| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/11/2000 | WO2000026200A1 An improved process for the preparation of new antidiabetic agents |
| 05/11/2000 | WO2000026178A1 Production of amides and/or acids from nitriles |
| 05/11/2000 | WO2000026176A1 A process for the preparation of alpha-arylalkanoic acids |
| 05/11/2000 | WO2000026171A1 Method for producing carboxylic acid chlorides |
| 05/11/2000 | WO2000026170A1 Method for racemate splitting of 2-hydroxypropionic acids |
| 05/11/2000 | WO2000026169A1 METHOD FOR THE TECHNOLOGICAL PRODUCTION OF 4'- CHLORO- α- METHYLENE- η- OXO-(1,1'- BIPHENYL)- 4'-BUTANE ACID |
| 05/11/2000 | DE19851786A1 Silber- und Vanadiumoxid enthaltendes Multimetalloxid und dessen Verwendung Silver and vanadium oxide as the active composition and its use |
| 05/11/2000 | DE19850857A1 Verfahren zur Herstellung von Carbonsäurechloriden A process for the preparation of carboxylic acid chlorides |
| 05/11/2000 | DE19850788A1 Verfahren zur Herstellung von Trifluorbenzoesäuren A process for preparing Trifluorbenzoesäuren |
| 05/11/2000 | DE19850695A1 Verfahren zur technischen Herstellung von 4'-Chlor-alpha-methylen-gamma-oxo-(1.1'-biphenyl)-4'-butansäure Process for the industrial preparation of 4'-chloro-alpha-methylene-gamma-oxo- (1,1'-biphenyl) -4'-butanoic acid |
| 05/11/2000 | CA2346941A1 An improved process for the preparation of new antidiabetic agents |
| 05/10/2000 | EP0999200A1 Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid |
| 05/10/2000 | EP0999199A1 Method of producing naphthalenedicarboxylic acid |
| 05/10/2000 | EP0999198A1 Process for the production of acetic acid |
| 05/10/2000 | EP0998853A1 Feed and method for its preparation |
| 05/10/2000 | EP0998443A1 Treatment of formaldehyde-containing mixtures |
| 05/10/2000 | EP0998442A1 Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide |
| 05/10/2000 | EP0883591B1 Process for preparing 1,6 hexane diol and caprolacton |
| 05/10/2000 | EP0745115B1 Use of carboxylic acid esters as fuel or lubricant additives and process for preparing the same |
| 05/10/2000 | CN1252789A 3-cyano-2,4,5-trifluoro-benzoyle fluoride and intermediate preparation thereof |
| 05/10/2000 | CN1252785A Preparing maleic anhydride by gas-phase catolyzing and oxidizing from n-butane with catalyst in-situ roasting/activation |
| 05/10/2000 | CN1252401A Carbonylation method |
| 05/09/2000 | US6060422 Oxidation of propane using metal oxide catalyst containing vanadium, antimony, and molybdenum |
| 05/09/2000 | US6060421 Oxide of molybdenum, vanadium, lanthanum, palladium, niobium, aluminum, germanium, gallium, and/or silicon; catalyst selectivity |
| 05/09/2000 | US6060419 Wells-Dawson type heteropolyacids, their preparation and use as oxidation catalysts |
| 05/09/2000 | CA2029650C Continuous industrial manufacturing process for an aqueous solution of glyoxylic acid |
| 05/09/2000 | CA1340989C Chemiluminescent 1, 2-dioxetane compounds |
| 05/04/2000 | WO2000024711A1 Synthesis of methylthiophenyl hydroxyketones |
| 05/04/2000 | WO2000024701A1 Carbonylation of methanol in the presence of a rhodium/iridium/iodide ion catalytic system |
| 05/04/2000 | WO2000024700A1 PROCESS FOR THE MANUFACTURE OF α,α-BRANCHED CARBOXYLIC ACIDS |
| 05/04/2000 | DE19850301A1 Verfahren zur Racematspaltung von 2-Hydroxypropionsäuren A method for resolution of 2-hydroxypropionic |
| 05/04/2000 | DE19850010A1 Reducing hydrolyzable fluorine content of organic compounds, especially halogenated carboxylic acids or derivatives for use e.g. as pharmaceutical or agrochemical intermediates |
| 05/04/2000 | CA2347768A1 Synthesis of methylthiophenyl hydroxyketones |
| 05/04/2000 | CA2288485A1 Preparation of trifluorobenzoic acids |
| 05/03/2000 | EP0997470A1 Optically active bisphosphinomethanes and their rhodium and copper complexes for catalytic asymmetric syntheses |
| 05/03/2000 | EP0996611A1 Process for the production of methyl methacrylate |
| 05/03/2000 | EP0996501A1 Method for regenerating a zeolitic catalyst |
| 05/03/2000 | EP0873289B1 Process for catalytic addition of nucleophiles to alkines or allenes |
| 05/03/2000 | EP0741667B1 Production of no from n 2?o |
| 05/03/2000 | CN1252067A Treatment of crude phthalic anhydride |
| 05/03/2000 | CN1252049A 2-substituted benzoyl-cycloalkyl-1-carboxylic acid derivatives |
| 05/03/2000 | CN1252048A Dicarboxylic acid crystallizates |
| 05/03/2000 | CN1252047A Improved method for producing crystalline carboxylic acid and apparatus therefor |
| 05/03/2000 | CN1252045A Preparation of cleaved products from castor oil or derivatives thereof |
| 05/03/2000 | CN1251833A Process for preparing substituted benzoic acid |
| 05/03/2000 | CN1051986C Method of inhibiting polymerization of vinyl compound in distillation |
| 05/02/2000 | US6057475 Process for the production of acetic acid |
| 05/02/2000 | US6057461 Diels alder reaction of naphthoquinone with diene |
| 05/02/2000 | US6057364 Fluoro-substituted adamantane derivatives |
| 05/02/2000 | US6057345 Substituted aryl and heteroaryl compounds as E-type prostaglandin antagonists |
| 05/02/2000 | CA2000179C Cyclopenteneheptenoic acid derivatives and method of preparation thereof |
| 04/29/2000 | CA2287713A1 Optically active bisphosphinomethanes and their rhodium and copper complexes for catalytic asymmetric syntheses |
| 04/27/2000 | WO2000023414A2 Synthesis of optically active cyclohexylphenylglycolic acid and its esters |
| 04/27/2000 | WO2000023413A1 Method for drying phenoxymethylbenzoic acids |
| 04/27/2000 | WO2000023412A2 Synthesis of conjugated polyunsaturated fatty acids |
| 04/27/2000 | WO2000002847A3 A process for the preparation of 4-carboxy- 5,8,11- tris(carboxymethyl)- 1-phenyl- 2-oxa- 5,8,11- triazatridecan- 13-oic acid |
| 04/27/2000 | DE19848200A1 Drying phenoxymethylbenzoic acid derivatives comprises heating at a temperature above their melting point and under the same temperature and pressure as during synthesis |
| 04/27/2000 | CA2347736A1 Synthesis of optically active cyclohexylphenylglycolic acid and its esters |
| 04/26/2000 | EP0994932A1 Overbased magnesium deposit control additive for residual fuel oils |
| 04/26/2000 | EP0994842A1 Recovery of fermentation salts from dilute aqueous solutions |
| 04/26/2000 | EP0994834A1 Ligated platinum group metal catalyst complex and improved process for catalytically converting alkanes to esters and derivatives thereof |
| 04/26/2000 | EP0707562B1 Production of dicarboxylic acids |
| 04/26/2000 | EP0641303B1 Bromine catalysed oxidation processes |
| 04/26/2000 | EP0562105B1 Process for preparing 2,6-naphthalenedicarboxylic acid |
| 04/26/2000 | CN1251319A Catalytic gas-phase oxidation method and pipe-casing type reactor |
| 04/25/2000 | US6054627 Hydrogenation catalyst, process for preparing and process of using said catalyst |
| 04/25/2000 | US6054611 Mixing biomass containing cellulose and hemicellulose with acid; heating solution to hydrolyze and form sugars which are reacted to form levulinic acid |
| 04/25/2000 | US6054610 Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| 04/25/2000 | US6054563 Reacting a carboxylate salt and rare earth nitrate in water and hydrocarbon solvent |
| 04/25/2000 | CA2137537C Process for preparing an iridium solution; solution thus obtained and use thereof as a catalyst |
| 04/20/2000 | WO2000021944A2 Selective oxidation process and catalyst therefor |
| 04/20/2000 | WO2000000284B1 Catalyst systems for the one step gas phase production of acetic acid from ethylene |
| 04/19/2000 | EP0994094A1 Process for manufacturing 3-chloropyruvic acid |
| 04/19/2000 | EP0993433A1 Method for producing calcium pyruvates |
| 04/19/2000 | EP0993427A1 Method for producing 2-cyclododecyl-1-propanol |
| 04/19/2000 | EP0757667B1 Processes for preparing aromatic, bromine-containing compounds, novel bromine-containing compounds, and their use as intermediate products in the synthesis of active agents |
| 04/19/2000 | CN1250769A Clean catalytic oxidization process for synthesizing adipic acid |
| 04/18/2000 | US6051736 Condensation of a gas comprising (meth)acrylic acid, absorption with water, and extraction with an aqueous solution forming a miscibility gap |
| 04/18/2000 | US6051735 Allowing corrosion inhibitor selected from: aliphatic alcohol, inorganic acid or salt, aromatic carboxylic acid or salt and zinc-containing salt to coexist with metallic salt of dithiocarbamic acid during production acrylic acid |
| 04/18/2000 | US6051732 Process for the preparation of 3-acetoxy-2-methylbenzoyl chloride |
| 04/13/2000 | WO2000020372A1 Molecular compounds containing novel carboxylic acid derivatives as the constituent compound |
| 04/13/2000 | WO2000020369A1 Stabilization and transport of alpha,beta-unsaturated carboxylic acid and removal of stabilizer |
| 04/13/2000 | WO2000020368A1 Aromatic acid monomers, polymers, products and processes for their manufacture |
| 04/13/2000 | WO2000020367A1 Process for the preparation of sorbic acid |
| 04/13/2000 | DE19829909C1 Reducing hydrolyzable fluorine content of organic compounds, especially halogenated carboxylic acids or derivatives for use e.g. as pharmaceutical or agrochemical intermediates |
| 04/12/2000 | EP0992483A1 Process for purifying a process stream |
| 04/12/2000 | EP0991793A1 Method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters |
| 04/12/2000 | EP0991617A1 Process for the production of carboxylic acid |
| 04/12/2000 | EP0991616A1 METHOD FOR PRODUCING MEDICAMENTS CONTAINING HMG-CoA-REDUCTASE INHIBITORS |
| 04/12/2000 | CN1250433A Process for the production of acetic acid |
| 04/12/2000 | CN1250432A Method for producing carboxylic acids or their esters by carbonylation of olefins |
| 04/12/2000 | CN1250428A Treatment of effluent streams containing organic acids |
| 04/12/2000 | CN1051297C Process for the removal of aldehydes and acetals from industrially prepared acetic acid |
| 04/12/2000 | CN1051296C A process for separating lipophilic compounds |
| 04/11/2000 | US6049019 Reacting cyclopropane carboxaldehyde with malonic acid or malonic acid substitute to form 3-cyclopropylacrylic acid;halogenating to form (e,z)-1-halo-2-cyclopropylethylene; reacting with strong base to form cyclopropyl acetylene |
| 04/11/2000 | US6049011 Hydroformylation process |
| 04/11/2000 | US6049005 Reacting alkoxycarbonyl butene with carbon monoxide in the presence of catatlyst comprising palladium and organic phosphine ligand |
| 04/11/2000 | US6049004 Oxidizing reactant selected form alcohols, esters, ethers, ketones, and aldehydes with nitric acid; mixing with solvent capable of extracting nitric acid from oxidation product to form pure organic acid |
| 04/11/2000 | US6049001 Fluorine-containing carboxylic acid compounds, methods for their production, and chemical processes utilizing the same |
| 04/11/2000 | US6048987 Process for producing coated catalysts for the synthesis of maleic anhydride by gas-phase oxidation |