| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
|---|
| 07/25/1991 | DE4002012A1 Olefinisch ungesaettigte addukte von ethylen an mehrfach ungesaettigte fettsaeuren bzw. fettsaeureester, verfahren zu ihrer herstellung und ihre verwendung Olefinic unsaturated adducts of ethylene to polyunsaturated fatty acids or fettsaeureester, process for their production and their use |
| 07/25/1991 | DE4002011A1 Gesaettigte, verzweigte fettsaeuren mit 20 bis 28 kohlenstoffatomen bzw. ester derselben mit c(pfeil abwaerts)1(pfeil abwaerts)-c(pfeil abwaerts)3(pfeil abwaerts)(pfeil abwaerts)6(pfeil abwaerts)-alkanolen, verfahren zu ihrer herstellung und ihre verwendung Saturated, fatty acids branched with 20 to 28 carbon atoms or ester thereof with c (Down Arrow) 1 (down arrow) -c (down arrow) 3 (arrow down) (Down Arrow) alkanols 6 (down arrow) to process their preparation and their use |
| 07/25/1991 | DE4002009A1 Gesaettigte, verzweigte fettsaeuren mit 21 bis 28 kohlenstoffatomen bzw. ester derselben mit c(pfeil abwaerts)1(pfeil abwaerts)-c(pfeil abwaerts)3(pfeil abwaerts)(pfeil abwaerts)6(pfeil abwaerts)-alkanolen, verfahren zu ihrer herstellung und ihre vrwendung Saturated, fatty acids branched with 21 to 28 carbon atoms or ester thereof with c (Down Arrow) 1 (down arrow) -c (down arrow) 3 (arrow down) (Down Arrow) alkanols 6 (down arrow) to process their production and vrwendung |
| 07/25/1991 | DE4002008A1 Olefinisch ungesaettigte addukte von propylen an mehrfach ungesaettigte fettsaeuren bzw. fettsaeureester, verfahren zu ihrer herstellung und ihre verwendung Olefinically unsaturated adducts of propylene with polyunsaturated fatty acids or fettsaeureester, processes for their preparation and their use |
| 07/24/1991 | EP0438369A2 Process for the isolation and purification of free iminodiacetic acid, starting from it's salt, by elektrodialysis |
| 07/24/1991 | EP0438143A1 Process for the preparation of dodecanedioic acid |
| 07/24/1991 | EP0437690A2 Process for asymmetric hydrogenation of alpha-ketocarbonyl-derivatives into optically active alpha-hydroxycarbonyl derivatives |
| 07/24/1991 | EP0437689A1 A method for fluorodecarboxylation |
| 07/24/1991 | EP0316367B1 Process for separating methacrylic acid from isobutyric acid |
| 07/24/1991 | CN1053232A Fungicides |
| 07/24/1991 | CN1053228A Prepn. of oxalic acid |
| 07/24/1991 | CA2034141A1 Preparation process for glyoxylic acid by catalytic oxidation of glyoxal in an aqueous medium in the presence of catalytic quantities of platinum |
| 07/23/1991 | US5034509 Method for improving the color and the stability of the color of carboxylic acid or a mixture of the same |
| 07/23/1991 | US5034368 Process for the preparation of carboxylic acids or esters thereof |
| 07/23/1991 | US5034161 Synthesis of aryl-substituted aliphatic acids |
| 07/23/1991 | US5034156 Nitrosophenylhydroxylamine and hydroquinone monomethyl ether as polymerization inhibitors |
| 07/23/1991 | US5034105 Electrodialysis, crystallization from a supersaturated solution, purification |
| 07/20/1991 | CA2034351A1 Process for the isolation and purification of free acids, starting from their salts, by electrodialysis |
| 07/18/1991 | DE4001160A1 Amidine carboxylic acid salts prodn. - by reacting tri:methyl ortho-carboxylate in presence of higher alcohol with ammonia or prim. amine and carboxylic acid or salt |
| 07/17/1991 | EP0437369A2 Formation and resolution of ibuprofen lysinate |
| 07/17/1991 | EP0436860A1 Process for the preparation of 2-(4-chlorophenyl)-3-methyl-butanoic acid |
| 07/17/1991 | CN1053019A Heterogeneous rhodium catalyst for methanol carbonylation reaction and prepn.thereof |
| 07/17/1991 | CN1053010A Pharmaceutical preparation |
| 07/17/1991 | CA2034167A1 Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds |
| 07/16/1991 | US5032686 Method for the recovery of citric acid from a liquor containing the same |
| 07/16/1991 | US5032564 Vanadium oxide and phosphoric acid to produce vanadyl pyrophosphate oxidation catalyst |
| 07/16/1991 | CA1286316C Method for refining 2-(aryl substituted)-propionic acid or its salt |
| 07/16/1991 | CA1286315C Indium formiate based powder for depositing a thin layer on a substrate, namelyglass, process for the preparation of said powder and method for depositing alayer of same |
| 07/11/1991 | WO1991009674A1 Catalyst for hydrogenation, dehydrosilylation or hydrosilylation, and its use |
| 07/11/1991 | DE4000163A1 Alpha-omega alkane di:carboxylic acids prepn. - by reaction of cycloalkene(s) with ozone, redn. of peroxide(s) and oxidn. in safe process |
| 07/11/1991 | CA2033871A1 Formation and resolution of dexibuprofen lysine |
| 07/10/1991 | EP0436379A2 A process for preparation of an aromatic carboxylic acid |
| 07/10/1991 | EP0436348A2 Pyridyl cyclopropane derivatives with fungicidal activity |
| 07/10/1991 | EP0436288A2 Membrane system and process for concentrating organic oxygenates |
| 07/10/1991 | CN1052846A One-step nonaqueous synthesizing process of stearate |
| 07/09/1991 | WO1991010684A1 Oxidized variants of gm-csf |
| 07/09/1991 | WO1991010673A1 Derivatives of pyran |
| 07/09/1991 | US5030753 Oxidation of trichloro-and/or tetrachloroethylene; by-product inhibition |
| 07/09/1991 | US5030751 Process for the preparation of mixed 2,2'-oxydisuccinate/carboxymethyloxysuccinate |
| 07/09/1991 | US5030749 Catalytic oxidation of mesitylene with cobalt, manganese, and bromine containing catalyst |
| 07/09/1991 | CA2073239A1 Derivatives of pyran |
| 07/09/1991 | CA2072587A1 Oxidized variants of gm-csf |
| 07/05/1991 | CA2032781A1 Fungicides |
| 07/03/1991 | EP0435841A1 Process for preparing ether carboxylate builders |
| 07/03/1991 | EP0435714A2 Process for the preparation of clorinated carboxylic acid clorides |
| 07/03/1991 | EP0435444A1 Branched surfactants and cutting oil formulations, using these surfactants, which resist microbial degradation |
| 07/03/1991 | EP0434896A1 Process for preparation of alpha-alkoxy acetic acids and their salts |
| 07/03/1991 | EP0434739A1 Process for the preparation of 4-sulfo-2-chlorobenzoic acid. |
| 07/03/1991 | CN1052660A Continuous industrial process for manufacturing aqueous solution of glyoxylic acid |
| 07/03/1991 | CA2020533A1 Separation of compositions containing water and organic oxygenates |
| 07/02/1991 | US5028738 Alkylation of pyruvic acid derivatives |
| 07/02/1991 | US5028737 Preparation of isopropylidene bis(phthalic acid) |
| 07/02/1991 | US5028734 Process for the selective preparation of alkenecarboxylic acid derivatives |
| 07/02/1991 | US5028723 Process for preparing 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylic acid/3,6-dioxa-1,2,4,5,7,8- octane hexacarboxylic acid mixtures |
| 07/02/1991 | US5028576 Carbonylation catalyst system |
| 07/02/1991 | CA1285574C Process for preparing sertraline intermediates |
| 07/02/1991 | CA1285564C 1-heteroaryl-4-¬(2,5-pyrrolidinedion-1-yl)alkyl|piperazine derivatives |
| 06/26/1991 | EP0434389A2 Use of fatty acid nitrogen derivatives in fatty acid halide preparation |
| 06/26/1991 | EP0434343A1 Process for preparing ibuprofen and its alkyl esters |
| 06/26/1991 | EP0433848A1 Crystalline magnesium valproate and a method for the preparation thereof |
| 06/26/1991 | EP0433424A1 Improved asymmetric catalytic hydrogenation of alpha-arylpropenoic acids. |
| 06/26/1991 | EP0433420A1 Process for making symmetrical di-fatty acid diamides. |
| 06/26/1991 | CN1052514A Process for preparing butanetetra-carboxylic acid |
| 06/26/1991 | CN1052478A Lmproved process for preparing vinyl ethers |
| 06/26/1991 | CN1012954B Process for separating residue from industrial p-phthalic acid |
| 06/25/1991 | US5026940 Reacting biphenyl or 4-isopropylbiphenyl with propylene |
| 06/25/1991 | US5026908 Methanol carbonylation process |
| 06/25/1991 | US5026907 High efficiency, selectivity with lithium, sodium or potassium iodide combined with phophorous ligand of complex; reacting alcohol, ester and carbon monoxide |
| 06/25/1991 | US5026904 Catalytic reaction of carbon dioxide and hydrogen with alcohols |
| 06/25/1991 | US5026884 Reductive coupling of carbon compounds via transition metal complexes |
| 06/25/1991 | US5026876 Process for producing maleic anhydride |
| 06/25/1991 | US5026461 Using an aqueous solution of ceric compound, ruthenium tetroxide and acid solubilizer and an organic phase of organic acid and cyclododecene |
| 06/24/1991 | CA2032360A1 Process for the preparation of 2-(4-chlorophenyl)-3-methylbutyric acid |
| 06/19/1991 | EP0433267A2 Process for preparing eicosatetraynoic acid |
| 06/19/1991 | EP0433260A2 Process for preparing butanetetracarboxylic acid |
| 06/19/1991 | EP0433191A1 Process for preparing 1,6-hexendioic acids from butendiol |
| 06/19/1991 | EP0433190A1 Process for preparing 1,6-hexendioic acids |
| 06/19/1991 | EP0433189A1 Process for the preparation of diesters of hexenedioic acid |
| 06/19/1991 | EP0433124A1 2,4-Dichloro-5-fluorobenzonitrile and methods for its preparation, its use in the preparation of 2-chloro-4,5-difluorobenzoic acid and new method of preparation of this acid |
| 06/19/1991 | EP0432913A2 Oxidation of polyoxypropylene glycols |
| 06/19/1991 | EP0432910A2 Process for producing highly pure 2, 6 naphthalene dicarboxylic acid |
| 06/19/1991 | EP0432797A2 Process for purification of 3,4,5,6-tetrahydrophthalic anhydride |
| 06/19/1991 | EP0432610A2 Concurrent production of citric acid and alkali citrates |
| 06/19/1991 | EP0432541A2 Process for preparing alpha-omega alkanoic dicarboxylic acids |
| 06/19/1991 | CN1052301A Improvement of synthesis method for "fenbufen" |
| 06/19/1991 | CN1052300A Synthesizing 4,4'-diphenyl ether diformic acid from p-nitrophenyl formic acid |
| 06/19/1991 | CN1052299A Method for removing hydrogen fluoride from mixtures comprising aromatic ketones |
| 06/19/1991 | CN1012896B Improved process for preparing 5-(2.5-dimethylphenoxy)-2.2-dimethylpentanoic acid |
| 06/19/1991 | CA2031340A1 Process for preparing ibuprofen and its alkyl esters |
| 06/18/1991 | US5025105 Process for preparing bromodifluoroacetylfluoride |
| 06/18/1991 | US5024731 Method of manufacturing material for medical and pharmaceutical products from pyroligneous acid |
| 06/15/1991 | WO1991009004A1 Ester hydrolysis and depolymerization of polyester and polycarbonate polymers |
| 06/15/1991 | WO1991009002A1 Process for the preparation of vinyl ethers |
| 06/15/1991 | CA2069500A1 Ester hydrolysis and depolymerization of polyester and polycarbonate polymers |
| 06/13/1991 | WO1991008204A1 Process for the production of aromatic anhydrides and aromatic esters with superior color properties |
| 06/13/1991 | WO1991008185A1 Process for producing methacrolein and methacrylic acid |
| 06/12/1991 | EP0431869A2 Method for removing hydrogen fluoride from mixtures comprising aromatic ketones |
| 06/12/1991 | EP0431589A2 Process for producing copper formate |
| 06/12/1991 | EP0431373A2 Processes for producing 5-fluorbenzoic acids and their intermediates |
| 06/12/1991 | EP0431349A2 Process for preparing trichloroacetyl chloride |