/2002EP1249444A1 Continuous hydroformylation process for forming an aldehyde
10/16/2002EP1249443A2 Process for the production of hydroxybenzoic acid benzyl esters
10/16/2002EP1249441A1 Continuous hydroformylation process
10/16/2002EP1249439A1 Continuous hydroformylation process
10/16/2002EP1249438A1 Continuous hydroformylation process for producing an aldehyde
10/16/2002EP1248766A2 Methods for manufacturing betulinic acid
10/16/2002EP1248764A2 Novel methods for cross-metathesis of terminal olefins
10/16/2002EP1248763A2 Aromatic di-keto derivatives as glucose-6-phosphate translocase inhibitors
10/16/2002CN1374965A Hydroformylation using multidentate phosphite ligands
10/16/2002CN1374939A Process for the production and purification of N-butyl acrylate
10/16/2002CN1374938A Process for the production and purification of N-butyl Acrylate
10/16/2002CN1374936A Sulfur containing promoter for alkanes oxidative dehydrogenation processes
10/16/2002CN1374935A Hydroformylation process utilizing multidentate phosphite ligands
10/16/2002CN1374886A Hydroformylation of unsaturated compounds using polymeric phosphite ligands
10/16/2002CN1374289A High-pressure waste TA converting process of preparing DMT
10/16/2002CN1374287A Process for producing 2.7-dimethyl-2,4,6-sarohornene aldehyde mono aldehyde acetal
10/16/2002CN1092638C Process for producing diethyl malonate
10/16/2002CN1092635C Recovery of light useful products from distillation residues in producing process of acrylic acid and its ester
10/16/2002CN1092627C Process for preparing 4-tert-butylcyclohexanol and 4-tert-butylcyclohexyl acetate
10/16/2002CN1092538C Catalyst for production of ethylene acetate
10/15/2002US6465683 Reacting butadiene with saturated aliphatic monocarboxylic acid to form mixture of butenyl esters, separating then hydrogenating in presence of catalyst
10/15/2002US6465682 Catalytically reacting carboxylic acid and alkylene oxide wherein the reaction is terminated by introducing cool water
10/15/2002US6465681 Production process for hydroxyalkyl (meth)acrylate
10/15/2002US6465680 Process for preparing malonate derivatives or β-keto esters from epoxide derivatives
10/15/2002US6465664 Asymmetric 1,4-reductions of and 1,4-additions to enoates and related systems
10/15/2002CA2261039C Methods for producing polyol fatty acid polyesters using atmospheric or superatmospheric pressure
10/10/2002WO2002079139A1 Conjugated unsaturated glyceride mixtures and a method for producing the same
10/10/2002WO2002079138A1 A process for preparation of an ester using a polyanaline salt as catalyst
10/10/2002WO2002079136A1 Enantiomerically selective cyclopropanation