| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 03/14/1989 | US4812594 Process for purification of crude p-hydroxymethylbenzoic acid |
| 03/14/1989 | US4812572 Diazotization in hydrogen fluoride, decomposition under pressure |
| 03/14/1989 | US4812475 New method of treatment using prostaglandin analogues |
| 03/14/1989 | US4812264 Method for racemization of optically active chrysanthemic acid derivatives |
| 03/14/1989 | CA1251200A1 Carbacyclins, processes for their manufacture and their use as medicaments |
| 03/09/1989 | WO1989001935A1 Process for the preparation of oxy-diphthalic anhydrides |
| 03/08/1989 | CN1031523A Quenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquid |
| 03/08/1989 | CN1031488A Catalyst for oxidation of acrolein and process for preparation thereof |
| 03/07/1989 | US4810819 Process for the preparation of optically active alpha-acrylalkanoic acids and novel intermediates thereof |
| 03/07/1989 | US4810694 Skin disorders |
| 03/07/1989 | US4810398 Preparation of a basic salt |
| 03/07/1989 | CA1250859A1 Process for preparation of 3,5-dialkyl-4-hydroxy- benzoic acid |
| 03/07/1989 | CA1250834A1 5-fluoro-carbacyclins, process for their manufacture and their use as medicaments |
| 03/07/1989 | CA1250802A1 Protected trigger to controllably initiate crystallization |
| 03/02/1989 | DE3828253A1 Verfahren zur rueckfuehrung verbrauchter saeure bei der herstellung von methacrylsaeure oder methacrylsaeureester A process for repatriation spent acid in the production of methacrylic acid or methacrylic ester |
| 03/02/1989 | DE3727553A1 Verfahren zur herstellung von reiner fumarsaeure aus maleinsaeure enthaltenden nebenprodukten Process for the preparation of fumaric acid from maleic acid containing pure by-products |
| 03/01/1989 | EP0305289A1 Enantioselective process for preparing derivatives of trans- or cis-hemicaronaldehyde, and intermediates obtained |
| 03/01/1989 | EP0305089A1 Process for the asymmetric production of carboxylic acid esters and/or carboxylic acids |
| 03/01/1989 | EP0304987A2 Novel calcium supplements |
| 03/01/1989 | EP0304867A2 Process for preparation of methacrolein and methacrylic acid from methyl tert.-butyl ether |
| 03/01/1989 | EP0304831A1 Process for the continuous preparation of soaps from fatty acids |
| 03/01/1989 | EP0304778A1 Process for the production of N-acylated mercapto-alpha-amino acids |
| 03/01/1989 | EP0304763A1 Process for the preparation of ethercarboxylic acids |
| 03/01/1989 | EP0304495A1 Process for selectively monohydroesterifying diolefin |
| 03/01/1989 | EP0304424A1 WATER SOLUBLE COMPLEX OF A POLY(VINYLPYRROLIDONE) COPOLYMER AND $g(a)-METHYL-(2-METHYLPROPYL)BENZENE ACETIC ACID |
| 02/28/1989 | US4808751 Washing the hydrogenation catalyst with hot and cold water and concentrated and diluted naoh solutions |
| 02/28/1989 | US4808747 Process for producing alkylidene compounds and arylidene compounds |
| 02/28/1989 | US4808731 Method for making oxydiphthalic anhydride |
| 02/28/1989 | US4808409 Low cariogenic sweetening agents |
| 02/28/1989 | US4808407 Water-soluble copper salts |
| 02/28/1989 | US4808345 Process for the preparation of tetrachloroterephthaloyl dichloride by means of the chlorination of terephthaloyl dichloride with gaseous chlorine |
| 02/28/1989 | CA1250593A1 Preparation of aldols |
| 02/22/1989 | EP0304139A1 Process for making 5-hydroxy-3-hydroxymethyl-2-phenylfuran derivatives |
| 02/22/1989 | EP0304138A1 Process for making 1,3-dioxane derivatives |
| 02/22/1989 | CN1031221A Process for the optical resolution of -cis or-trans-permethric acid |
| 02/21/1989 | US4806684 Process for the preparation of bromofluoroacetic acids |
| 02/21/1989 | US4806683 Hydrolysis of ester with alkali in water solvent then acidification with mineral acid |
| 02/21/1989 | US4806681 Process for producing cinnamic acid from 1,1,1,3-tetrachloro-3-phenylpropane |
| 02/21/1989 | US4806286 Catalysis with guanidinium salt; pesticides, polymerization catalysts |
| 02/21/1989 | US4806209 Separation of formic acid from dioxane by extractive distillation |
| 02/21/1989 | CA1250312A1 Unsaturated derivatives, their preparation, and their use |
| 02/21/1989 | CA1250278A1 Aromatic carboxylic anhydride catalysts |
| 02/16/1989 | DE3726514A1 Process for the preparation of montanic acids |
| 02/15/1989 | EP0303227A1 Ethers and thioethers having therapeutical activity, their preparation and pharmaceutical compositions containing them |
| 02/15/1989 | CN1031074A Composition of 2,4-dichloro-5-fluoro-benzoic acid |
| 02/14/1989 | US4804779 Chemical detoxification of polychlorinated biphenyls (PCBS) |
| 02/14/1989 | US4804778 Process for producing methacrylic acid |
| 02/14/1989 | US4804777 Oxidation of aryloxyethanol using palladium, silver, carbon catalyst |
| 02/14/1989 | CA1250091A1 Substituted dipeptides, methods for their production, pharmaceutical compositions containing them, method for making such pharmaceutical compositions |
| 02/14/1989 | CA1249995A1 Cyclopropane ringed compounds; process for preparing the same and their use for preparing dihalovinyl chain cyclopropane derivatives |
| 02/14/1989 | CA1249990A1 Carboxylic anhydride catalysts |
| 02/08/1989 | EP0302697A1 Inhibition of polymerization of unsaturated acid in the vapor phase |
| 02/08/1989 | EP0302253A1 3-Demethyl-4-fluoro-mevalonic-acid derivatives, process for their preparation, pharmaceutical preparations based on those compounds, their use and intermediates |
| 02/08/1989 | EP0226636B1 New carboxylic acid derivatives, their manufacturing process, use and medicines containing these compounds |
| 02/08/1989 | CN1030909A Recovery of acrylic acid and/or ethyl acrylate from black acid |
| 02/07/1989 | US4803302 Catalytic vapor phase oxidation of methacrolein |
| 02/07/1989 | US4803301 Process for producing optically active 2-phenoxypropionic acid |
| 02/07/1989 | US4803291 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic acicular particles, the preparation of same and application thereof |
| 02/07/1989 | US4803268 Process for the preparation of cyclohexanedionecarboxylic acid derivatives |
| 02/07/1989 | US4803220 Thromboxane a2 antagonist |
| 02/07/1989 | US4803201 Aphidicolane derivatives; viricides; antitumor agents |
| 02/07/1989 | US4803190 Process for production of composite oxide catalysts |
| 02/07/1989 | CA1249845A1 Process for the preparation of halogenated aliphatic carboxylic acid fluorides |
| 02/07/1989 | CA1249843A1 Process for preparing bromo-fluoro-acetic acid |
| 02/07/1989 | CA1249842A1 Method for preparing ( )s-2-hydroxy-2-methyl-hexanoic acid |
| 02/01/1989 | EP0301945A2 Improved process for preparing substituted phthalic anhydrides |
| 02/01/1989 | EP0301879A2 Inhibition of polymerization during distillation of monomers |
| 02/01/1989 | EP0301447A2 Polymers of alkoxylated unsaturated quaternary ammonium salts, their preparation and their use |
| 02/01/1989 | EP0301446A2 Process for the production of carboxylic-acid halides |
| 02/01/1989 | EP0301402A1 Leukotriene antagonists, process for their preparation and their use in the treatment of illnesses |
| 02/01/1989 | EP0301311A2 Process for preparing naproxen |
| 01/31/1989 | US4801750 Diketene, hydrochlorination, chlorination, 2-chloroacetoacetic acid chloride, amidation |
| 01/31/1989 | US4801743 From allyl alcohol and catbon monoxide |
| 01/31/1989 | US4801735 Leukotriene inhibitors |
| 01/31/1989 | US4801722 Fluorescent labels |
| 01/31/1989 | US4801571 Silica-tin oxide support, cesium compound |
| 01/31/1989 | US4801569 Containing noncatalytic group 1a, 2a, 3a oxide-oxidation catalyst |
| 01/31/1989 | US4801567 Vanadium and phosphorus, production of maleic anhydride |
| 01/31/1989 | US4801358 Separation of acetic acid from dioxane by extractive distillation |
| 01/31/1989 | US4801357 Dimethyl sulfoxide |
| 01/31/1989 | CA1249599A1 Process for separating saturated fatty acids |
| 01/31/1989 | CA1249576A1 Coformed catalyst |
| 01/26/1989 | WO1989000564A1 Process for producing methyltetrahydrophthalic anhydride |
| 01/26/1989 | WO1989000452A1 Catalyst composition and method for selective dehydrogenation |
| 01/25/1989 | EP0300922A1 Process for the manufacture of derivatives of benzoic acid |
| 01/25/1989 | EP0300921A1 Process for the manufacture of benzoic acid and salts thereof |
| 01/25/1989 | EP0300497A1 Optically active compound, process for producing same and liquid crystal composition containing same |
| 01/25/1989 | EP0300325A2 Compositions for promoting growth of animals |
| 01/25/1989 | CN1030571A Method for manufacture of phthalic anhydride |
| 01/24/1989 | CA1249268A1 Pentanedioic acid derivatives |
| 01/19/1989 | DE3822628A1 Process for the treatment of lignin for obtaining aldehyde and/or phenolic acids |
| 01/18/1989 | EP0299891A1 Process for the selective chlorination of phenolic compounds |
| 01/18/1989 | EP0299760A1 Method for racemization of optically active chrysanthemic acid or its derivatives |
| 01/18/1989 | EP0299743A1 Recovery of acrylic acid and/or ethyl acrylate from black acid |
| 01/18/1989 | EP0299559A1 Process for the preparation of 2-aryloxypropionic acids |
| 01/18/1989 | EP0299425A1 Process for the production of high purity tartaric acid |
| 01/17/1989 | US4798911 Sulfur-free palladium and copper on carbon support |
| 01/17/1989 | US4798907 Controlled temperature process for making 2,2'-oxodisuccinates useful as laundry detergent builders |
| 01/17/1989 | US4798838 Anticoagulants, anticholesterol agents |
| 01/17/1989 | CA1248943A1 Fluorophenoxyphenoxypropionates and derivatives thereof |