Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
10/1989
10/25/1989EP0338686A2 Pyrimidinone derivatives
10/25/1989EP0338595A1 Hydroxyphenylthioalkylketoalcohols
10/25/1989EP0338585A2 Polyperfluoroaminoethers
10/25/1989EP0338530A2 Fluorine-containing polyether and nonionic surfactant comprising the same
10/25/1989EP0338427A2 Process for the preparation of esters olefinic unsaturated carboxylic acids with a terminal ester group
10/25/1989EP0338387A1 New process for the preparation of oxalyl- and oxamyl-hydrazides
10/25/1989EP0338386A1 New method of preparation of oxalic acid esters and amides
10/25/1989EP0338306A2 Halogen-substituted phenoxybenzyl compounds
10/25/1989EP0227826B1 Novel vitamin d analogues
10/25/1989CN1036575A "bis-(hydroxymethyl) cyclobutyl purines and pyrimidines
10/25/1989CN1036561A Process of preparing trifluoromethylvinyl derivatives starting with appropriate halogenovinyl derivatives
10/25/1989CN1036558A Gas-phase fluorination process
10/24/1989US4876409 Thin bed cofeed reactors for methane conversion
10/24/1989US4876407 Continuous dehydrochlorination of 2,3,4-trichlorobutene/1-/ in water miscible solvent with alkali metal hydroxide
10/24/1989US4876406 Using hydrofluoric acid and catalyst complex of chromium and aluminum phosphate
10/24/1989US4876405 Process for preparing fluoroethylenes and chlorofluoro-ethylenes from chlorofluoroethanes
10/24/1989US4876401 Process for the preparation of alkanediols
10/24/1989US4876393 β-fluoroacyl-β-halovinyl alkyl ethers
10/24/1989US4876389 Process for the production of organic polysulphides and catalyst system for its use
10/24/1989US4876383 Amino acid derivatives, their production and use in preparing carbapenem and carbapenam compounds
10/24/1989US4876381 Naphthalene derivatives possessing a retinoid-type action, processes for their preparation, and medicinal and cosmetic compositions containing these derivatives
10/24/1989US4876378 Recovery of dialkyl naphthalene-2,6-dicarboxylates from naphthalene-2,6-dicarboxylic acid-containing polyesters
10/24/1989US4876376 Halogen-fluorine exchange in hydrofluoric acid without catalyst; plant safening agents
10/24/1989US4876370 1,3,5-nonatriene derivatives, their preparation and their use
10/24/1989US4876345 Indene compounds
10/24/1989US4876299 For polymeric lacquers
10/24/1989US4876286 Hydroformylation
10/24/1989US4876284 Central nervous system disorders
10/24/1989US4876282 1-Phenylalkylamines as selective serotonin uptake inhibitors
10/24/1989US4876269 Analgesics, diuretics
10/24/1989US4876081 Coupling to proteins, polypeptids; diagnostic and therapy compounds
10/24/1989US4876047 Reacting nonolefinic compound anhydrously with sulfonating agent, then with nitrile and water
10/24/1989US4876029 Substituted and unsubstituted ring-bridged para-oligophenylene UV laser dyes
10/24/1989US4876026 Ferroelectric liquid crystals
10/24/1989US4875986 Photopoymerization of 1,4-diazidobenzene
10/19/1989WO1989009763A1 Process for preparing 2-bromoethyl acetate
10/19/1989WO1989009762A1 Transesterification of alkoxyesters
10/18/1989EP0337937A2 Ethoxylate and carboxylate derivatives of alkyl catechols
10/18/1989EP0337898A1 Process for the purification and isolation of isocyanate condensates by extraction with liquid or supercritical CO2
10/18/1989EP0337862A1 1-halo-(Z,E) 7,10-dodecadiene and a method for the production thereof
10/18/1989EP0337803A1 Catalyst recycle in the carbonylation of isobutylphenylethanol to ibuprofen
10/18/1989EP0337779A2 Process for the production of acrylonitrile
10/18/1989EP0337665A2 Process for preparing 4-demethoxydaunomycinone
10/18/1989EP0337572A2 Process for the preparation of alkanediols
10/18/1989EP0337489A2 New derivatives of phenyl 3-phenylbutyrate, a method of obtaining new derivatives of phenyl 3-phenylbutyrate and the application of new derivatives of phenyl 3-phenylbutyrate for liquid crystalline mixtures
10/18/1989EP0337434A2 Process for preparing diphenol monoesters substituted with aryl groups
10/18/1989EP0337305A1 Process for the preparation of 1-alpha,25-dihydroxy-vitamin D2 and the 24-epimer thereof
10/18/1989EP0337260A1 Process for the production of enol ethers and their use in the preparation of aldehydes
10/18/1989EP0337239A2 Use of alkaline earth salts of polycarboxylic acid monoesters as alkoxylation catalysts
10/18/1989EP0337210A1 Process for the preparation of carboxylic-acid halides
10/18/1989EP0337186A1 Preparation of promoted silica catalysts
10/18/1989EP0337127A1 Process for the preparation of hexafluor propene
10/18/1989EP0337083A2 Process for the preparation of esters of omega enoic acids
10/18/1989EP0206054B1 Method for the production of carboxylic acids
10/18/1989EP0198351B1 Catalytic oxidation with n-hydroxydicarboxylic acid imides
10/18/1989EP0173753B1 6-substituted prostaglandin e1's and process for their preparation
10/17/1989US4874901 Process for the production of polyfluorinated ethers
10/17/1989US4874900 Condensing citral with ketone using lithium hydroxide catalyst
10/17/1989US4874898 Antiandrogens
10/17/1989US4874896 Process for the production of alkylamines
10/17/1989US4874893 Using sulfuric acid and specified conditions
10/17/1989US4874892 Process for the preparation of 6-hydroxynaphthalene-1-carboxylic from 1-aminomethylnaphthalene-6-sulphonic acid
10/17/1989US4874890 Direct substitution from heavy water or deuterium gas in presence of platinum group catalyst
10/17/1989US4874889 Isomerization of 2-pentenoates to 3-pentenoates
10/17/1989US4874888 Vapor phase reaction of carbon monoxide with nitrite ester using supported platinum group-iron catalyst
10/17/1989US4874887 One step condensation of organic acid, aldehyde, water soluble cyanide using phase transfer catalyst, inorganic base, sulfonyl compound
10/17/1989US4874885 Reacting phenols with formaldehyde and mercaptans in presence of base
10/17/1989US4874860 Reacting a biuret with a dialkyl carbonate
10/17/1989US4874850 Pharmaceutical preparations
10/17/1989US4874847 Process for the diazotisation of primary aromatic amines which are sparingly soluble in water
10/17/1989US4874786 Agricultural
10/17/1989US4874780 Anticancer compounds
10/17/1989US4874777 Antiasthmatics
10/17/1989US4874752 Benzoquinone derivatives and production thereof
10/17/1989US4874557 Process for the preparation of perfluorinated carbonyl fluorides
10/17/1989US4874556 Using sodium sulfate
10/17/1989US4874554 Quaternary ammonium compounds
10/17/1989US4874552 Mixing with hydrogen peroxide and alkali metal carbonate
10/17/1989US4874545 Chiral esters of α-substituted phenylalkanoic acids and mesogenic hydroxy compounds, and their use as a doping substance in liquid crystal phases
10/17/1989US4874544 Ferroelectric liquid crystals
10/17/1989US4874473 Separation of diastereomers by extractive distillation
10/17/1989CA1262366A1 Extraction of aromatics with ethyl acetoacetate
10/17/1989CA1262365A1 Extraction of aromatics with n-cyclohexyl-2- pyrrolidone
10/17/1989CA1262362A1 Process for the preparation of hydrocarbons
10/17/1989CA1262361A1 Process for the preparation of methanol in liquid phase
10/17/1989CA1262360A1 Process for separating isomers of toluenediamine
10/17/1989CA1262359A1 Continuous preparation of mixtures containing cyclohexyl hydroperoxide, cyclohexanol and cyclohexanone
10/17/1989CA1262357A1 N-hydroxyl protecting groups and process for the preparation of 3-acylamino-1-hydroxy-2-azetidinones
10/17/1989CA1262354A1 Improved sealing process and sealing agents for aluminum
10/12/1989EP0304424A4 WATER SOLUBLE COMPLEX OF A POLY(VINYLPYRROLIDONE) COPOLYMER AND -g(a)-METHYL-(2-METHYLPROPYL)BENZENE ACETIC ACID.
10/11/1989EP0336898A2 Substituted aryl or heteroaryl diones
10/11/1989EP0336823A1 Process for the production of olefines from natural gas
10/11/1989EP0336818A2 Process for refining amino acids
10/11/1989EP0336568A1 Process for the bromination of alkyl benzenes
10/11/1989EP0336567A1 Process for the bromination of alkyl arenes
10/11/1989EP0336564A1 Process for separating methyl derivatives of naphthalene according to crystallization under pressure
10/11/1989EP0336535A1 Gas separation by composite solvent-swollen membranes
10/11/1989EP0336522A2 Thromboxane antagonists for use in the treatment of hormone-dependent neoplasias
10/11/1989EP0336368A2 N2-(1-carboxy-3-phenylpropyl)-L-lysine derivative and process of producing lysinopril using the compound
10/11/1989EP0336361A1 Sulfur-containing acryl oligomer composition
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