Patents for C07C 67 - Preparation of carboxylic acid esters (66,429) |
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10/23/1991 | CN1014403B Process for production of 2,3 dimethylbutene-1 from propene |
10/23/1991 | CN1014402B Process for removing arsine from light olefin-containing hydrocarbon feedstocks |
10/23/1991 | CN1014398B Process for preparation of hydrocarbons |
10/22/1991 | US5059742 Process for separating 2,6-dimethylnaphthalene |
10/22/1991 | US5059729 Process for preparing 1,2-difluoroethane and 1,1,2-trifluoroethane |
10/22/1991 | US5059711 Oxidizing bis(trifluoromethyl) disulfide in liquid phase |
10/22/1991 | US5059328 Separation agent comprising 1,3-glucan |
10/22/1991 | US5059306 Process for removing pure aromatics |
10/22/1991 | US5059288 Recovery of isopropyl acetate and ethanol from an isopropyl acetate, ethanol and water-containing stream |
10/22/1991 | CA1291172C Process for the catalytic trans-halogenation of a polyiodo-benzene, and, in particular, of a di-iodo-benzene |
10/22/1991 | CA1291169C Preparation process of 4-(4-hydroxophenyl)- cyclohaxanol |
10/22/1991 | CA1291165C Alkylsulfonamidophenylalkylamines |
10/22/1991 | CA1291163C Benzenesulfonamido derivatives |
10/22/1991 | CA1291162C N-sulphenylated benzenesulphonic acid amide fungicides |
10/22/1991 | CA1291161C Preparation of anhydrous alkanesulfonic acid |
10/22/1991 | CA1291158C Process for the preparation of an ester of a 3-aryl-substituted acrylic acid |
10/22/1991 | CA1291155C Process for the preparation of carbamates |
10/22/1991 | CA1291154C 2,2-dihalovinyl haloformates, process of preparation and applications thereof |
10/22/1991 | CA1291151C N-benzoyl-n'-3,5-dichloro-4-hexafluoropropyloxy-phenylureas |
10/22/1991 | CA1291150C Process for the preparation of alkoxycarbonyl isocyanates |
10/22/1991 | CA1291148C Alkoxylation process using calcium based catalysts |
10/22/1991 | CA1291146C Molybdenum/alkali metal/ethylene glycol complexes useful as epoxidation catalysts |
10/22/1991 | CA1291140C 1,1-dialkoxy-2-methyl-4,4-diacyloxy-2-butenes |
10/22/1991 | CA1291139C Cyclohexane-1,3-dione derivatives, processes for their manufacture, and their use for controlling undesirable plant growth |
10/18/1991 | WO1991016362A1 Process for direct addition of acid to polymers |
10/18/1991 | CA2080120A1 Process for direct addition of acid to polymers |
10/17/1991 | WO1991015455A1 Esters and fluids containing them |
10/17/1991 | WO1991015453A1 Catalyzed process for reacting carboxylic acids with vinyl ethers |
10/17/1991 | WO1991015452A1 Process for the production of fatty acid alkyl esters |
10/17/1991 | WO1991006537A3 Substituted indole-, indene-, pyranoindole- and tetrahydrocarbazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase |
10/17/1991 | CA2079103A1 Esters and fluids containing them |
10/16/1991 | EP0451873A1 Derivatives of 2,2-dimethyl cyclopropanecarboxylic acid substituted at c-3 by a saturated halogenated chain, process for their preparation and their use in the synthesis of pesticidal products |
10/16/1991 | EP0306521B1 Ethine derivatives as compounds of liquid crystal phases |
10/16/1991 | EP0276231B1 Transition metal complex catalyzed hydroformylation |
10/16/1991 | EP0273060B1 Process for producing unsaturated carboxylates |
10/16/1991 | EP0269718B1 Catalytic vapor phase process for producing dihydrocarbyl carbonates |
10/16/1991 | CN1055360A Catalysed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters |
10/15/1991 | US5057530 Glycerol derivatives |
10/15/1991 | US5057302 Bifunctional chelating agents |
10/15/1991 | CA1290767C Method for production of unsaturated carboxylic acid esters |
10/15/1991 | CA1290760C Reduction of carboxylic esters |
10/15/1991 | CA1290738C Attrition-resistant catalyst composition, method of making and use |
10/09/1991 | EP0450892A1 Cinnamic acid derivative and external skin treatment preparation containing the same |
10/09/1991 | EP0450621A2 Process for the preparation of high-purity 2,6 naphthalenedicarboxylic acid esters |
10/09/1991 | EP0449966A1 Low pressure rhodium catalyzed hydroformylation of olefins |
10/09/1991 | EP0449919A1 Improved process for producing esters of (meth)acrylic acid and polyhydric alcohols (iv). |
10/09/1991 | EP0449918A1 Improved process for producing esters of (meth)acrylic acid and polyhydric alcohols (i). |
10/09/1991 | EP0449913A1 Improved process for producing esters of (meth)acrylic acid of polyhydric alcohols (iii). |
10/09/1991 | EP0449912A1 Improved process for producing esters of (meth)acrylic acid of polyhydric alcohols (ii). |
10/09/1991 | EP0449865A1 Improved dry neutralization process for liquid organic phases. |
10/09/1991 | EP0253837B1 Catalytic method for producing fluoroaromatic compounds using branched alkyl pyridinium salts |
10/09/1991 | CN1055177A Prepn. of beta-ketoesters useful in preparing quinolone antibiotics |
10/09/1991 | CN1014239B Pesticide of n-(vinal oxyethyl) dithio-carbamate |
10/09/1991 | CN1014236B Substituted phenyl alpha-fluoroacrylates |
10/09/1991 | CN1014235B Process for prodn. of dialkyl dis-butendioate |
10/09/1991 | CN1014233B Oligomerization of olefins |
10/08/1991 | US5055613 Metabolites of pentanedioic acid derivatives |
10/08/1991 | US5055610 Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids |
10/08/1991 | US5055592 For preparation of prostaglandin derivatives |
10/08/1991 | US5055451 Prevent tissue damage |
10/08/1991 | CA1290354C Process for the selective hydrogenation of alkynes |
10/08/1991 | CA1290353C Process for isomerization of a hydrocarbon feed stream |
10/08/1991 | CA1290352C Alkylation process utilizing enhanced boiling surface heat exchanger in the reaction zone |
10/08/1991 | CA1290351C Process for preparing 1,1,1-trifluoro-2,2- dichloroethane by hydrofluorination in the presence of catalysts |
10/08/1991 | CA1290350C Hydroformylation catalyst removal |
10/08/1991 | CA1290349C Hydrogen acceptor catalysis for aromatization of hydroaromatic compounds |
10/08/1991 | CA1290348C Aromatization of dihydroaromatic compounds by treatment with bases |
10/08/1991 | CA1290347C Diamine derivatives |
10/08/1991 | CA1290344C Process for producing t-butyl methacrylate |
10/08/1991 | CA1290331C Prostacyclins and pharmaceuticals containing the same |
10/08/1991 | CA1290326C Acrylic acid amides |
10/08/1991 | CA1290325C Protic solvent in a dehydrohalogenation process, the product obtained therefrom and lubricant compositions containing same |
10/04/1991 | WO1991015454A1 Method for preparing 1,4-diacyloxy-2-butenes |
10/04/1991 | CA2056429A1 Method for preparing 1,4-diacyloxy-2-butenes |
10/03/1991 | WO1991015441A1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation |
10/03/1991 | WO1991014691A1 Process for preparing penem esters |
10/03/1991 | WO1991014669A1 A process for isomerizing epoxides to ketones |
10/03/1991 | CA2079806A1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation |
10/03/1991 | CA2039423A1 Cinnamic acid derivative and external skin treatment preparation containing the same |
10/02/1991 | EP0449778A2 Process for the preparation of hydroxyphenylepropionates |
10/02/1991 | EP0449777A1 Process for the preparation of hydroxyphenylpropionates |
10/02/1991 | EP0449693A1 Catalyst and process for the preparation of esters of saturated carboxylic acids |
10/02/1991 | EP0449445A2 Preparation of beta-ketoesters useful in preparing quinolone antibiotics |
10/02/1991 | EP0449296A1 Palladium catalyzed carboalkoxylation of butadiene |
10/02/1991 | EP0449049A2 Naphthalenedicarboxylic acid esters |
10/02/1991 | EP0448775A2 Colorless grained alpha-form crystals of tetrakis [3-(3,5-Di-T-butyl-4-hydroxyphenyl)propionyloxymethyl]methane and process for its manufacture |
10/02/1991 | EP0448602A1 Method for functionalization of nucleophiles |
10/02/1991 | EP0309533B1 Butyl hydroxyanisoles for the treatment of retroviral diseases |
10/02/1991 | EP0217804B1 Analogs of substances p |
10/02/1991 | DE4009910A1 Ethenolytic metathesis of olefin(s) - using organo-rhenium oxide catalyst on oxidic carrier |
10/02/1991 | CN1054983A Process for preparing penem esters |
10/02/1991 | CN1014145B Purification of terephthalic acid |
10/02/1991 | CN1014144B Prepn. for bisphenol a |
10/02/1991 | CN1014110B Process for preparing benzoylphenylureas |
10/01/1991 | US5053571 Ruthenium and nickel/support on zeolite beta selectivity |
10/01/1991 | US5053560 Feeding agqeuous potassium hydroxide with excess tert-butanol; methylcyclohexane or heptane as withdrawing agent |
10/01/1991 | US5053551 Process for the production of aldehydes by hydroformylation |
10/01/1991 | US5053550 Cyclization of 4-chlorobutanol; heating in liquid two phases (mineral base aqueous and water immiscible organic); continuous processing |
10/01/1991 | US5053547 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them |
10/01/1991 | US5053533 Continuous processing of 1-chloro-2-methoxy-napthalene under Friedel-Craft conditions, without isolation/purification of chemical intermediate |