| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 08/09/2001 | WO2001056966A1 MANUFACTURING PROCESS FOR THE PREPARATION OF α-BRANCHED CARBOXYLIC ACIDS HAVING A DECREASED CONTENT OF BETA-BRANCHED ISOMERS |
| 08/09/2001 | WO2001056965A2 MANUFACTURING PROCESS FOR THE PREPARATION OF α,α,α",α"-BRANCHED DICARBOXYLIC ACIDS |
| 08/09/2001 | WO2001056962A1 Perfluoroisopropylbenzene derivatives |
| 08/09/2001 | WO2001021565A3 Process for producing 3-bromobenzoyl halides |
| 08/09/2001 | WO2001019768A3 Method for producing acid chlorides |
| 08/09/2001 | US20010012909 Catalytic oxidation of olefin, alcohol or aldehyde |
| 08/09/2001 | DE10004911A1 Preparation of sorbic acid and its esters or their derivatives from propyne and acrylate involves using ruthenium-containing transition metal catalyst |
| 08/09/2001 | DE10004717A1 3,5-bis-(Trifluoromethyl)-benzoyl chloride preparation in high yield in 4 stages from readily available 3,5-dimethyl-benzoic acid, for use as intermediate for drugs, pesticides or photoresistant |
| 08/08/2001 | EP1122234A2 Production methods of alpha, alpha, alpha-trifluoromethylphenyl-substituted benzoic acid and intermediate therefor |
| 08/08/2001 | EP1122044A1 Waterproofing/preservative compositions |
| 08/08/2001 | EP1121857A1 Preparation of quarternary ammonium carbonates |
| 08/08/2001 | CN2441551Y Oxidizing reactor for terephthalic aicd |
| 08/08/2001 | CN1307558A Process for the preparation of 4-carboxy-5,8,11-tris (carboxymethyl)-1-phenyl-2-oxa-5,8,11-triazatridencan-13-oic acid |
| 08/08/2001 | CN1307555A Controlled oxidation of hydrocarbons to intermediate oxidation products |
| 08/08/2001 | CN1307554A Method of preparing alkyl carboxylic acid by carboxylation of lower alkanes methane |
| 08/08/2001 | CN1307553A Process for solid phase synthesis of aldehyde ketone oxime, amine, hydroxamic acid and alpha, beta-unsaturated carboxylic acid and aldehyde compounds |
| 08/08/2001 | CN1069305C Method for inhibiting vinyl compound polymerization |
| 08/08/2001 | CN1069304C Method for prepn. of diacid by using washing water from cyclohexane oxidation products |
| 08/08/2001 | CN1069303C Process for carbonylation of alkyl alcohols |
| 08/07/2001 | US6271417 Process for producing 3-bromobenzoyl halides |
| 08/07/2001 | US6271411 Process for preparing 2-aryl-substituted indenes |
| 08/07/2001 | US6271405 Method for manufacturing betulinic acid |
| 08/07/2001 | US6271269 Organic colloidal dispersions of acidic metal values |
| 08/07/2001 | US6271258 Process for the preparation of stable, non-hygroscopic salts of L(-)carnitine |
| 08/07/2001 | US6271169 Molybdenum based oxidation catalysts |
| 08/07/2001 | US6270843 Process for generating useful electrophiles from common anions and their application in electrophilic reactions with organic substrates |
| 08/07/2001 | CA2042548C Improved phosphorous/vanadium oxidation catalyst |
| 08/07/2001 | CA2029084C Process for preparing 1,2,3,4-butanetetracarboxylic acid |
| 08/03/2001 | CA2333444A1 Process for the preparation of 3,5-bis(trifluoro-methyl)-benzoyl, chlorides and novel 3,5-bis(tri-halogenomethyl)-and 3,5-dimethylbenzoyl halides |
| 08/02/2001 | WO2001055086A1 Alkynylsubstituted propionic acid derivatives and their use against diabetes and obesity |
| 08/02/2001 | WO2001055078A1 Calcium dicarboxylate ethers, methods of making same, and treatment of vascular disease and diabetes therewith |
| 08/02/2001 | WO2001055077A2 Facility and method for the production of anhydrous formic acid |
| 08/02/2001 | WO2001055076A2 Purification method for (meth)acrylic acid |
| 08/02/2001 | WO2001055075A2 Process for the recovery of crude terephthalic acid (cta) |
| 08/02/2001 | WO2001055074A1 Process for producing optically active carboxylic acid substituted in 2-position |
| 08/02/2001 | WO2001055073A2 Oxidation of o-xylol to produce o-tolyl acid |
| 08/02/2001 | WO2001055072A2 Method for producing phthalic acid anhydride |
| 08/02/2001 | WO2001055071A1 Utilization of an extracting agent as antifoaming agent in the production of anhydrous formic acid |
| 08/02/2001 | WO2001055070A2 Method for cleaning off-gas flows |
| 08/02/2001 | WO2001055069A2 Waste water treatment in a method for producing formic acid which is free of water |
| 08/02/2001 | DE10003498A1 (Meth)acrylic acid purification using a combination of two or more different dynamic (especially suspension and layer) crystallisation processes |
| 08/02/2001 | DE10002795A1 Werkstoff für eine Anlage zur Herstellung von wasserfreier Ameisensäure Material for a plant for the production of anhydrous formic acid |
| 08/02/2001 | CA2398041A1 Process for the recovery of crude terephthalic acid (cta) |
| 08/02/2001 | CA2396372A1 Alkynylsubstituted propionic acid derivatives and their use against diabetes and obesity |
| 08/01/2001 | EP1120391A1 Molecular compounds containing novel carboxylic acid derivatives as the constituent compound |
| 08/01/2001 | EP1119541A1 Aromatic acid monomers, polymers, products and processes for their manufacture |
| 08/01/2001 | EP1119410A2 Selective oxidation process and catalyst therefor |
| 08/01/2001 | CN1306537A Furylphosphines and organometallic complexes contg. them |
| 08/01/2001 | CN1305985A Process for preparing intermediate of Xidinafei |
| 08/01/2001 | CN1069094C Method for mfg. carboxylate of lanthanide metals |
| 07/31/2001 | US6268535 Synthesis of 3-aryl-1-indanamines |
| 07/31/2001 | US6268530 Process to prepare 5-formylvaleric acid |
| 07/31/2001 | US6268529 Method for the manufacture of acrylic acid |
| 07/31/2001 | US6268528 Method of producing naphthalenedicarboxylic acid |
| 07/31/2001 | US6268527 Reacting trifluoromethyl substituted aromatic compound with carbon monoxide and hydroxy compound in presence of metal compound and phosphine derivative to produce trifluoromethyl substituted benzoic acid derivative |
| 07/31/2001 | US6268526 Mixture formed from an aromatic substituted alcohol and/or an aromatic substituted alkyl halide, and a copper-free palladium catalyst is carbonylated with carbon monoxide to produce alpha-substituted carboxylic acid or ester |
| 07/31/2001 | US6268525 Process for producing optically active chrysanthemic acid |
| 07/26/2001 | WO2001053246A1 Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
| 07/26/2001 | WO2001053245A1 Oxidation of alkyl aromatic compounds to aromatic acids in an aqueous medium |
| 07/26/2001 | WO2001053244A1 Method for producing anhydrous formic acid |
| 07/26/2001 | WO2001053243A1 Novel arylpropionaldehyde derivatives and production and use of the same |
| 07/26/2001 | WO2001053240A1 Method for producing carboxylic acids by alcohol oxidation |
| 07/26/2001 | WO2001052983A1 Vanadium-phosphorus oxide catalysts with promoter reagents |
| 07/26/2001 | WO2001016068A3 Disproportionation catalyst |
| 07/26/2001 | US20010009885 Manufacture of acrylic acid by oxidation of acrolein |
| 07/26/2001 | DE10002945A1 Enantio- or diastereo-selective preparation of valproic acid or valproic acid amide analogs for use as antiepileptic agents, by 4- or 5-stage process using (+)- or (-)-camphor-sultam as chiral auxiliary |
| 07/26/2001 | DE10002810A1 Production of phthalic anhydride from o-xylene includes removing toluene from xylene recycle stream to increase selectivity |
| 07/26/2001 | DE10002807A1 Catalytic oxidation of o-xylene, especially in manufacture of phthalic anhydride, comprises adding o-tolualdehyde to o-xylene to compensate for catalyst activity loss |
| 07/26/2001 | DE10002794A1 Production of anhydrous formic acid involves hydrolysis of methyl formate, steam distillation, extraction with amide and further distillations, with prior use of steam for stripping aqueous extraction residue |
| 07/26/2001 | DE10002793A1 Production of anhydrous formic acid involves hydrolysis of methyl formate followed by distillation, extraction with amide and further distillations, using the amide also as a foam suppressant in first distillation stage |
| 07/26/2001 | DE10002791A1 Production of anhydrous formic acid by hydrolyzing methyl formate comprises introducing methanol-containing methyl formate into distillation column used to distil hydrolysis mixture |
| 07/26/2001 | DE10002790A1 Production of anhydrous formic acid involves hydrolysis of methyl formate followed by distillation, extraction with amide and further distillation stages, using the same extractant to wash useful products out of the off-gas |
| 07/26/2001 | DE10002264A1 Preparation of 3-(4-tolyl)-8,9-dihydro-7H-benzocyclohepten-6-carboxylic acid derivatives from 4-methylbiphenyl, useful as intermediates for antiviral agents |
| 07/26/2001 | CA2396967A1 Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
| 07/26/2001 | CA2395804A1 Oxidation of alkyl aromatic compounds to aromatic acids in an aqueous medium |
| 07/25/2001 | EP1118324A1 Analgesic agent comprising a cyclobutanedicarboxylic acid derivative |
| 07/25/2001 | EP1117484A1 Multilayered shell catalysts for catalytic gaseous phase oxidation of aromatic hydrocarbons |
| 07/25/2001 | EP1117482A1 Method for producing catalysts for synthesising maleic anhydride by means of gas phase oxidation |
| 07/25/2001 | EP1117480A1 High surface area sol-gel route prepared oxidation catalysts |
| 07/25/2001 | EP0937025B1 Manufacture of adipic acid |
| 07/25/2001 | EP0912479B1 Process for the manufacture of alpha-hydroxycarbonyl compounds |
| 07/25/2001 | EP0906257B1 Mixtures containing monomers and stabilizers |
| 07/25/2001 | CN1305500A Separations using ampholytic basic polymers |
| 07/25/2001 | CN1305452A Method for purifying acrylic acid or methacrylic acid by crystallization and distillation |
| 07/25/2001 | CN1305451A Preparation of organic acids |
| 07/25/2001 | CN1305446A production of organic compounds which are low in fluoride |
| 07/25/2001 | CN1305437A Process for producing anionic days using magnesium acetate |
| 07/25/2001 | CN1304923A Preparing process and application of calcium levulinate |
| 07/25/2001 | CN1304776A Parallel connection technology for flash tanks of terephthalic acid mother liquid |
| 07/25/2001 | CN1068867C Preparation method of 2,3,4,5-tetrafluorobenzonc acid |
| 07/25/2001 | CN1068866C Process for producing terephthalic acid |
| 07/24/2001 | US6265619 Hydroformylating ethylene and ethylenically unsaturated hydrocarbon to form propionaldehyde and aldehyde; subjecting to cross-aldolization to produce unsaturated aldehyde |
| 07/24/2001 | US6265608 Oxidizing dialkylaromatic to aromatic dicarboxylic acid, aromatic dicarboxylic acid-color bodies and an aromatic carboxylic acid aldehyde; contacting products with hydrogen in presence of palladium catalyst; adding carbon monoxide |
| 07/24/2001 | US6265607 Process for the preparation of 4-(4'-chlorobiphenyl-4-yl)-4-keto-2-methylenebutyric acid |
| 07/19/2001 | WO2001051597A2 Method for commercial preparation of preferred isomeric forms of ester free conjugated fatty acids in polyether alcohol containing solvents |
| 07/19/2001 | WO2001051455A1 Process and intermediates for preparing a cyclohexylnitrile |
| 07/19/2001 | WO2001051451A2 Methods for manufacturing betulinic acid |
| 07/19/2001 | WO2001051450A2 Synthesis and use of dimethyl-1,5-naphthalenedicarboxylates and intermediates therefrom |
| 07/19/2001 | WO2001051449A1 Method for producing enantiomer-pure analogs of valproic acid |
| 07/19/2001 | WO2001051448A2 Method of gas phase catalytic oxidation to give maleic acid anhydride |