Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
04/1996
04/23/1996US5510514 Reaction of acrylic or methacrylic acid with alkanol in the presence of sulfuric acid catalyst
04/23/1996US5510513 Fluorine containing diester of alkyl-or alkenylsuccinic acid, preparation thereof and magnetic recording medium
04/23/1996US5510512 Process for preparation of 2-(dialkoxymethyl)-carboxylic acid esters
04/23/1996US5510509 Preparation of esters of cyclopropane-1,1-dicarboxylic acid
04/23/1996US5510503 Bisphosphines for asymmetric hydrogenation catalysts
04/22/1996CA2161156A1 Process for the preparation of fatty acid-esterified propoxylated glycerin
04/18/1996WO1996011184A1 Colchicine derivatives and the therapeutical use thereof
04/18/1996WO1996011179A1 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium
04/18/1996DE4437043A1 Polyole und Verfahren zu deren Herstellung aus PET-Abfällen der PET-Produktion Polyols and methods for their preparation from PET waste PET production
04/18/1996DE4436385A1 Olefinically unsatd. cpds. prodn. by catalytic oxidn.-oxidative dehydrogenation
04/17/1996EP0706991A1 Process for the preparation of 1,4 butanediol mono(meth)acrylate by esterification of (meth)acrylic acid with 1,4 butanediol while obtaining an aqueous solution of non converted 1,4 butanediol
04/17/1996EP0706990A1 Process for the separation of a monoester of (meth)acrylic acid with a C4 to C6 alcanediol from an aqueous solution containing a monoester of (meth)acrylic acid with a C4 to C6 alcanediol and the C4 to C6 alcanediol
04/17/1996EP0706989A1 Process for the separation of diester of (meth)acrylic acid with C4 to C6 alcanediol from a mixture containing mainly the C4 to C6 alcanediol and the diester of (meth)acrylic acid with C4 to C6 alcanediol
04/17/1996EP0706988A1 Process for the production of methyl esters of fatty acids or ethyl esters of fatty acids and glycerine by transesterification of oil or fat
04/17/1996EP0706982A1 Method of separating optical isomers
04/17/1996EP0686140A4 Alkylation of alkyl salicylate using a long chain carbon feed
04/17/1996EP0523122B1 Esters and fluids containing them
04/17/1996CN1120631A Two-stage spirally-arranged seat for diesel cleaner
04/17/1996CN1120531A Process for the manufacturing of alkyl acrylates by direct esterification
04/16/1996US5508464 Nitrating of a 4,5-dibenzyloxyphenylacetonitrile, followed by debenzylation, hydrogenation and cyclization
04/16/1996US5508457 Esterification process
04/16/1996US5508444 Cyclic compounds
04/16/1996US5508435 Asymmetric hydrogenation of beta- or gamma-ketoesters and beta- or gamma-ketoamides
04/16/1996US5508394 Citric esters of polyhydroxy compounds and use thereof in detergents
04/16/1996US5508390 Diterpenes having immunomodulatory action
04/16/1996US5507973 Highly reactive zerovalent metals from metal cyanides
04/16/1996CA2011748C Method of preventing after-ripening or aging of fruit and vegetables
04/12/1996CA2160180A1 Co-feed carboxylic acids for production of vinyl esters
04/11/1996WO1996010556A1 Microbicides
04/11/1996WO1996010554A1 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof
04/11/1996CA2200597A1 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof
04/10/1996EP0705840A1 Process for the preparation of 0,0-dialkyl-4-phosphono-2-methyl-2-butenic acid alkylesters and 4-halogeno-2-methyl-2-butenic acid alkylesters with high content of E-isomers
04/10/1996EP0553205B1 Carbonylation of allylic alcohols and synthesis of an ambergris fragrance compound
04/09/1996US5506060 Method for making multidimensional ether or ester oligomers
04/04/1996WO1996010009A1 A method for controlling polyol ester conversion using near or mid-infrared analysis
04/04/1996WO1996010004A1 Process for the purification of 2,6-diisopropylphenol
04/04/1996DE4435332A1 Carboxylic acid prodn. by aldehyde oxidn.
04/03/1996EP0704537A2 Process for the resolution of a stereo-isomeric alcohol mixture
04/03/1996EP0704423A1 Process for the preparation of the tert-butyle ester of chloroacetic acid
04/03/1996EP0703896A1 Low pressure process for the manufacture of cyclohexanedicarboxylate esters
04/03/1996EP0703895A1 Preparation of dimethyl cyclohexanedicarboxylates
04/03/1996EP0703894A1 Low pressure process for the hydrogenation of dimethyl benzenedicarboxylates to the corresponding dimethyl cyclohexanedicarboxylates
04/03/1996EP0703885A1 Synthesis of substituted triphenylenes, useful as discotic liquid crystals
04/03/1996CN1119642A Polymer supported organotin catalyst
04/03/1996CN1119636A Inhibition of the polymerization of vinylaromatic or vinyliphatic compounds
04/02/1996US5504248 Preparation of halogenated compounds
04/02/1996US5504245 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof
04/02/1996US5504243 Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
04/02/1996US5504173 Chemical process
04/02/1996US5504122 Using base to neutralize acid formed by polymer degradation
04/02/1996US5504121 Depolymerization by transesterifying with boiling ethanediol, hydrolyzing to form ethanediol solution and terephthalic acid crystals
04/02/1996US5504112 Pyrethrinoid esters
03/1996
03/28/1996DE3790858C2 Selective alkylation of toluene
03/27/1996EP0703210A1 Process for producing 2,6-di-tert-alkylcyclohexanol
03/27/1996EP0702998A1 Process for preparing keto compounds
03/27/1996EP0555335B1 Process for the purification of hydroxypivalyl hydroxypivalate
03/27/1996CN1119433A Process for the carbonylation of acetylenically unsaturated compounds
03/26/1996US5502243 Forming ethylidene diacetate from dimethyl ether, methanol and synthesis gas
03/26/1996US5502240 Preparation of plasticizers without catalyst contamination
03/26/1996US5502239 Acidification to dissociate ligands and separation from glycol and metal ion
03/26/1996US5502216 Anticholesterol
03/26/1996US5501708 Process for tanning hides and compounds for use therein
03/21/1996DE3790859C2 Selective alkylation of toluene
03/20/1996EP0701991A1 Process for the preparation of lignin analogues and starting materials therefor
03/20/1996EP0701990A1 Hydrocarbonylation of dimethyl ether
03/20/1996EP0701547A1 The preparation of mixtures of (r)- and (s)-2-(4-alkanoylphenoxy)- or (r)- and (s)-2-(4-aroylphenoxy)propionic esters
03/20/1996EP0688243A4 Pretreatment of palladium-gold catalysts useful in vinyl acetate synthesis
03/20/1996EP0600958B1 Epoxy-ring opening products and method of producing
03/20/1996EP0594580B1 Olefinically unsaturated adducts of propylene on polyunsaturated fatty acids or fatty acid esters, process for producing them and their use
03/20/1996CN1118778A Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
03/14/1996WO1996007633A1 Phenylacetic acid alkyl esters
03/14/1996WO1996007632A1 Process for preparing a synthetic ester from a vegetable oil
03/14/1996DE19513493C1 Prodn. of poly-tetra:methylene-ether-glycol di:ester
03/14/1996CA2199422A1 Alkyl phenylacetates
03/14/1996CA2199375A1 Process for preparing a synthetic ester from a vegetable oil
03/13/1996EP0700885A1 Process for the introduction of fluoro-carbon substituents in organic compounds
03/13/1996EP0700375A1 Preparation of cyclopropane esters
03/13/1996EP0544880B1 Method of preparing diacetyl rhein
03/13/1996CN1118344A Processes for producing tetrafluorophthalic anhydride and fluorobenzoic acids
03/13/1996CN1031261C Extraction of ester from Job's tears
03/12/1996USRE35177 N-fluoropyridinium salt and process for preparing same
03/12/1996US5498751 Organotin catalyzed transesterification
03/12/1996US5498750 Process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid
03/12/1996US5498749 Process for separating cyclohexane dimethanol from dimethyl terephthalate
03/12/1996US5498746 Process for the preparation of 5,6-dihydroxyindole and intermediate compounds
03/12/1996US5498745 Antiallergen intermediates, inhibitors of leukotrienes, lipoxygenase inhibitors
03/12/1996US5498738 Method for the preparation of a novel a-ring precursor for taxoids and novel intermediates
03/12/1996US5498729 Prodrug compositions
03/09/1996CA2131654A1 Process for producing lower alkyl fatty acid esters
03/07/1996WO1996006823A1 Dicarboxylic acid ester derivatives with a diacyloxypropyl residue
03/06/1996EP0699652A2 Method for the preparation of butane-1,4-diol from maleic anhydride
03/06/1996EP0547124B1 Process for making e/z mixtures of 2-(6-alkyl-bicyclo- 3.3.0]-octane-3-ylidene)-acetic acid derivatives with a preponderant proportion of the e-isomers
03/06/1996EP0505408B1 Selective esterification of long chain fatty acid monoglycerides with medium chain fatty acid anhydrides
03/06/1996EP0494177B1 Continuous process for producing lower alkyl esters
03/06/1996CN1118159A Catalyst for aryl ester production and process for producing aryl ester therewith
03/06/1996CN1118158A Process for the production of plasticizer and polyol esters
03/06/1996CN1031189C Process for the producing DMT-intermediate product
03/05/1996CA1338121C Anticonvulsant and neuroprotective 2-aminoacetamide derivatives
03/01/1996CA2157151A1 Methylated herbicidal adjuvant
02/1996
02/29/1996WO1996006067A1 Use of phosphinic acid or organophosphonic acid in order to stabilise the colour of unsaturated c3-c5 carboxylic acid esters