Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
12/1989
12/12/1989US4886904 Polyprenyl composition or compounds and process for the production thereof
12/12/1989US4886903 Process for production of prostaglandins D2
12/12/1989US4886902 Process for the preparation of isocyanates and their use for the preparation of polyisocyanates containing ester groups
12/12/1989US4886901 Method for purifying a crude dimethyl naphthalene dicarboxylate
12/12/1989US4886898 Intermediates for circulation-active substituted aminomethyl-5,6,7,8-tetrahydronaphthyloxy-acetic acids
12/12/1989US4886891 Process for preparing 1,1-disubstituted ethylene derivative by reaction of lead with a carbinol derivative
12/12/1989US4886889 Process for recovery of an amino acid from aqueous mixtures thereof
12/12/1989US4886879 Process for the preparation of trifluorodichloroethyl-substituted acids and zinc compounds
12/12/1989US4886835 Alkadiene derivatives, their preparation, and pharmaceutical compositions containing them
12/12/1989US4886833 Fungicides, pesticides
12/12/1989US4886832 Fungicidal benzaldoxime derivatives
12/12/1989US4886823 Furazanylurea acaricides
12/12/1989US4886788 Cyclodextrin clathrates of carbacyclin derivatives and their use as medicinal agents
12/12/1989US4886622 Optically active liquid crystal compound having cyano group
12/12/1989US4886610 Lubricant compositions, novel glucamine derivatives and complex compounds containing same
12/12/1989CA1263874A1 Processes for the hydrolysis of alkylene oxides using organometalates
12/12/1989CA1263873A1 Process for the production of nitrobenzene
12/12/1989CA1263872A1 Preparation of ketones by isomerization of aldehydes
12/12/1989CA1263871A1 Hydroformylation process
12/12/1989CA1263869A1 PROCESS FOR PREPARING .alpha.-HYDROXYACIDS
12/12/1989CA1263862A1 Derivatives of amino-5 pentanenitril and the process for their preparation
12/06/1989EP0345243A2 Asymmetric hydrogenolysis of epoxides
12/06/1989EP0345182A1 Process and apparatus for the fabrication of olefins and diolefins by steam cracking of hydrocarbons, controlled by a system comprising an infrared spectrophotometer
12/06/1989EP0345083A2 Process for recovering methacrolein
12/06/1989EP0345013A2 1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl) benzenes
12/06/1989EP0344963A2 Process for producing oxazolone derivatives
12/06/1989EP0344935A2 Photo-assisted solution phase direct fluorination process improvement
12/06/1989EP0344835A1 Narrow range alkanol alkoxylates
12/06/1989EP0344816A1 Iodine-labelled pyrethrinoids, process and intermediates for their preparation and their use in radioimmuno assays
12/06/1989EP0344746A2 An improved process for the minimization of racemization in the preparation of optically active ((aryloxy) phenoxy) propionate herbicides
12/06/1989EP0344737A1 Process for purifying alpha-substituted acetic acids
12/06/1989EP0344733A2 Novel antioxidant-peroxides and their use
12/06/1989EP0344675A2 Method for the production of selegiline hydrochloride
12/06/1989EP0344585A1 Acetals and process for their production
12/06/1989EP0344557A2 Liquid crystal components with a trimethylenoxy group
12/06/1989EP0344494A1 Process for production of 1,1,1-trifluoro-2,2-dichloroethane
12/06/1989EP0344419A2 Method for preparing fatty acid or hydroxy-fatty acid esters of isopropylidene derivatives of a polyglycerol
12/06/1989EP0344418A1 Process for the preparation of non-ionogenic tensides
12/06/1989EP0221106B1 Process of preparing catalysts for oxydehydrogenation of ethane to ethylene
12/06/1989EP0217240B1 Chiral esters of mesogenic-carboxylic acids, process for their preparation and their use as doping agents in liquid crystal phases
12/06/1989EP0131051B1 Quaternary ammonium compounds and method for their manufacture
12/05/1989US4885418 Treating with a water-containing anion exchanger in the oh form
12/05/1989US4885415 Hydrogenation, dechlorination, catalysis
12/05/1989US4885409 Process for the hydrogenation of bis-phenols
12/05/1989US4885408 Chlorination of ortho-substituted phenols
12/05/1989US4885404 High yields
12/05/1989US4885403 Stirring hydroxy aromatic compound with propargyl halide; etherification
12/05/1989US4885397 Process for the preparation of cyclic ketones by isomerization of epoxides
12/05/1989US4885392 Derivatives of 1,3-bissubstituted 2-propanol containing amino groups, methods for their preparation and their use
12/05/1989US4885388 Chemical intermediates for the preparation of herbicides and plant growth regulators
12/05/1989US4885385 Intense, colorfast, blue dyes for hydroxy- or polyamido-containing fibers
12/05/1989US4885383 Acid catalysis of methanol and mono or diacid below carboxylate boiling point
12/05/1989US4885382 Ester interchange in the presence of a basic catalyst; purity, nondiscoloring
12/05/1989US4885372 Intermediates for the preparation of prostaglandin derivatives
12/05/1989US4885368 Semiconductors, photoconductors, electrodes, batteries
12/05/1989US4885363 1-substituted-1,4,7-triscarboxymethyl-1,4,7,10-tetraazacyclododecane and analogs
12/05/1989US4885348 Urea-modified isocyanates
12/05/1989US4885322 Novel ammonium salt useful as modifiers for rubber
12/05/1989US4885112 Surface active secondary amidoamino acid or salt compounds
12/05/1989CA1263672A1 Reforming process for enhanced benzene yield
12/05/1989CA1263671A1 Process for the production of synthesis gas
12/05/1989CA1263668A1 Liquid 2-hydroxy-methylthiobutyric acid and process for the preparation thereof
12/05/1989CA1263667A1 Process for the preparation of esters from trifluoroacetic or trichloroacetic acid
12/05/1989CA1263666A1 Preparation of trifluoroacetate methyl
12/05/1989CA1263664A1 Diesters
12/05/1989CA1263656A1 Aryloxycycloalkanolaminoalkylene aryl ketones
12/05/1989CA1263650A1 Substituted piperazine-1, 4-naphthalenediones
11/1989
11/30/1989WO1989011478A1 Ruthenium-catalyzed production of cyclic sulfates
11/30/1989WO1989011471A1 Recovery of dialkyl naphthalene-2,6-dicarboxylates from naphthalene-2,6-dicarboxylic acid-containing polyesters
11/30/1989WO1989011470A1 Dihalogeno-3,3 fluoro-2 propenols-1, preparation method and utilization for the synthesis of fluoro-2 acrylic and dihalogeno-3,3 fluoro-2 acrylic acids and their derivatives
11/29/1989EP0344113A2 Substituted alpha-pyrones and naphthoquinones
11/29/1989EP0344109A2 Substituted naphthacene-5,12-diones and their use
11/29/1989EP0344043A1 Process for the preparation of citral
11/29/1989EP0343916A2 Purification of diphenyl phthalates
11/29/1989EP0343901A2 Method and apparatus for recovering high purity toluene, hexane titanium tetrachloride and tetrahydrofuran from mixtures
11/29/1989EP0343812A1 Process for preparing trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters
11/29/1989EP0343798A1 Preparation of aromatic compounds and derivatives thereof
11/29/1989EP0343791A1 Stability-improved trioxane composition
11/29/1989EP0343747A2 Benzoyl and ketone peroxide compositions
11/29/1989EP0343743A2 Improved preparation of 3,3-diphenylacrylic acid amides
11/29/1989EP0343707A1 Process for the hydrogenation of chlorofluoroalkenes
11/29/1989EP0343598A1 Preparation of 4-pentenoates by isomerization
11/29/1989EP0343583A2 A process for purifying methyl methacrylate
11/29/1989EP0343512A2 Process for the oxidation of hydrocarbons utilizing partitioning of oxidizing gas
11/29/1989EP0343475A2 Process for producing neopentyl glycol
11/29/1989EP0343468A2 Method of producing E7, Z9-alkadien-1-ols and their hydroxy-protected derivatives
11/29/1989EP0343441A2 Fluorinated bis-aryloxy-substituted alkenes, method for their production an their application
11/29/1989EP0343437A1 Process for the preparation of cycloalkadienes
11/29/1989EP0343182A1 Alcohols with 3-methyl or 3,5-dimethyl groups, their production and their use as aromatics.
11/29/1989CN1037509A Novel photoactive compounds, processes for their production and inter-mediates therefor
11/29/1989CN1037502A Process for preparing cyclohexanol
11/29/1989CN1037501A Process for manufacture of vinyl chloride by conversion of acetylene with hydrogen chloride
11/29/1989CN1037499A Process for preparing p-xylene with at least 99.5% pureness
11/28/1989US4883916 Anticholesterol, antiarterioscelerosis
11/28/1989US4883912 Solvent extraction, salt formation, tertiary amine, oxygen containing solvent, sulfuric acid
11/28/1989US4883909 Liquid diphenylmetane diisocyanate compositions
11/28/1989US4883906 Recovering product before it cools or comes into contact with water
11/28/1989US4883904 Process for the preparation of ethyltrifluoroacetoacetate
11/28/1989US4883903 Novel procedure for the preparation of activated nitrosocarbamates
11/28/1989US4883902 By -product inhibition, ester interchange
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