| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/26/2000 | US6124498 Hydroxynaphthoic acids and derivatives |
| 09/26/2000 | US6124485 Reacting a wittig salt in a solvent with a butenolide in the presence of a weak base and a lewis acid. |
| 09/26/2000 | US6124122 Process for preparing optically pure (S)-3-hydroxy-γ-butyrolactone |
| 09/26/2000 | US6124105 Method for detecting the presence of a mycobacterium species and a kit and antibodies for use therein |
| 09/21/2000 | WO2000055279A1 Inhibitor composition for stabilising radically polymerisable substances |
| 09/21/2000 | WO2000055165A1 Catalytic method for modifying carbohydrates, alcohols, aldehydes or polyhydroxy compounds |
| 09/21/2000 | DE19911405A1 Inhibitorkomposition zur Stabilisierung von radikalisch polymerisierbaren Substanzen Inhibitor composition for the stabilization of radically polymerizable substances |
| 09/21/2000 | DE19910866A1 Verfahren und Vorrichtung zur Herstellung von gesättigten Carbonsäuren mit ein bis vier C-Atomen Method and apparatus for preparing saturated carboxylic acids having from one to four carbon atoms |
| 09/21/2000 | DE19910508A1 Verfahren der katalytischen Gasphasenoxidation von Acrolein zu Acrylsäure A method of catalytic gas phase oxidation of acrolein to acrylic acid |
| 09/21/2000 | CA2365295A1 Catalytic method for modifying carbohydrates, alcohols, aldehydes or polyhydroxy compounds |
| 09/20/2000 | EP1036056A1 Process to separate rhodium from an organic mixture |
| 09/20/2000 | EP1036055A2 Method for producing chlorocarboxylic acid chlorides |
| 09/20/2000 | EP0804403B1 A method for forming two terminal carboxylic acid groups from an ozonide |
| 09/20/2000 | EP0773919B1 Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof |
| 09/20/2000 | CN1267344A Method for recovery of formic acid |
| 09/20/2000 | CN1267278A Improved process for separating pure terephthalic acid |
| 09/20/2000 | CN1267236A Method for producing multi-metal oxide masses contg. Mo, V and Cu |
| 09/20/2000 | CN1266846A Production of cyclenyl polyenic ester |
| 09/20/2000 | CN1266845A Process for preparing cyano acetate |
| 09/20/2000 | CN1266841A Synthesis of 5(6)-caproleic acid |
| 09/19/2000 | US6121491 Process for the preparation of (+/-)3-(3,4-dichlorophenyl)-2-dimethylamino-2-methylpropan-1-OL or cericlamine (INN) |
| 09/19/2000 | US6120654 Continuous distillation; discoloration inhibition |
| 09/19/2000 | CA2194423C Process for the production of terephthalic acid |
| 09/19/2000 | CA2011294C Carbonylation catalyst system |
| 09/19/2000 | CA2011292C Carbonylation catalyst system |
| 09/19/2000 | CA2000442C Preparation of acyl chlorides |
| 09/14/2000 | WO2000053561A1 Fractional condensation of a product gas mixture containing acrylic acid |
| 09/14/2000 | WO2000053560A1 Method for producing acrylic acid |
| 09/14/2000 | WO2000053559A1 Method for the catalytic gas phase oxidation of acrolein into acrylic acid |
| 09/14/2000 | WO2000053558A1 Method for the catalytic gas phase oxidation of propene into acrylic acid |
| 09/14/2000 | WO2000053557A1 Method for the catalytic gas phase oxidation of propene into acrylic acid |
| 09/14/2000 | WO2000053556A1 Method for the catalytic gas phase oxidation of propene into acrolein |
| 09/14/2000 | WO2000053555A1 Method for carrying out the heterogeneously catalyzed gas phase oxidation of propane into acrolein and/or acrylic acid |
| 09/14/2000 | DE19910628A1 Production of saturated carboxylic acids by gas-phase oxidation of butane and/or butenes |
| 09/14/2000 | DE19910507A1 Verfahren der heterogen katalysierten Gasphasenoxidation von Propan zu Acrolein und/oder Acrylsäure A process for the heterogeneously catalyzed gas-phase oxidation of propane to acrolein and / or acrylic acid |
| 09/14/2000 | DE19910506A1 Production of acrolein or acrylic acid by gas-phase oxidation of propene uses two catalyst beds at different temperatures |
| 09/13/2000 | EP1035149A1 Processes for producing polyester and producing sorbic acid |
| 09/13/2000 | EP1035103A2 Process for preparing acrylic acid |
| 09/13/2000 | EP1035102A1 Process for the purification of (meth)acrylic acid and/or its ester |
| 09/13/2000 | EP1035101A2 Process and apparatus for the production of carboylic acids with one to four carbon atoms |
| 09/13/2000 | EP1035100A1 Preparation of aromatic hydroxycarboxylic acids |
| 09/13/2000 | EP1035099A1 Process for the preparation of sorbic acid or salts thereof |
| 09/13/2000 | EP1035098A1 Process for the preparation of sorbic acid |
| 09/13/2000 | EP1035097A1 Process for the preparation of sorbic acid |
| 09/13/2000 | EP1034838A2 Fluidized bed reactor |
| 09/13/2000 | CN1266380A Method for regenerating a zeolitic catalyst |
| 09/13/2000 | CN1266050A Process for purifying propenoic acid |
| 09/13/2000 | CN1266049A Process for treating waste liquid after recovering cobalt and manganese in process of producing terephthalic acid |
| 09/08/2000 | WO2000051961A1 Method for producing derivatives of biphenyl-2-carboxylic acid |
| 09/08/2000 | WO2000051960A1 Synthesis of functionalized esters |
| 09/08/2000 | WO2000051725A1 Catalyst for producing acetic acid, method for preparing the same and method for producing acetic acid using the same |
| 09/08/2000 | WO2000023412A3 Synthesis of conjugated polyunsaturated fatty acids |
| 09/08/2000 | CA2360499A1 Catalyst for production of acetic acid, process for its production and process for production of acetic acid using it |
| 09/07/2000 | DE19909340A1 Rohrbündelreaktor mit gestuftem Innendurchmesser Tube bundle reactor with stepped inner diameter |
| 09/06/2000 | EP1033360A1 Process for preparing vinylesters from butene oligomers |
| 09/06/2000 | EP1033359A2 Method for production of (methyl)acrylic acid and/or (methyl)acrylic esters |
| 09/06/2000 | EP1033167A2 Bundle tube reactor with varying internal diameter |
| 09/06/2000 | EP1032566A2 Method for the preparation of citalopram |
| 09/06/2000 | EP1032557A1 Method for preparing bromomethyl-biphenyl derivatives |
| 09/06/2000 | CN1265640A Process for purification of (meth) acrylic acid |
| 09/06/2000 | CN1265608A Phosphorus/vanadium catalyst preparation |
| 09/06/2000 | CN1056191C Trisodium citrate preparing process using anion exchange resin |
| 09/06/2000 | CN1056190C Citric acid extracting procese |
| 09/05/2000 | US6114590 Catalyzing the halogenation with potassium fluoride in the presence of a quaternary phosphonium salt or a crown ether |
| 09/05/2000 | US6114577 Desorption process and apparatus |
| 09/05/2000 | US6114576 Carbonylation process with integrated heat exchange |
| 09/05/2000 | US6114575 Process for preparing 2,6-naphthalenedicarboxylic acid |
| 09/05/2000 | US6114574 Preparation of aromatic acids |
| 09/05/2000 | US6114278 Mixed metal oxide mo-v-ga-pd-nb-x (where x=la, te, ge, zn, si, in or w) catalyst |
| 09/05/2000 | US6114274 Preparation of aliphatic carboxylic acids in the presence of heteropolyacid catalysts |
| 09/05/2000 | US6113866 Filtration, dissolving filter cake, crystallization, cooling, depressurization, separation |
| 09/05/2000 | CA2225381C Nitric acid hydrolysis of polyamides |
| 09/05/2000 | CA2205282C Heterogeneous catalyst for the production of acetic anhydride from methyl acetate |
| 09/05/2000 | CA2019301C Process for the preparation of phenylacetic derivatives of thienopyridines and of the intermediate .alpha.-bromo-phenylacetic acids |
| 08/31/2000 | WO2000050528A1 Method for isolating oleic acid and producing lineloic dimer/trimer acids via selective reactivity |
| 08/31/2000 | WO2000050374A1 Reduction of the carbonyl value of carboxylic acids and derivatives of carboxylic acids |
| 08/31/2000 | DE19908504A1 Verfahren zur Herstellung von Derivaten der Biphenyl-2-carbonsäure A process for the preparation of derivatives of biphenyl-2-carboxylic acid |
| 08/31/2000 | DE19908320A1 Verfahren zur Herstellung von Vinylestern aus Butenoligomeren A process for preparing vinyl esters from butene oligomers |
| 08/31/2000 | DE19907519A1 Verfahren zur Herstellung von substituierten Olefinen A process for the preparation of substituted olefins |
| 08/31/2000 | DE19907458A1 Preparation of fatty acids by hydrolyzing lower alkyl esters with homogeneous acid comprising an aliphatic and/or aromatic sulfonic acid |
| 08/30/2000 | EP1031561A1 Manufacture of cycloalkenylpolyene esters |
| 08/30/2000 | EP1031553A1 Process for the preparation of substituted olefins |
| 08/30/2000 | EP1030829A1 Method and apparatus for preparing purified terephthalic acid |
| 08/30/2000 | EP1030827A1 Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters |
| 08/30/2000 | EP0828702B1 Process for resolving chiral acids with 1-aminoindan-2-ols |
| 08/30/2000 | CN1265089A Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting solvent to hydrocarbon ratio |
| 08/30/2000 | CN1265088A Improed process of prepn. of linear aldehydes |
| 08/30/2000 | CN1265087A Process for prepn. of cyclopropylacetylene |
| 08/30/2000 | CN1264697A Process for preparing monochloroacetic acid |
| 08/30/2000 | CN1264619A Process for preparing supermicro particles of vanadium phosphorus oxide and its products |
| 08/30/2000 | CN1264617A Multimetal oxide material used for gas phase catalyzing and oxidizing of organic compound |
| 08/30/2000 | CN1055914C Process for prepn. of carboxylic acids or corresponding esters in presence of catalyst based on iridium |
| 08/29/2000 | US6111137 Purification process of lactic acid |
| 08/29/2000 | US6111136 Method for preparation of perfluoroalcanecarboxylic and perfluoroalkanesulfonic acids |
| 08/29/2000 | US6111131 Beta, gamma-dihydropolyprenyl alcohol derivatives and pharmaceutical composition containing a polyprenyl compound |
| 08/29/2000 | US6111128 In the presence of a metal catalyst, reacting an enol ester of given formula or oxime ester with a carbonyl compound and cyanogenation agent to form an alpha-cyanohydrin ester which is hydrolyzed to form alpha-hydroxy acids; efficiency |
| 08/29/2000 | US6111114 4-bromomethyldiphenyl substituted by 2'-cyano,-carboxy, carbonyloxy or carboxyamide prepared by brominating the corresponding 4-methyl compound using bromine or aqueous hydrobromine solution in the presence of hydrogen peroxide |
| 08/29/2000 | US6111082 Stable concentrated rare earth carboxylate liquids |
| 08/29/2000 | US6110976 Perfluoro (alkoxycycloalkane) carbonyl fluoride compositions and their use |
| 08/29/2000 | CA2197988C Conversion of nylon 6 and/or nylon 6,6 to adipic acid |