| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 06/09/1998 | US5763662 Method for producing formic acid of its derivatives |
| 06/09/1998 | US5763659 Preparation of optically active 2-halopropionic acids |
| 06/09/1998 | US5763658 Hydrophobic smectite clay |
| 06/09/1998 | US5763656 Method of preparing tartaric acid |
| 06/09/1998 | US5763655 Preparation of pentenoic acids via hydroxycarbonylation of butadiene |
| 06/09/1998 | US5763654 Process for the production of acetic acid by the carbonylation of dimethyl ether |
| 06/09/1998 | US5763652 Process for producing a carboxylic acid |
| 06/09/1998 | US5763651 Process for manufacturing polyene esters and acids |
| 06/09/1998 | US5763649 Process for producing aromatic carboxylic acids |
| 06/09/1998 | US5763648 Process for producing an aromatic carboxylic acid |
| 06/09/1998 | US5763481 Vinylcarboxylic acid derivatives |
| 06/09/1998 | US5763373 Tall oil, water, surfactant, alkaline earth metal salt dispersion |
| 06/09/1998 | CA2128719C Production method of high purity isomers of benzenedicarboxylic acids |
| 06/04/1998 | WO1998023573A1 Purification of acrylic acid obtained by catalytic oxidation of propylene |
| 06/04/1998 | WO1998023572A1 Solvent assisted process for recovery of phthalic anhydride in the liquid phase by distillation |
| 06/04/1998 | WO1998023571A1 Liquid phthalic anhydride recovery process using a rectification tower with benzoic acid control |
| 06/04/1998 | WO1998023371A1 Shell catalyst for producing acetic acid by gas phase oxidation of unsaturated c4 hydrocarbons |
| 06/04/1998 | DE19649827A1 Verfahren zur Racemisierung von substituierten 4-Ketocarbonsäuren A process for the racemization of substituted 4-ketocarboxylic acids |
| 06/04/1998 | DE19649426A1 Schalenkatalysator zur Herstellung von Essigsäure durch Gasphasenoxidation von ungesättigten C¶4¶-Kohlenwasserstoffen A coated catalyst for preparing acetic acid by gas-phase oxidation of unsaturated hydrocarbons C¶4¶ |
| 06/04/1998 | CA2272461A1 Purification of acrylic acid obtained by catalytic oxidation of propylene |
| 06/03/1998 | EP0845452A1 HOAC process III |
| 06/03/1998 | EP0782399A4 Hydroxycitric acid concentrate and method of making |
| 06/03/1998 | CN1183811A Method for isolation and purification of lipid cell-wall components |
| 06/03/1998 | CN1183761A Recovery of acetic acid from dilute aqueous streams formed during carbonylation process |
| 06/03/1998 | CN1183760A Method for oxidising hydrocarbons, alcohols or ketones using heterogeneous catalyst |
| 06/03/1998 | CN1038580C Process for production of terephthalic acid |
| 06/02/1998 | US5760288 Process for producing aromatic carboxylic acid |
| 06/02/1998 | US5760287 Process for the resolution of 6-methoxy-alpha-methyl-2-naphthaleneacetic racemic acid into its enantiomers |
| 06/02/1998 | US5760284 Process and catalyst for carbonylating olefins |
| 06/02/1998 | US5760279 Process for the carbonylation of alkyl alcohols |
| 06/02/1998 | US5760217 Porphyrins and their synthesis from dipyrromethanes and aldehydes |
| 06/02/1998 | US5760088 Wood preservatives comprising microbiocides |
| 06/02/1998 | US5759826 Process of preparing an organic acid |
| 06/02/1998 | US5759358 Process for pure grade acrylic acid |
| 05/29/1998 | CA2191684A1 Recycle heat exchange flash treater and process |
| 05/28/1998 | WO1998022484A1 Heteroarylic-arylic diphosphines as chiral ligands |
| 05/28/1998 | WO1998022436A1 Substituted 4-biphenyl-4-hydroxybutyric acid derivatives as matrix metalloprotease inhibitors |
| 05/28/1998 | WO1998022421A1 Process for the simultaneous preparation of acrylonitrile and acrylic acid |
| 05/28/1998 | WO1998022420A1 Process for the production of acetic acid |
| 05/28/1998 | WO1998022419A1 Method for preparing a 4-hydroxybenzaldehyde and derivatives |
| 05/28/1998 | WO1998022216A1 Production of aromatic carboxylic acids and recovery of co/mn cattalyst from ash |
| 05/28/1998 | CA2271421A1 Process for the simultaneous preparation of acrylonitrile and acrylic acid |
| 05/28/1998 | CA2268770A1 Substituted 4-biphenyl-4-hydroxybutyric acid derivatives as matrix metalloprotease inhibitors |
| 05/27/1998 | EP0844251A1 Process for the production of ruthenium (III) acetate solution |
| 05/27/1998 | EP0844230A2 Optical resolution method of (plus, minus)-3,4-dihydroxybutanoic acid |
| 05/27/1998 | CN1183093A Process for preparation of esters of stilbenedicarboxylic acid |
| 05/27/1998 | CN1182733A Method for producing diethyl ester by alcohol dehydration |
| 05/26/1998 | US5756858 Process for the preparation of substituted phenylacetic acid derivatives and novel intermediates |
| 05/26/1998 | US5756853 Multistage reaction of phenol by carboxylation, hydroxymethylation, oxidation and decarboxylation |
| 05/26/1998 | US5756849 Reducing concentration needed |
| 05/26/1998 | US5756840 Process for the preparation of a particularly pure monochloroacetic |
| 05/26/1998 | US5756838 Method of asymmetrically synthesizing optically active compounds using supported phase chiral sulfonated BINAP catalyst |
| 05/26/1998 | US5756837 Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid |
| 05/26/1998 | US5756836 Reacting methanol or methyl acetate with carbon monoxide in presence of catalyst |
| 05/26/1998 | US5756834 Process for preparing fluorinated aromatics |
| 05/26/1998 | US5756833 Catalytic purification and recovery of dicarboxylic aromatic acids |
| 05/26/1998 | US5756814 Vinyl compound, its synthetic intermediates and processes for producing the same |
| 05/26/1998 | US5756000 Water soluble, fluorine-free surfactants |
| 05/26/1998 | US5755975 Separation of substances from a liquid mixture by crystallization |
| 05/22/1998 | WO1998020966A1 Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating hold-up time in multi-stage arrangement |
| 05/22/1998 | WO1998015517A3 Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant |
| 05/22/1998 | CA2291080A1 Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating hold-up time in multi-stage arrangement |
| 05/20/1998 | EP0842137A1 A process for the preparation of cyclopropane carboxylic acids and intermediates therefor |
| 05/20/1998 | EP0714447B1 Process for preparing (l)-2-chlorpropionic acid and its salts |
| 05/20/1998 | EP0636600B1 Method of purifying aromatic dicarboxylic acid |
| 05/20/1998 | EP0629183B1 Mixed magnesium/zinc basic soaps |
| 05/20/1998 | CN1182074A Production process of solid sodium formate and production process of oxalic acid including the same |
| 05/20/1998 | CN1182068A Process for separation of mixture of enantiomers |
| 05/20/1998 | CN1038409C Process for production of terephthalic acid |
| 05/19/1998 | US5753495 Process for the preparation of (L)-2-chloropropionic acid and its salts using lipase from pseudomonas |
| 05/14/1998 | WO1998019988A1 Alpha-branched fluoroalkylcarbonyl fluorides and their derivatives |
| 05/14/1998 | WO1998019987A1 Manufacture of adipic acid |
| 05/14/1998 | WO1998019986A1 A method for the production of levulinic acid and its derivatives |
| 05/14/1998 | WO1998019984A1 Process for the preparation of an aldehyde |
| 05/14/1998 | WO1998019789A1 Methods and devices for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator |
| 05/14/1998 | WO1998019511A2 Method for the preparation of citalopram |
| 05/14/1998 | DE19646378A1 Recycling di:carboxylic acids and di:ol(s) from polyester waste |
| 05/14/1998 | CA2270532A1 Methods and devices for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator |
| 05/14/1998 | CA2270521A1 Process for the preparation of an aldehyde |
| 05/14/1998 | CA2267603A1 Manufacture of adipic acid |
| 05/13/1998 | CN1181371A Method for purification of 2-hydroxynaphthalene -6 -carboxylic acid |
| 05/13/1998 | CN1181370A Method for prepn. of trichlorine acetylchloride |
| 05/12/1998 | US5750815 Olefin metathesis coupling using ruthenium and osmium carbene complexes |
| 05/12/1998 | US5750791 Producing diamines and diacids |
| 05/12/1998 | US5750779 Preparation process of acyl halide or sulfonyl halide |
| 05/12/1998 | US5750778 Fungicide intermediates |
| 05/12/1998 | US5750777 Process for the preparation of carboxylic acids by controlled oxidation of the corresponding alkanes |
| 05/12/1998 | US5750776 Production of dicarboxylic acids or esters thereof |
| 05/12/1998 | US5750732 Solvent extraction; dehydration |
| 05/12/1998 | US5750731 Perfluorinated aromatic compounds |
| 05/12/1998 | US5750679 Process for obtaining pharmacologically active compounds from complex mixtures of substances |
| 05/12/1998 | US5750007 Process for the recovery of a carbonylation product |
| 05/12/1998 | CA2013743C Preparation of glutaric acid derivatives |
| 05/07/1998 | WO1998018750A1 Process for preparing aromatic dicarboxylic acids |
| 05/07/1998 | WO1998018749A1 Production of aromatic carboxylic acids |
| 05/07/1998 | WO1998018748A1 Method for preparing compounds with terminal acetylenic bonds |
| 05/07/1998 | DE19645066A1 Production of catalyst for oxidation of butane to maleic anhydride |
| 05/07/1998 | CA2267413A1 Production of aromatic carboxylic acids |
| 05/07/1998 | CA2241568A1 Process for preparing aromatic dicarboxylic acids |
| 05/06/1998 | EP0839897A1 Method for producing conjugated linoleic acid |