Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
03/2002
03/14/2002WO2001051447A3 Co-production of carboxylic acids and/or their esters
03/14/2002WO2001051446A3 Co-production of carboxylic acids and/or their esters
03/14/2002WO2001051442A3 Improved process for producing carboxylic acids
03/14/2002US20020032351 Process for the preparation of chiral isofluoroenes
03/14/2002US20020032349 Catalyst composition and process for making same
03/14/2002US20020032345 Reacting (meth)acrylic acid with an alkylene oxide; distillation conducted in water, dimethyl sulfoxide or acetonitrile due to a relative dielectric constant temperature that controls diester formation
03/14/2002US20020032338 Enantiomerically pure compounds by reacting water and carbocycle or heterocycle having an electrophilic center in the presence of an asymmetric tetradentate ligand complexed with a metal atom, which has a geometric shape
03/14/2002DE10043545A1 Verfahren zur Herstellung von Carbonsäureestern Process for the preparation of carboxylic acid esters
03/14/2002DE10041543A1 Novel acids and derivatives with terminal dioxo-ene structures, useful e.g. in production of polymers or pharmaceuticals, are obtained by photooxygenation ring-opening of furans, followed by reduction
03/14/2002CA2421018A1 Dihydroxy open-acid salt of simvastatin
03/13/2002EP1186609A2 Diphosphines
03/13/2002EP1186593A2 Process for the preparation of carboxylic esters
03/13/2002EP1186592A1 Production of methacrylates
03/13/2002EP1185505A1 Method of producing methoxyimino acetic amide
03/13/2002EP1185499A1 Method of producing alkoxycinnamic acid ester
03/13/2002EP1185498A2 Synthesis of optically active cyclohexylphenylglycolic acid and its esters
03/13/2002EP1185495A1 Catalyst for production of acetic acid or acetic acid and ethyl acetate, process for its production and process for production of acetic acid or acetic acid and ethyl acetate using it
03/13/2002EP1185493A1 Quinones for treatment of diseases
03/13/2002CN1340077A Glycolysis process for recycling of post-consumer PET
03/13/2002CN1339984A Nickel calalyst on transition alumina
03/13/2002CN1339431A Process for preparing DL-serine
03/13/2002CN1339430A Single bath producing method for caffeic acid ester derivatives
03/13/2002CN1339423A Purifying method for carbon dioxide containing air flow
03/12/2002US6355844 Catalytic reaction of vinyl ester with ortho ester to form derivative
03/12/2002US6355837 Titanium, zirconium, hafnium halide with iridium as catalyst
03/12/2002US6355831 Catalytic reaction of formylvaleric ester using noble metal as catalyst
03/12/2002US6355830 Ester interchange in the presence of solvents a dicarboxylic acid
03/12/2002US6355822 Process for selective reduction
03/12/2002US6355817 Reacting alcohol with carbonyl-like compound in presence of first amount of first esterification catalyst, adding second amount of second esterification catalyst to reaction mixture at some time after initiation of first step
03/12/2002US6355711 Ketone ester as plasticizer
03/12/2002US6355595 Group 5 metal promoted iridium carbonylation catalyst
03/12/2002CA2201729C Selective process for the deacylation of acylated compounds
03/11/2002CA2357261A1 Diphosphines
03/07/2002WO2002018476A2 Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters
03/07/2002WO2002018471A2 Polyester precursor purification process
03/07/2002WO2002018328A1 Process for reacting carboxylic acids and esters
03/07/2002WO2002018319A1 Process for making n-aryl-anthranilic acids and their derivatives
03/07/2002WO2002018317A2 Production of tertiary esters from ketenes and tertiary alcohols
03/07/2002WO2002018314A1 Process for preparation of fluorinated ketones
03/07/2002WO2001051451A3 Methods for manufacturing betulinic acid
03/07/2002WO2001049248A3 Method of crystallizing and purifying alkyl gallates
03/07/2002US20020028975 Process for preparing retiferol derivatives
03/07/2002US20020028966 Process for the preparation of fluid bed vinyl acetate catalyst
03/07/2002US20020028965 Integrated process for the production of vinyl acetate and/or acetic acid
03/07/2002US20020028964 Process for the preparation of methacrylate esters
03/07/2002US20020028963 Reacting dicarboxylic or polycarboxylic acids/anhydrides with alcohols, removing water by azeotropic distillation and replacing with alcohol
03/07/2002US20020028961 Transesterification process
03/07/2002US20020028960 Methods for manufacturing betulinic acid
03/07/2002US20020028872 Polymer gel containing a basic functional group derived from at least one compound selected from the group consisting of tertiary amine, quaternary aammonium salt, cyclic amine compounds and sulfides
03/07/2002US20020027067 Lowering the inner oxygen concentration of column handling easily polymerizable compound containing solution below the limit of oxygen concentration by supplying an inert gas
03/07/2002DE10041903A1 New aconitic acid derivatives useful as ultraviolet absorbers, fluorescent dyes, marker dyes, optical brighteners and intermediates for pharmaceutical, veterinary or plant protection agents
03/07/2002DE10041618A1 Verfahren zur Herstellung von alpha-Fluor-malonsäuredialkylestern A process for preparing alpha-fluoro-dialkyl malonates
03/07/2002CA2420003A1 Process for making n-aryl-anthranilic acids and their derivatives
03/07/2002CA2419438A1 Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters
03/06/2002EP1184362A1 Phenol derivatives, process for preparation of the same and use thereof
03/06/2002EP1184076A1 Polymer-supported lewis acid catalyst
03/06/2002EP1183323A1 Method for purifying natural oils, device suitable therefor and use of said products
03/06/2002EP1183226A1 New esters and ester compositions
03/06/2002EP1183225A1 Method for producing fatty acid esters of monovalent alkyl alcohols and use of the same
03/06/2002EP1066240B1 Method for producing acrylic acid and acrylic acid esters
03/06/2002EP0695295B1 3-(hetero)aryl carboxylic acid derivatives, methods of preparing them and intermediates used in their preparation
03/06/2002CN1339022A Production of esters
03/06/2002CN1080254C Process for working up residues from raw ester distillation in preparation of dimethyl terephthalate (DMT)
03/05/2002US6353141 Derived from the metathesis of steam cracking c5 cut, hydroformylation to produce aldehydes; alcohols from hydrogenation, amines from amination, esters from oxidation
03/05/2002US6353132 Producing esters and acids from lower alkanols; acetic acid and methyl acetate from methanol and carbon monoxide; solid phase catalyst to reduce or eliminate the handling losses of the catalyst and reduces the need for catalyst recovery
03/05/2002US6353130 Method for continuous production of (meth)acrylic alkyl esters
03/05/2002US6353122 Method for epoxidation of 3-methylenecyclopropanes
03/05/2002CA2356469A1 Process for preparing carboxylic esters
03/05/2002CA2027209C Process for the preparation of substituted phenols
02/2002
02/28/2002WO2002016305A1 METHOD FOR PRODUCING β KETOENOL ESTERS
02/28/2002WO2002016304A1 Method for producing alpha fluoromalonic acid dialkyl esters
02/28/2002WO2001074741A3 Catalytic asymmetric desymmetrization of meso compounds
02/28/2002WO2001051444A3 Co-production of carboxylic acids and/or their esters
02/28/2002US20020026075 Preparation of carboxylic esters catalyzed by a sulphonic acid
02/28/2002US20020026074 Process and intermediate compounds for the preparation of pyrrolidines
02/28/2002US20020026073 Process and intermediate compounds for the preparation of pyrrolidines
02/28/2002US20020026072 From tri-O-acetyl-D-erythro-4-pentulosonic acid esters
02/28/2002US20020026071 From tri-O-acetyl-D-erythro-4-pentulosonic acid esters
02/28/2002US20020026070 Esterification with methanol, in the presence of a catalyst consisting of an alkyl benzene sulfonic acid with an alkyl radical containing from 8 to 16 carbon atoms, preferably from 10 to 13 carbon atoms.
02/28/2002US20020026067 Titanium halides, sulfonates or diolates
02/28/2002US20020025906 Process for producing carbonyl or hydroxy compound
02/28/2002DE10040726A1 Cycloaliphatisch-aromatische Diphosphine und ihre Verwendung in der Katalyse Cycloaliphatic-aromatic diphosphines and their use in catalysis
02/27/2002EP1182189A2 Process for recovering butyl acrylate substantially free from acrylic acid
02/27/2002EP1182188A2 Method for producing carboxylic acid tertiary alkyl ester
02/27/2002EP1181267A1 Halogen compounds
02/27/2002EP1181264A1 Method for producing 2,2,4,4-tetra-substituted 1,3,5-cyclohexanetriones
02/27/2002EP1181096A1 Esterification catalysts
02/27/2002CN1337967A Synthesis of polyol fatty acid poleysters
02/27/2002CN1337391A Phosgene process of synthesizing acetylsalicylate derivatives for medicine
02/27/2002CN1337389A Cis-5,9,12-octade trienic acid derivative and its prepn
02/27/2002CN1337387A Method for preparing novel phenol compound divirated from dialkoxy acetaldehyde
02/27/2002CN1337274A Prepn. of sulfonic acid built matter and lower alkyoxycarbonyl (methyl) acrylate
02/26/2002US6350924 Method for producing 1,4-butanediol
02/26/2002US6350901 Process for the production of vinyl acetate
02/26/2002US6350900 Reaction of ethylene, oxygen and acetic acid in the presence of catalyst with porous support
02/26/2002US6350899 Process for the esterification of unsaturated carboxylic acids with unsaturated alcohols with avoidance of blackening and precipitation
02/26/2002US6350898 Esterification of malonic acid salt with alkyl halide
02/26/2002US6350897 Oxidation of 2,2,6-trimethylcyclohexane-1,4-dione; sulfonation; acylation
02/26/2002US6350896 Polyaniline salts with hydrochloric acid or carboxylic acids
02/26/2002US6350895 Reaction of dialkyl ester with 1,3-propanediol