Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
12/1990
12/12/1990EP0402104A2 Racemization of a carboxylic acid
12/12/1990EP0402063A2 Alpha-(omega-cyanoalkanoyl)-gamma-butyrolactone and method for producing the same
12/12/1990EP0401533A1 Continuous process for the preparation of glyoxylic acid
12/12/1990EP0401532A1 Process for the preparation of a storage stable levulinic acid
12/11/1990US4977279 Anticholesterol agents
12/11/1990US4977256 Reacting with zinc powder in buffer
12/11/1990US4976947 Process for the recovery of elemental iodine from alkyl iodides
12/11/1990US4976893 Platinum-catalyzed oxidation of primary alcohols
12/11/1990CA1277680C2 3,3,4-trimethyl-4-chloro-2-pentanone, 1-halo derivates and process therefor
12/07/1990CA2018295A1 Racemization of a carboxylic acid
12/06/1990WO1990015046A1 Extraction process for removal of impurities from terephthalic acid filtrate
12/05/1990EP0400892A2 Method for producing ibuprofen
12/05/1990EP0400692A1 Process for producing Si02 Sn02 mixed oxide
12/05/1990EP0400169A1 Removal of volatile acids from aqueous solutions
12/05/1990CN1047493A Process for making alkyl ethoxy carboxylates
12/05/1990CN1010680B Compoundedinhibitor of polymerization for methacrylic acid and esters thereof
12/05/1990CN1010679B Method of processing sodium oxalate formed during the digestion of bauxite
12/05/1990CA2017580A1 Process for the preparation of storage-stable levulinic acid
12/04/1990US4975258 Sodium oxide, potassium oxide, quinuclidine, tetraethylammonium chloride or hydroxide and silicon or germanium oxide
12/04/1990US4975155 Removal of iodine or iodide impurities
12/04/1990CA1277332C Phenyl nonatetraenoic acid derivatives
12/04/1990CA1277306C Process for the preparation of vanadium-containing mixed metal soap solutions
12/03/1990WO1990015112A1 Process for manufacturing crystalline calcium magnesium acetate
12/03/1990CA2056420A1 Process for manufacturing crystalline calcium magnesium acetate
12/01/1990WO1990015045A1 Oxidative preparation of a-nor-17 beta-carboxy-3,5-secoandrostan-5-one-3 oic acid
11/1990
11/29/1990WO1990014325A1 Process for producing methacrylic acid and methacrolein
11/29/1990WO1990014073A1 Pharmaceutical preparation
11/28/1990EP0399751A2 Process for making alkyl ethoxy carboxylates
11/28/1990EP0399417A2 Preparation of stearidonic acid
11/28/1990EP0399029A1 An improved process for production of polycarboxylic aromatic acids
11/28/1990EP0398967A1 Antibacterial agents
11/28/1990CN1047278A Process for producing acrylic ester
11/28/1990CN1010587B Method for new salts preparation
11/27/1990US4973772 Reacting chloroaromatic compound with alkali metal fluoride in presence of phase transfer agents
11/27/1990US4973749 Process for the dimerization of hexafluoropropene oxide
11/27/1990US4973748 Process for the oligomerization of hexafluoropropene oxide
11/27/1990US4973747 Chemical intermediate for antibiotics
11/27/1990US4973745 Forming salt with p-nitrophenyl-aminopropanediol, crystallization, ibuprofen, flurbiprofen, carprofen
11/27/1990US4973736 Dye, drug and herbicide intermediates
11/27/1990US4973731 Di-t-butylphenyl alkyl and benzyl ether nitriles
11/27/1990US4973431 Process for the recovery of methyl-branched, saturated C14 -C24 -f
11/25/1990WO1990014345A1 Process for preventing discoloring of maleic anhydride
11/25/1990CA2032529A1 Method of preventing discoloring of maleic anhydride
11/22/1990EP0398668A1 Nickel/silica catalyst and the preparation and use thereof
11/22/1990EP0398633A1 Method and compositions for inhibiting polymerization of acrylic acid monomers
11/22/1990EP0398288A2 Process for preparing optically active 2-arylalkanoic acids, in particular 2-arylpropionic acids
11/22/1990EP0398287A1 Pharmaceutical preparation
11/22/1990EP0398282A1 Process for manufacturing high-purity o-toluic acid
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
11/22/1990CA2012171A1 Process for making alkyl ethoxy carboxylates
11/20/1990US4971699 Nonporous membrane separation layer of a blend of polyvinylalcohol and polyacrylic acid on polysulfone support
11/16/1990CA2016888A1 Pharmaceutical preparation
11/16/1990CA2016887A1 Process for preparing optically active 2-aryl-alkanoic acids, in particular 2-aryl propionic acids
11/15/1990WO1990011997A3 Inhibitors of mono-amine oxidase, process for their preparation, and their use in therapeutics.
11/15/1990CA2016669A1 Process for producing acrylic ester
11/14/1990EP0397292A2 Process for producing a thin metal oxide layer on a substrate, especially glass, and its use as glazing
11/14/1990EP0397290A1 Novel derivatives, their preparation and pharmaceutical composition containing them
11/14/1990EP0396841A1 Fluorinated arachidonic acid derivatives
11/14/1990EP0396650A1 Device for carrying out catalytic reactions.
11/14/1990CN1046892A Fluorinated arachidonic acid derivatives
11/13/1990US4970338 Preparation process of biphenyl-4,4'-dicarboxylic acid
11/13/1990US4970336 Method of purifying α-substituted acetic acids
11/13/1990US4970332 From acrylate ester and iodobenzene
11/13/1990US4970330 Insecticides, pesticides
11/13/1990US4970313 Optically active 3-demethylmevalonic acid derivatives, and intermediates
11/13/1990US4970235 Medicaments containing of linolenic acid
11/13/1990CA1276177C2 Process for the optical resolution of racemic mixtures of -naphthyl-propionic acids
11/13/1990CA1276176C Purification of crude sorbic acid
11/13/1990CA1276175C Process for tetrafluorobenzoic acid
11/13/1990CA1276144C Method for oxidation
11/07/1990EP0396014A2 Substituted biphenylcarboxylic acids, process for their preparation and new intermediates
11/07/1990CN1046734A Process for preparation of hexene-1,6-diacid
11/07/1990CN1046733A Process for preparation of beta, alpha-unsaturated acids
11/07/1990CN1046732A Process for preparing carboxylic acids
11/07/1990CN1010310B Process for preparing agent of anti-hyperlipidemia
11/06/1990US4968852 Phosphine-rhodium complex decarbonylation catalyst
11/06/1990US4968840 Etherification of chloroacetic acid with sodium methylate
11/06/1990US4968838 Process for the preparation of unsaturated carboxylic acids
11/06/1990US4968834 Recycling aqueous phase to distillation zone
11/06/1990US4968830 Halogenative dehydrogenation
11/06/1990US4968787 Method for treating glycoside
11/06/1990US4968706 Mucolytic, antitussive, bronchodilator, antiinflammatory
11/06/1990CA1276032C Polyene compounds
11/06/1990CA1275934C2 Phenethanolamines
11/01/1990WO1990012859A1 A process for isomerizing olefinically unsaturated secondary alcohols
10/1990
10/31/1990EP0395546A2 Process for preparing beta,gamma unsaturated carboxylic acids
10/31/1990EP0395545A2 Process for preparing 1,6-hexenedioic acids
10/31/1990EP0395455A1 Process for preparing carboxylic acids by the reaction of alkanes and formiates
10/31/1990EP0395342A2 Process for the preparation of fluorine-containing organic compounds
10/31/1990EP0395199A1 Substituted tetrahydroindane derivatives and their use as intermediates
10/31/1990EP0395050A1 Process for the preparation of perfluorosuccinyl fluoride
10/31/1990EP0395038A2 Preparation of adipic acid from lactones
10/31/1990EP0394844A1 Process for the preparation of 4-ketocarboxylic acids and their esters
10/31/1990EP0394793A2 Abietic acid derivatives and their utilization as emulsifying agents
10/31/1990CN1010179B Process for producing composite oxide catalyst
10/30/1990US4967009 Reacting unsaturated aromatic compounds with aromatic iodosyl compounds to yield aromatic aldehydes or ketones
10/30/1990US4966996 Process for the preparation of E-2-propyl-2-pentenoic acid and physiologically compatible salts thereof
10/30/1990US4966995 Process for the preparation of chlorides of carboxylic acids
10/30/1990US4966993 Process for preparation of 3-hydroxy-3-methyl-glutaric acid
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