| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/14/2003 | CN1417190A Prepn process of beta-hydroxyl-beta-methyl butyric calcium (HMB-Ca) |
| 05/14/2003 | CN1417189A Production process of itaconic anhydride |
| 05/14/2003 | CN1417188A Preparation process of metal formate/formic acid mixture |
| 05/14/2003 | CN1108287C Environmentally friendly process for preparing benzoic acid and its derivatives |
| 05/14/2003 | CN1108286C Process for extracting long-chain dicarboxylic acid from refined biological fermentation liquor |
| 05/14/2003 | CN1108285C Method for producing acrylic acid and methacrylic acid |
| 05/14/2003 | CN1108284C Process for preparing barium carboxylate by reaction of witherite on carboxylic acid |
| 05/14/2003 | CN1108192C Liquid catalyst for producing high-purity chloroacetic acid and catalytic synthesis of chloroacetic acid |
| 05/13/2003 | US6563001 Purifying by oxidation, using molecular oxygen or a gas containing it or using oxygen donors, the distillation residue obtained above containing substantially all of the acids formed, distilling the reaction solvent and the reaction |
| 05/13/2003 | US6563000 Catalytic oxidation of acrolein or acrolein-containing gas with molecular oxygen or a molecular oxygen-containing gas using a catalyst-filled fixed bed shell-and-tube reactor is provided, which is characterized in that plural catalysts of |
| 05/13/2003 | US6562999 Purifying 2,6-naphthalene dicarboxylic acid produced by disproportionation and recycling byproduct dipotassium salts |
| 05/13/2003 | US6562997 Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
| 05/13/2003 | US6562996 Formed by reacting toluene with carbon monoxide in the presence of carbonylation catalyst to form a tolualdehyde isomers |
| 05/13/2003 | US6562977 For use in the synthesis of peptides and/or for the manufacture of pharmaceutically active substances or corresponding intermediates |
| 05/13/2003 | US6562967 Drug screening; purity |
| 05/13/2003 | US6562966 Combining a racemic or a diastereomeric mixture of a chiral substrate with a nucleophile, in the presence of a chiral non-racemic catalyst |
| 05/13/2003 | US6562877 Recovery of dicarboxylic aromatic acids from polyester-resin contained in articles for recycling |
| 05/08/2003 | WO2003043967A1 Production of potassium formate |
| 05/08/2003 | WO2003038105A2 Sequences for the preparation of 5-ketogluconic acid from gluconic acid |
| 05/08/2003 | WO2002026750A8 Phosphino-aminophosphines, catalyst complexes and enantioselective hydrogenation |
| 05/08/2003 | US20030088128 Diaryl ether condensation reactions |
| 05/08/2003 | US20030088124 Redox process with a solid catalyst of oxides of molybdenum, vanadium, tellurium, niobium and, optionally, silicon |
| 05/08/2003 | US20030088121 Method for purifying crude 2,6-naphthalenedicarboxylic acid |
| 05/08/2003 | US20030088118 Catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase |
| 05/07/2003 | EP1307465A1 Direct synthesis of tin (ii) carboxylates and tin (iv) carboxylates from elemental tin or tin oxides |
| 05/07/2003 | EP1307418A2 Process for the preparation of chiral 1,4-diaryl-2-fluoro-2-butenes |
| 05/07/2003 | EP1220825B1 Process for hydrolytically obtaining a carboxylic acid and alcohol from the corresponding carboxylate |
| 05/07/2003 | EP1042273B1 Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores |
| 05/07/2003 | EP0824962B1 Use of an oxidation catalyst system and process for oxidation with the same |
| 05/07/2003 | EP0792270B1 Use of 2,7,8-trimethyl-2-(beta-carboxyethyl)-6-hydroxy chroman (LLU-alpha) |
| 05/07/2003 | EP0781165B1 Improved high performance vpo catalyst |
| 05/07/2003 | CN1416427A Method for producing maleic acid anhydride |
| 05/07/2003 | CN1416417A Process and intermediates for preparing cyclohexylnitrile |
| 05/07/2003 | CN1416414A Process for preparation of (R)-2-bromo-3-phenyl-propionic acid |
| 05/07/2003 | CN1416367A Hollow cylindrical catalyst and method for producing maleic acid anhydride |
| 05/07/2003 | CN1415719A Method for producing conjugation linoleic acid |
| 05/07/2003 | CN1415594A Method for preparing crotonic acid |
| 05/07/2003 | CN1415593A Method for preparing azelaic acid |
| 05/07/2003 | CN1107667C Cis-5,9,12-octade trienic acid derivative and its prepn. |
| 05/07/2003 | CA2411218A1 Process for the preparation of chiral alpha-hydroxycarboxylic acids |
| 05/06/2003 | US6559339 Method for crystallizing carboxylic acid |
| 05/06/2003 | US6559338 Method for racemate splitting of 2-hydroxypropionic acids |
| 05/06/2003 | US6559324 Free-flowing; reacting feedstock with calcium oxide and water under given conditions; feed supplement for ruminent animals |
| 05/06/2003 | US6558435 Reactive crystallization method to improve particle size |
| 05/06/2003 | CA2157937C Method and apparatus for manufacturing monocarboxylic acids from carbohydrates, carbohydrate derivatives or primary alcohols |
| 05/06/2003 | CA2142792C Catalyst and a process for preparing carboxylic acids using the catalyst |
| 05/02/2003 | EP1306362A1 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers |
| 05/02/2003 | EP1306361A2 Method for making high-purity naphthalenedicarboxylic acid |
| 05/02/2003 | EP1306129A1 Preparation of a mixed metal oxide catalyst and its use in oxidation and ammoxidation reactions |
| 05/02/2003 | EP1305346A2 Transformation of polymers to useful chemicals by oxidation |
| 05/02/2003 | EP1305273A1 Method for oxidising hydrocarbons, alcohols and/or ketones |
| 05/02/2003 | EP1305270A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids |
| 05/02/2003 | EP1305097A1 Regulation of a wash column in a melt cristallisation process |
| 05/02/2003 | EP1185496A4 Method of making hydrogenated acids |
| 05/02/2003 | EP1117484B1 Multilayered shell catalysts for catalytic gaseous phase oxidation of aromatic hydrocarbons |
| 05/02/2003 | EP1064288B1 Process for the preparation of bisphosphines |
| 05/02/2003 | EP0941231B1 Heteroarylic-arylic diphosphines as chiral ligands |
| 05/01/2003 | WO2003035636A2 Process for the preparation of 3 - isochromanone |
| 05/01/2003 | WO2003035597A1 Method for producing trans-1,4-cyclohexane dicarboxylic acid |
| 05/01/2003 | WO2003035596A2 Inhibitor mixture for (meth)acrylic acid and (meth)acrylic acid ester |
| 05/01/2003 | US20030083522 Anhydride stabilization |
| 05/01/2003 | US20030083511 Recovering 18-methyleicosanoic acid and/ or alpha hydroxyacids from woolwax acids or derivatives by heating to 100-230 degrees C., distilling the estolides and/or polymer and processing the distillate and residue; cosmetics for skin/hair |
| 05/01/2003 | US20030080320 Combining a tertiary amide with a pentavalent phosphorous halide in a solvent to form an alpha - haloiminium salt and converting the alpha -haloiminium salt to the alpha -haloenamine with a base |
| 04/30/2003 | CN1414942A Preparing method of 2-phenylalkanoic acid derivatives |
| 04/30/2003 | CN1414941A Compound having hydroxycarbonyl-halogenoalkyl side chain |
| 04/30/2003 | CN1414940A Process for recovery of purified terephthalic acid (PTA) |
| 04/30/2003 | CN1414939A Process for recovery and recycle of D-tartaric acid |
| 04/30/2003 | CN1413766A Treatment of mixed metal oxide catalyst |
| 04/30/2003 | CN1107047C Method for preparing (meth) acrylic acid |
| 04/30/2003 | CN1107046C Method for producing acrylic acid and acrylic acid esters |
| 04/30/2003 | CN1107044C Method for preparing 2-cyclododecyl-1-propanol |
| 04/29/2003 | US6555707 Cooling a gaseous reaction mixture of acrylic acid obtained by gas-phase oxidation, using an inert high-boiling solvent; separation into a low-boiling fraction, a crude acrylic acid, and a bottom product; esterifying; byproduct inhibition |
| 04/29/2003 | US6555704 Process for the carbonylation of arylalkyl halides |
| 04/24/2003 | WO2003033581A1 Method for recycling pet bottle |
| 04/24/2003 | WO2003033552A1 Process for the manufacture of polycarboxylic acids using phosphorous containing reducing agents |
| 04/24/2003 | WO2003033504A1 Method for producing, via organometallic compounds, organic intermediate products |
| 04/24/2003 | WO2003033503A2 Method for producing, via organometallic compounds, organic intermediate products |
| 04/24/2003 | WO2003033461A1 Synthesis of oxygen-substituted benzocycloheptenes, used as valuable intermediate products for producing tissue-selective oestrogens |
| 04/24/2003 | WO2003033453A1 Dicarboxylic acid derivatives, their preparation and therapeutical use |
| 04/24/2003 | WO2003033448A1 Method for isolating salts of organic acids from a fermentation broth and for releasing the organic acid |
| 04/24/2003 | WO2003033140A2 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 04/24/2003 | WO2003033138A1 Ethane oxidation catalyst and process utilising the catalyst |
| 04/24/2003 | US20030078453 Method for the synthesis of aliphatic carboxylic acids from aldehydes |
| 04/24/2003 | US20030078452 Method for making high-purity naphthalenedicarboxylic acid |
| 04/24/2003 | US20030078451 Catalytic solution system for manufacturing terephthalic acid and a method for same |
| 04/24/2003 | US20030075197 Two-component agent with a time-dependent pH and method of treating hair with said agent |
| 04/24/2003 | US20030074741 Forming a textile finishing agent with superior clarity; discoloration inhibition |
| 04/24/2003 | CA2464435A1 Synthesis of oxygen-substituted benzocycloheptenes, used as valuable intermediate products for producing tissue-selective oestrogens |
| 04/24/2003 | CA2463776A1 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 04/24/2003 | CA2462514A1 Dicarboxylic acid derivatives, their preparation and therapeutical use |
| 04/23/2003 | EP1304319A2 Metallocenes and processes therefor and therewith |
| 04/23/2003 | EP1303474A1 Process for the preparation of enantiomerically pure pyrethroid insecticides |
| 04/23/2003 | EP1303473A1 A process for the purification of aromatic carboxylic acids |
| 04/23/2003 | EP1185494B1 Method of gas phase catalytic oxidation to give maleic acid anhydride |
| 04/23/2003 | EP1137596B1 Polymetal oxide containing silver oxide and vanadium oxide and the use thereof |
| 04/23/2003 | EP1082283B1 Method for producing hexanediol-1,6 |
| 04/23/2003 | EP1059975A4 Purification of organic acids using anion exchange chromatography |
| 04/23/2003 | EP0966324B1 Method for producing shell catalysts for catalytic gas-phase oxidation of aromatic hydrocarbons |
| 04/23/2003 | EP0964744B1 Method for producing phthalic anhydride; shell catalyst containing titanium-vanadium-cesium |
| 04/23/2003 | CN1413183A Perfluorinated acid fluorides and preparation thereof |