Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
11/1990
11/28/1990CN1010587B Method for new salts preparation
11/28/1990CN1010583B Process for extracting paraffins from their mixtures with paraffinsulphonic acids
11/27/1990US4973771 Phase transfer catalysts
11/27/1990US4973768 Process for the preparation of unsaturated alcohols
11/27/1990US4973767 Cyclopropane derivatives
11/27/1990US4973765 Preparation of dien-1-ols, 9-hydroxydodec-10-enyl 1-tert-butyl ether and use thereof as an intermediate for synthesizing 8,10-dodecadienol
11/27/1990US4973763 Process for the preparation of polyglycerols
11/27/1990US4973762 Endcapping a polyfluoropolyether with iodide
11/27/1990US4973755 Antiestrogens
11/27/1990US4973753 Process for the preparation of hydroxybenzaldoxime o-ethers
11/27/1990US4973743 Process for the production of polybasic acid esters with recovery of boron trifluoride
11/27/1990US4973740 Process for producing tricyclodecanecarboxylic acid esters
11/27/1990US4973739 Reacting carboxylic acid amide with formic acid ester
11/27/1990US4973738 Liquid crystal compounds having naphthalene nucleus
11/27/1990US4973737 Organotin or organotitanate catalyst, by-product inhibition
11/27/1990US4973736 Dye, drug and herbicide intermediates
11/27/1990US4973735 Substituted trifluoroethyl esters of phenylacetic acid, processes for their preparation and their use as pesticides
11/27/1990US4973731 Di-t-butylphenyl alkyl and benzyl ether nitriles
11/27/1990US4973730 From nitrilotriacetic acid and formaldehyde, builders, bleach stabilizer
11/27/1990US4973726 Herbicidal 3-aminopyrazolin-5-ones
11/27/1990US4973720 Hydroquinone, hydrogen peroxide, iodine or iodide catalyst
11/27/1990US4973716 Process for preparing perfluoroethers by fluorination with elemental fluorine
11/27/1990US4973699 Cephem compounds and processes for preparation thereof
11/27/1990US4973696 Stereoselective process for preparing optically active alpha, beta-disubstituted carbonyl compounds
11/27/1990US4973686 Controlling reactivity of sulfur trioxide by adding an aliphatic ester
11/27/1990US4973431 Process for the recovery of methyl-branched, saturated C14 -C24 -f
11/27/1990US4973429 Organic materials with non-linear optical properties
11/27/1990CA1276946C Process for the preparation of an ethylene-ethane mixture
11/27/1990CA1276945C Process for the isomerization of dichlorotoluene
11/27/1990CA1276944C Method for preparation of polybromoacenaphthene and/or its condensate
11/27/1990CA1276942C Process for producing n-acyl-acyloxy aromatic amines
11/27/1990CA1276938C Arylacetic acid derivatives
11/27/1990CA1276937C Leukotriene antagonists
11/27/1990CA1276932C Process for the preparation of hydrogen levomepromazine maleate
11/27/1990CA1276931C2 Process and intermediates for making 16-phenoxy- and 16-substituted phenoxy-prostatrienoic acid derivatives and their stereoisomers
11/23/1990WO1990014328A1 Preparation of ultra high purity methyl acetate
11/22/1990EP0398774A1 Process for the preparation of brominated derivatives from alcohols
11/22/1990EP0398226A2 Process for producing acrylic ester
11/22/1990EP0398061A2 Method of preparing alpha-fluoroacrylic acid derivatives and 1,1-difluoro-2-halogenoethyl(halogeno)methyl-ketones
11/22/1990EP0298117B1 Process for the co-production of aromatic carboxylates and alkyl iodides
11/21/1990CN1010477B Process for extracting paraffins from mixture of alkane and alkanesutphonic acid
11/21/1990CN1010462B Process for producing fluidized catalyst for synthesis of methanol
11/20/1990US4972040 Process for the preparation of CHF2 OCHFCF3
11/20/1990US4971995 Inhibitors of monoamine oxidase, neurological disorders, aging, memory problems, schizophrenia, psydhaesthinia, parkinson*s disease
11/20/1990US4971979 Alkadiene derivatives, and pharmaceutical compositions containing them
11/20/1990CA1276745C Process for the preparation of a polyiscocyanate with a biuret group
11/20/1990CA1276653C Selective production of para-aromatics
11/20/1990CA1276652C Phenolic compound chlorination process
11/20/1990CA1276651C Process for preparing p-nitrophenol
11/20/1990CA1276646C Tantalum catalysts for the dimerization of olefins
11/20/1990CA1276641C Substituted p-hydroxyphenyl compounds
11/20/1990CA1276639C Aminobenzamide derivatives
11/20/1990CA1276630C Esterification process with calcium hydroxybenzyl phosphonate catalyst
11/20/1990CA1276618C Process for the preparation of n-alkylanilines
11/15/1990WO1990013533A1 The use of calcined hydrotalcites as catalysts for ethoxylating or propoxylating fatty acid esters
11/15/1990CA2016669A1 Process for producing acrylic ester
11/14/1990EP0397418A1 9,10-dihydrophenanthrene-2,7-dicarboxylic acid diesters, 7-Bromo-9,10-dihydrophenanthrene-2-carboxylic acid esters and a process for producing the same
11/14/1990EP0397290A1 Novel derivatives, their preparation and pharmaceutical composition containing them
11/14/1990EP0396564A1 Process for the preparation of stilbenedicarboxylate derivatives
11/14/1990EP0280725B1 Improvement for processes for preparing diaryl sulfones
11/14/1990EP0191858B1 Poly(arylcyclobutenes)monomersand a method of polymerising thereof
11/14/1990CN1046893A Process for preparation of 2-cyclohexyl carboxylates
11/13/1990US4970338 Preparation process of biphenyl-4,4'-dicarboxylic acid
11/13/1990US4970336 Method of purifying α-substituted acetic acids
11/13/1990US4970334 Dehydration of saturated esters with acid catalysts
11/13/1990US4970333 Esterification
11/13/1990US4970332 From acrylate ester and iodobenzene
11/13/1990US4970330 Insecticides, pesticides
11/13/1990US4970328 Miticide, fungicide
11/13/1990US4970319 Process for the preparation of acyl isocyanates
11/13/1990US4970317 Using subtilisin enzyme
11/13/1990US4970313 Optically active 3-demethylmevalonic acid derivatives, and intermediates
11/13/1990US4970244 Benzophenone peroxyester
11/13/1990US4970214 Diabetic complications
11/13/1990US4970185 Nickel, salt, hydride, alchol
11/13/1990US4970120 Hydazone and nitro-substituted phenyl compound, and unsaturated amide
11/13/1990US4970069 Method of attracting Tribolium castaneum Herbst with 2,6-dimethyl-octly formate
11/13/1990US4970023 Biphenyl compounds, method of producing the same as well as liquid crystal compositions and light switch elements each containing the same
11/13/1990US4970022 Liquid-crystalline mustard oils
11/13/1990CA1276184C Process for the preparation of a-,a-,a- trifluoroanisoles
11/13/1990CA1276183C Process for the preparation of di-ortho-substituted di-meta-halogenatedpara-halomethylphenols
11/13/1990CA1276181C Process for purifying 4-hydroxyacetophenone
11/13/1990CA1276180C Propylamines, their preparation and their use as fungicides
11/13/1990CA1276179C Anthranilonitrile derivatives and related compounds as useful agents for promoting growth, improving feed efficiency, and for increasing the leanmeat to fat ratio of warm-blooded animals
11/13/1990CA1276177C2 Process for the optical resolution of racemic mixtures of -naphthyl-propionic acids
11/13/1990CA1276176C Purification of crude sorbic acid
11/13/1990CA1276173C Sulphur compound production
11/13/1990CA1276172C Hydroxyphenyl- and hydroxyphenoxyalkanoic acid iodo propargyl esters
11/13/1990CA1276171C Amino acid esters
11/13/1990CA1276168C (meth)-acrylic acid esters and the use thereof
11/13/1990CA1276167C Process for the preparation of urethanes
11/13/1990CA1276165C Urethanes containing perfluoroalkyl and epichlorohydrin groups, aqueous dispersions containing these urethanes, and the usethereof
11/13/1990CA1276164C Urethanes which contain perfluoroalkyl groups, epichlorohydrin groups and dialcohol radicals, the preparation and use thereof
11/13/1990CA1276155C Derivatives of an aminoketone
11/13/1990CA1276144C Method for oxidation
11/13/1990CA1276067C Method for molding 1,4,4a,9a-tetrahydroanthraquinone
11/07/1990EP0396024A2 Esters, medicaments containing them and preparation of these esters and medicaments
11/07/1990EP0395803A1 Method for producing 1,1,3,3, - tetramethylbutyl hydroperoxide
11/07/1990EP0395729A1 Ligand-accelerated catalytic asymmetric dihydroxylation.
11/07/1990CN1010310B Process for preparing agent of anti-hyperlipidemia
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