Patents
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Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
08/1989
08/29/1989CA1258870A1 High yield carbonylation of halo-hydrocarbons
08/29/1989CA1258867A1 Process for preparing 6-(lower) alkoxy-1-naphthoic acids and the corresponding esters and use of this process for preparing 6-(lower) alkoxy-5-halo-1- naphthoic acids and the corresponding esters
08/29/1989CA1258863A1 Cyclohexane derivatives
08/29/1989CA1258855A1 Substituted cinnamyl-2,3-dihydrobenzofuran and analogs useful as anti-inflammatory agents
08/24/1989WO1989006642A3 Impurity removal from carbon monoxide and/or hydrogen-containing streams
08/23/1989EP0329337A2 The production of formic acid from a nitrogenous base, carbon dioxide and hydrogen
08/23/1989EP0329273A2 Process for producing 2,6-naphthalene dicarboxylic acid
08/23/1989EP0329252A1 Process for the preparation of carboxylic acids or esters thereof
08/23/1989EP0329156A1 Process for the optical resolution of (+-)-2-hydroxy-4-phenylbutanoic acid
08/23/1989EP0329124A2 Metabolites of pentanedioic acid derivatives
08/23/1989EP0328766A1 Process for the preparation of aromatic dicarboxylic acids
08/23/1989EP0134246B1 Prostacyclines and process for their preparation
08/22/1989US4859777 Terpyridine chelating agents
08/22/1989US4859756 Polymers of oxyalkylated unsaturated quaternary ammonium salts, their preparation and their use
08/22/1989US4859499 Pyrolysis of indium formate
08/22/1989US4859285 Solvent extractionusing ketone
08/17/1989DE3903716A1 Verfahren zur gleichzeitigen herstellung von n-phosphonomethyl-imino-diessigsaeure und alkylcarbonsaeurechlorid Process for the simultaneous production of N-phosphonomethyl-imino-diacetic acid, and alkylcarboxylic acid chloride
08/16/1989EP0328153A1 A process for producing metal salts of ether carboxylic acids
08/16/1989EP0172906B1 Process for making substituted carboxylic acids and derivatives thereof
08/16/1989CN1034707A Bicyclohexyl-3,4,3,4-tetra-formie acid or bihalides thereof and obtaining polyamide and polyimide frome same
08/15/1989US4857659 Stereoselective synthesis of leukotriene antagonists
08/15/1989US4857658 Preparation of (Z)-2-(2-arylethenyl)arylcarboxylic acids
08/15/1989US4857652 Chemiluminescent 1,2-dioxetane compounds
08/15/1989US4857462 Process for obtaining D(+)-naproxen
08/15/1989US4857239 Polymerization inhibition; catalyst-free
08/15/1989CA1258469A1 Process for the joint manufacture of carboxylic acids, carboxylic anhydrides and, if desired, carboxylic acid esters
08/09/1989EP0327221A1 Process for production of aromatic hydroxycarboxylic acid
08/09/1989EP0326891A2 Antibacterial agents
08/09/1989CN1034533A Recovery and esterification method of maleic acid anhydride
08/08/1989US4855517 Reacting aromatic nitro compounds with bromine in the gas phas e
08/08/1989US4855511 Di- and trichloromethyl-acetyl chlorides
08/08/1989US4855496 Process for the preparation of formic acid
08/08/1989US4855494 Process for producing citric acid
08/08/1989US4855492 Process for production of aromatic polycarboxylic acids
08/08/1989US4855491 Method for selectively removing process stream impurities utilizing reverse osmosis
08/08/1989US4855464 Optically active ketals, processes for their preparation and their use in the synthesis of alpha-arylalkanoic acids
08/08/1989US4855460 Process for perfluoroalkylation of acid anhydrides
08/08/1989US4855459 Process for the production of maleic anhydride
08/08/1989US4855458 Manufacture of phthalic anhydride by gas phase oxidation of a mixture of o-xylol and naphthalene
08/08/1989US4855457 Carboxylic anhydride process
08/08/1989US4855446 Reacting carboxylic acids with hydroxy lactones and separating esters by crystallization or chromatography
08/08/1989US4855323 Leukotriene antagonists, a process for the preparation thereof, and the use thereof for the treatment of diseases
08/08/1989US4855320 Anticonvulsants, antiepileptics
08/02/1989EP0326538A2 Method for preparation of alkyl glycolates
08/02/1989EP0326536A1 Process for the production of maleic anhydride
08/02/1989EP0326027A1 Process for the purification of 2-(4-isobutylphenyl)-propionic acid
08/02/1989EP0325998A2 3,3-Dimethyl-hex-5-en-2-on derivatives, process for their preparation and their use
08/02/1989EP0325925A1 Method for the purification of 2-hydroxy-naphthalene-6-carboxylic acid
08/02/1989CN1034363A Method of separation of the residues from commercial terephthalic acid production
08/02/1989CN1034362A Process for production of aromatic hydroxycarboxylic acid
08/01/1989US4853482 Isomerization of ester using carbon mooxide and group 8 metal and group 5 metal quaternary catalyst
08/01/1989US4853481 Preparation of alkyl-substituted aromatic ketones
08/01/1989US4853479 Process for the manufacture of aromatic dicarboxylic acids and derivatives thereof
08/01/1989US4853477 Complexing with naphthalene derivative, crystallizing out of less soluble enantiomer
08/01/1989US4853398 Antiallergens
07/1989
07/27/1989WO1989006649A2 Antibacterial agents
07/27/1989WO1989006642A2 Impurity removal from carbon monoxide and/or hydrogen-containing streams
07/27/1989DE3800790A1 Process for the preparation of saturated, odd-numbered carboxylic acids by oxidative degradation of saturated even-numbered fatty alcohols with nitric acid
07/26/1989EP0325563A2 Process of synthesis of organic substances by an indirect electrochemical route with a redox system in the solid state
07/26/1989EP0325446A2 Impurity removal from carbon monoxide and/or hydrogen-containing streams
07/26/1989EP0221136B1 Catalyst recovery process
07/26/1989EP0191395B1 Process for the purification of crude maleic anhydride
07/26/1989CN1034199A Process for produing perfluoro-carbonyl fluoride
07/25/1989US4851574 Separation of citric acid from fermentation broth with a strongly basic anionic exchange resin adsorbent
07/25/1989US4851573 Crosslinked styrene or acrylic polymer
07/25/1989US4851538 Coupling a haloaromatic compound using carbon monoxide, an alkaline medium and a supported palladium catalyst; efficiency; kinetics
07/25/1989US4851160 Process for the preparation of benzoic acid derivatives
07/25/1989US4851153 Conductive high molecular weight composition
07/25/1989CA1257874A1 Process for preparing opticaly active 2-(4-hydroxy- phenoxy)propionic acid compounds
07/25/1989CA1257872A1 PROCESS FOR PREPARING .alpha.-HYDROXY-ALKANOIC ACIDS AND COMPOUNDS OBTAINED BY THIS PROCESS
07/19/1989EP0324419A1 Process for the continuous preparation of isobutyric acid
07/19/1989EP0324414A2 Process for the manufacture g alpha, beta-monoolefinic unsaturated carboxlic acids containing 3-4 C atoms by gas phase oxidation
07/19/1989EP0324360A1 Process for the preparation of isobutyric acid or derivatives thereof
07/19/1989EP0324342A1 Process for producing 2,6-naphthalene dicarboxylic acid
07/19/1989EP0324210A1 Separation of citric acid from fermentation broth
07/18/1989US4849542 Process for the preparation of oxo-alkanedioic acids or diesters thereof
07/18/1989US4849533 Mono-or diglycidyl anthraquinones, redox catalysts for metal electrodeposition
07/18/1989US4849530 Process for the preparation of crystalline salts or aryloxy-propanolamines
07/18/1989US4849453 Growth promotion
07/18/1989US4849391 Oxidation catalyst and process for its preparation
07/18/1989CA1257595A1 5-halovinyl-2'-deoxyuridine derivatives
07/18/1989CA1257522A1 Non-aged inorganic oxide-containing aerogels and their preparation
07/13/1989DE3743981A1 Verfahren zur herstellung von acetylchlorid Process for the preparation of acetyl chloride
07/12/1989EP0323651A2 Process for the recovery of colour-fast maleic anhydride
07/12/1989EP0323625A2 Process for preparing 3-[2-chloro-2(4-chlorophenyl)-vinyl]-2,2-dimethyl-cyclopropane carboxylic acid
07/12/1989CN1004750B Heterogeneous catalyst comprising shodium coordinated with polymer and its preparation
07/11/1989US4847442 Process for the preparation of difluorobenzenes
07/11/1989US4847390 Cyclopentane derivatives
07/11/1989US4847016 High speed
07/11/1989CA1257290A1 Process for preparing 6-acetoxy-2-naphthoic acid and pure 6-hydroxy-2-naphthoic acid
07/11/1989CA1257289A1 1-substituted 4-methoxy-2,3,6-trimethylbenzene derivatives; process for preparing the same and their use as cosmetics
07/11/1989CA1257283A1 PROCESS FOR PREPARING .alpha.-SUBSTITUTED- ALKYLARYLKETALS
07/05/1989EP0323309A2 Process for the preparation of naphthalene dicarboxylic acids
07/05/1989CN1033619A Process for exchanging dispersing medium of terephthalic acid slurry
07/04/1989US4845281 From aniline in a multistep process
07/04/1989US4845280 Catalytic carbonylation of aromatic bromides
07/04/1989US4845277 Method of preparing dialkoxybenzoic acid
07/04/1989US4845276 Preparation of dialkoxybenzoic acid
07/04/1989US4845275 Oxidation of pseudocumene, catalyst
07/04/1989US4845274 To corresponding acid, cobalt, manganese, bromine catalyst
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