Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
12/1981
12/30/1981EP0042794A1 Alkyl-4-methyl-3-formyl pentenoates, their preparation, their use in the preparation of the 4-methyl-3-formyl-3-pentenoic acid and the intermediates
12/30/1981EP0042537A1 Process for the position isomerization of terminal double bonds in olefins
12/30/1981EP0042412A1 Method of synthesizing fluoromethylhexafluoroisopropyl ether.
12/30/1981EP0042408A1 Methods of synthesizing hexafluoroisopropanol from impure mixtures and synthesis of a fluoromethyl ether therefrom.
12/30/1981EP0007347B1 Alkylenglycol compounds for lowering the lipid content and processes for the preparation thereof
12/29/1981US4308413 Process for the preparation of alkylbenzenes
12/29/1981US4308410 Production of chloroprene
12/29/1981US4308408 Process for the hydroxylation of styrene and styrene derivatives
12/29/1981US4308406 Adding a hydroxycarboxylic acid or ester
12/29/1981US4308404 From phenol and acetone in presence of acidic ion exchange resin
12/29/1981US4308402 Process for methyl-capped alkoxylates
12/29/1981US4308400 Sensitizers for photopolymerization
12/29/1981US4308394 Photopolymerizable photoinitiators
12/29/1981US4308385 Urea hydrolysis, ammonia and carbon dioxide separation
12/29/1981US4308282 Spasmolytics
12/29/1981US4308281 Sorbic acid-containing powder or granules
12/29/1981US4308234 Treatment of urea solutions
12/29/1981US4308216 Process for the preparation of aromatic dicarboxylic acid dichlorides
12/29/1981US4308211 Octahydroanthraquinone, melt, catalyst of group 8 metal or oxide, dehydrogenation
12/29/1981US4308179 Perfumed compositions
12/29/1981US4308175 Oxides of chromium, tungsten, and molybdenum or potassium
12/29/1981US4308159 Use of norbornyl ethers in augmenting or enhancing the aroma of fabric softener articles
12/29/1981US4308112 Process for the isolation of pyrocatechol and hydroquinone
12/29/1981US4308109 Method of producing ethanol-water azeotrope from crude ethanol
12/29/1981CA1115295A1 Process for preparing p-aminophenol
12/29/1981CA1115294A1 Process for the preparation of novel derivatives of 5h-benzocyclohepten-7-amines and their salts
12/29/1981CA1115290A1 Manufacture of butanedicarboxylic acid esters
12/29/1981CA1115286A1 Process for the preparation of urethanes
12/29/1981CA1115285A1 Process for the preparation of urethanes
12/29/1981CA1115260A1 Dehydrogenation catalyst
12/29/1981CA1115259A1 Method for preparing aluminosilicates, their use as catalyst supports and catalysts, and method for producing catalysts therefrom
12/23/1981EP0042358A1 Organic sulphides and their use as stabilizers in organic materials
12/23/1981EP0042309A1 Method for the coproduction of hydrocarbons and alcohols
12/23/1981EP0042252A1 Isobutene by dehydroisomerisation of normal butane
12/23/1981EP0042210A2 Palladium(II) bis (hexafluoroacetylacetonate), adducts derived therefrom and uses thereof
12/23/1981EP0042185A1 A process for the preparation of ethanol
12/23/1981EP0042164A1 A process for separating p-xylene from other alkyl substituted monocyclic aromatic hydrocarbons
12/23/1981EP0042119A2 Process for the preparation of primary mono- and diamines from oxo-compounds
12/23/1981EP0042098A2 Process for the preparation of 1-butene-3,4-diolemonoesters and 1-butene-3-alkyl-3,4-diolemonoesters
12/23/1981EP0042097A1 Process for the reactivation of support catalysts that contain palladium or platinum, copper and tellurium
12/23/1981EP0042069A2 Metal salts of polyacetylenic compounds and uses thereof
12/23/1981EP0042059A1 Process for the preparation of isocyanates
12/22/1981US4307262 Use of zinc diphenyl as alkylation inhibitor in ligand-complexing process
12/22/1981US4307257 Process for production of tertiary butyl alcohol
12/22/1981US4307256 Tertiary amine catalyst for decyclization of alkylene oxides
12/22/1981US4307253 Process for the preparation of alkyl aryl ethers
12/22/1981US4307252 2-Propyl-pent-4-en-1-al
12/22/1981US4307251 Preparation of optically active allethrolone
12/22/1981US4307250 Amines via the amination of olefins
12/22/1981US4307247 Oxidative dehydrogenation using a mixed oxide catalyst
12/22/1981US4307246 Precipitation from an anhydrous ketone and sulfuric acid
12/22/1981US4307244 Process for the preparation of methyl 2,2-dimethyl, -3-(2'methyl-propenyl)-cyclopropane-1,1-dicarboxylate
12/22/1981US4307243 Process of preparing dihalovinyl compounds
12/22/1981US4307122 Flavoring with cis-10,10-dimethyl-tricyclo[7.1.1.02,7 ]undec-2-en-4-one
12/22/1981US4307112 9-Deoxy-9A-methylene isosteres of PGI2 and process for their preparation
12/22/1981US4307111 1-Hydrocarbyloxyphenyl-1,2-diphenylalkene derivatives
12/22/1981US4307039 Betaine phase transfer catalysts
12/22/1981US4307037 Process for the production of iminodiacetonitrile
12/22/1981US4307036 Method for preparing a mixture of stereoisomers of α-cyano-3-phenoxybenzyl 2-(4-substituted-phenyl)isovalerates
12/22/1981US4307033 Preparation of 3,3-dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives and intermediates therefor
12/22/1981US4307029 Process for preparing polymethylene-polyphenyl polyisocyanates
12/22/1981US4307025 1α, 25-dihydroxy-2β-fluorovitamin D3
12/22/1981US4307022 Process for obtaining α,α'-dinitro anthraquinones of high purity
12/22/1981US4307021 Process for obtaining 1,5-dinitro-anthraquinone of high purity
12/22/1981US4306945 Extracting aromatic hydrocarbons from mixtures containing same
12/22/1981CA1114990A1 Polyols
12/22/1981CA1114839A1 Process for reduction of sugars to sugar-alcohols
12/22/1981CA1114838A1 Process for the manufacture of secondary amines
12/22/1981CA1114837A1 Process for the preparation of oxalyl chloride
12/22/1981CA1114836A1 SALTS OF .alpha.-ISOCYANOCARBOXYLIC ACIDS AND THEIR USE AS PLANT GROWTH REGULATORS
12/22/1981CA1114835A1 Process for preparing terephthalic acid
12/22/1981CA1114833A1 Preparation of unsaturated carboxylic esters from propylene or isobutylene
12/22/1981CA1114832A1 Hindered phenolic nitro compounds as antioxidants
12/22/1981CA1114831A1 Process
12/22/1981CA1114830A1 Polyene compounds
12/22/1981CA1114815A1 (2-amino-2-oxoethoxy) acetic acid compounds, compositions and methods
12/16/1981EP0041908A1 Process for the preparation of 2,6-dichloro-4-nitroaniline and compound obtained by this process
12/16/1981EP0041785A1 Oxidation of substituted aromatic compounds to aromatic carboxylic acids
12/16/1981EP0041784A1 Oxidation of substituted aromatic compounds to aromatic carboxylic acids
12/16/1981EP0041778A1 Oxidation of meta- or para-xylene to iso- or tere-phthalic acid
12/16/1981EP0041757A1 Ethylendiamine derivatives, preparation thereof, pharmaceutical compositions containing same and intermediates for their preparation
12/16/1981EP0041739A2 Preparation of fluorinated acid fluorides; preparation of acids, amides or esters derived therefrom, copolymerization of fluorinated vinyl ethers
12/16/1981EP0041738A1 Preparation of vinyl ethers
12/16/1981EP0041737A1 Process to produce novel fluorocarbon vinyl ethers and resulting polymers
12/16/1981EP0041736A1 Fluorocarbon ethers having substituted halogen site(s) and process to prepare
12/16/1981EP0041726A2 Process for the oxidation of unsaturated hydrocarbons especially to acids or ketones
12/16/1981EP0041682A1 A method of preparing poly-substituted acylbenzenes
12/16/1981EP0041672A1 Process for the preparation of aromatic aldehydes
12/16/1981EP0041671A1 Substituted 3,3-dimethyl-butan-2-ones, process for their preparation and their use as intermediate products
12/16/1981EP0041661A2 Preparation of intermediates of carbaprostacyclines
12/16/1981EP0041651A1 Process for producing wet strength agents for paper
12/16/1981EP0041631A1 Process for the production of nitronaphthalene sulfonic acids
12/16/1981EP0041613A1 Derivatives of aralkylaniline and herbicides containing these compounds
12/15/1981US4306105 Chlorinated alumina catalyst
12/15/1981US4306104 Oxychlorination of benzene in the presence of cupric chloride catalyst
12/15/1981US4306103 Process for the manufacture of 1,3,5-trichlorobenzene
12/15/1981US4306102 P-Tert.butylbenzotribromide and p-tert.butylbenzoyl bromide and process for their manufacture
12/15/1981US4306099 Or 7,8-dihydroxy-1-paramenthene obtained from b-pinene epoxide and a mercuric salt
12/15/1981US4306096 Perfumes, insecticides
12/15/1981US4306095 Useable in luteolysis, inhibiting blood platelet aggregation and inhibiting production of gastric acid
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