| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 08/17/1994 | EP0610384A1 Process for the preparation of fluorinated benzoic acids. |
| 08/17/1994 | EP0610248A1 Process for preparation of cyclohexanedicarboxylic acid. |
| 08/17/1994 | CN1090859A Polymers functionalised by kochreaction and derivatives thereof |
| 08/17/1994 | CN1090840A Hydroxycarboxylation of pentenoic acid |
| 08/17/1994 | CN1090839A Improvement of carbonylation process |
| 08/17/1994 | CN1090836A Process for producing hydrocarbon partial oxidation products |
| 08/17/1994 | CN1090792A Catalyst and method for purifying a crude terephthalic acid, isophthalic acid or naphthalene dicarboxylic acid |
| 08/17/1994 | CN1025674C Substituted biphenyls |
| 08/16/1994 | US5338881 Process for preparing diketones |
| 08/16/1994 | US5338810 Step-wise neutralization of acrylic acid with base in aqueous solution by controlling acid supply, deaeration, then adding initiator to polymerize |
| 08/11/1994 | DE4313121C1 Process for separation and purification of substances by melt crystallisation |
| 08/10/1994 | EP0609750A1 Multimetal oxide masses |
| 08/10/1994 | EP0609400A1 Process for the production of basic magnesium aluminium carboxylates |
| 08/10/1994 | EP0609260A1 Improved overbased carboxylates. |
| 08/10/1994 | EP0609200A1 Direct fluorination process for making perfluorinated organic substances |
| 08/10/1994 | CN1090569A Improved method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkyleneglycol from polyethylene terephthalates |
| 08/10/1994 | CN1025609C Purification of 2-(4-Isobutylphenyl)-propionic acid |
| 08/09/1994 | US5336810 Hydrogenation of benzoic acid and catalyst suitable therefor |
| 08/09/1994 | US5336806 Purification of 2,4,5-trifluorobenzoic acid |
| 08/09/1994 | US5336801 Reacting a cyanide salt, water and tetrafluoroethylene in the presence of an acyclic alcohol |
| 08/09/1994 | US5336793 Preparing carboxylic acids or esters by oxidative cleavage of unsaturated fatty acids or esters |
| 08/04/1994 | WO1994017026A1 PROCESS FOR PREPARING α-BRANCHED ALIPHATIC MONOCARBOXYLIC ACIDS |
| 08/04/1994 | WO1994017025A1 Acetic acid recovery |
| 08/04/1994 | WO1994017021A1 Method for the catalyzed autoxidation of (cyclo)alkanes, (cyclo)alkyl aromatics and alcohols derived therefrom |
| 08/04/1994 | WO1994016798A1 Catalytic decomposition process of nitrous oxide pure or contained in gaseous mixtures |
| 08/04/1994 | CA2114681A1 Multimetal oxide compositions |
| 08/03/1994 | EP0609122A1 Tin containing composition, catalysts based on these compositions and the use thereof for the preparation of insatarated carboxylic acids |
| 08/03/1994 | EP0608975A1 Releasably bound hydroxycarboxylic acids |
| 08/03/1994 | EP0608917A1 Process for producing methacrolein and methacrylic acid |
| 08/03/1994 | EP0608838A2 Method for producing an unsaturated carboxylic acid |
| 08/03/1994 | EP0608837A1 Process for producing a vanadium-phosphorus oxide catalyst precursor |
| 08/03/1994 | EP0608714A1 Process for preparing chlorinated 4,5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehyde |
| 08/03/1994 | EP0608713A1 2,3-Difluoro-6-introbenzonitrile and 2-chloro-5,6-difluorobenzonitrile, process for their preparation and their use in the preparation of 2,3,6-trifluorobenzoic acid |
| 08/03/1994 | CN1090264A Process for the production of an alkali-metal citrate |
| 08/03/1994 | CN1090224A Catalyst for preparing cis-anhydride by n-butane oxidation |
| 08/03/1994 | CN1025561C Process for producing acrylic ester |
| 08/02/1994 | US5334759 Preparation of formic acid from carbon monoxide and water |
| 08/02/1994 | US5334758 Process for preparing optically active carboxylic acid |
| 08/02/1994 | US5334756 Carboxylate of certain polyoxyalkylene amines |
| 08/02/1994 | US5334755 Process for the production of acetic acid from methanol and carbon monoxide using supported rhodium catalyst |
| 08/02/1994 | US5334754 Di-alkylation a dimethylbenzene/p-/ compound with cyclohexene in presence of an acid catalyst, dehydrogenating the cyclohexyl group to phenyl group with dehydrogenation catalyst , then oxidizing in presence of air or oxygen |
| 08/02/1994 | CA1331173C Process for the carbonylation of acetylenically unsaturated compounds |
| 08/02/1994 | CA1331114C Alkali resistant hyperfiltration membrane |
| 07/30/1994 | CA2114598A1 Compositions made of tin-based materials, catalysts based on them and use of said catalysts in the preparation of unsaturated carboxylic acids |
| 07/30/1994 | CA2114504A1 Process for the preparation of chlorinated 4, 5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehydes |
| 07/27/1994 | EP0607826A1 Fluoro-Trifluoromethylbenzoic acid derivatives |
| 07/27/1994 | EP0607824A2 Method for the production of multiply halogenated benzotrifluorides, benzotrichlorides and benzoyl chlorides as well as trihalobenzotrichlorides and -benzoyl chlorides |
| 07/27/1994 | CN1089936A Process for producing highly pure terephthalic acid |
| 07/27/1994 | CN1089934A Process for isomerization of 2-pentenoic acid to 3-pentenoic and 4-pentenoic acids by acidic, basic or amphoteric catalysis |
| 07/27/1994 | CN1089933A Process for isomerization of lactones to pentenoic acids by acidic or basic catalysis |
| 07/26/1994 | US5332851 Processes for producing 5-fluorobenzoic acids and their intermediates |
| 07/26/1994 | US5332834 Nonsteroid antiinflammatory agents |
| 07/26/1994 | CA1330984C Supported catalyst for the preparation of monocarboxylic anhydrides |
| 07/26/1994 | CA1330982C Supported catalyst for the preparation of monocarboxylic anhydrides |
| 07/24/1994 | CA2113973A1 2,3-difluoro-6-nitrobenzonitrile and 2-chloro-5, 6-difluorobenzonitrile(2,3-difluoro-6-chlorobenzonitrile), process for their preparation and their use for the preparation of 2,3,6-trifluorobenzoic acid |
| 07/20/1994 | EP0606614A1 Nonatetraenoic acid derivative |
| 07/20/1994 | EP0505473B1 Ester hydrolysis and depolymerization of polyester and polycarbonate polymers |
| 07/20/1994 | EP0476009B1 Extraction process for removal of impurities from terephthalic acid filtrate |
| 07/20/1994 | CN1089523A Process for the recovery of group VIII noble metals |
| 07/20/1994 | CN1025495C Prepn. of 2,2,3,3-teramethyl cyclopropane carboxylic ester |
| 07/20/1994 | CN1025494C Prepn. of 2,2,3,3-tetramethyl cyclopropane carboxylic acid |
| 07/20/1994 | CN1025493C Separating unsaponifiables for naphthenic acid |
| 07/19/1994 | US5330955 Tungsten and phosphorus oxides; esterification and carboxylation of alcohols and ethers |
| 07/19/1994 | US5330954 Preparation of methacrylic acid, vanadium, molybdenum, phsophorus, oxygen catalyst |
| 07/13/1994 | EP0606072A1 Selective catalytic hydrogenation of aromatic aldehydes |
| 07/13/1994 | EP0605554A1 Oxidising compositions |
| 07/13/1994 | EP0422235B1 PRODUCTION OF alpha-(3-BENZOYLPHENYL)PROPIONIC ACID DERIVATIVE |
| 07/12/1994 | US5329043 Method of preparing methacrolein and/or methacrylic acid |
| 07/12/1994 | US5329022 Process for the synthesis of citraconimides |
| 07/12/1994 | US5329015 Chiral phospholanes via chiral 1,4-diol cyclic sulfates |
| 07/12/1994 | US5328982 Depolymerization of substantially amorphous polyesters |
| 07/07/1994 | WO1994014746A1 Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation of eddha |
| 07/07/1994 | WO1994014745A1 Preparation of polyoxyalkylene-alpha,omega-dicarboxylic acids |
| 07/07/1994 | WO1994014744A1 Process for preparing aryl-substituted aliphatic carboxylic acids and their alkyl esters |
| 07/07/1994 | WO1994014743A1 Hydrolysis of methyl esters for production of fatty acids |
| 07/07/1994 | WO1994014742A1 Tri-substituted phenyl derivatives as phosphodiesterase inhibitors |
| 07/07/1994 | CA2146779A1 Process for preparing aryl-substituted aliphatic carboxylic acids and their alkyl esters |
| 07/07/1994 | CA2110336A1 Nonatetraenoic acid derivative |
| 07/06/1994 | EP0544740B1 Process for transforming (benzoyl-3 phenyl)-2 propionic acid into an s(+) isomer |
| 07/06/1994 | CN1088956A Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes |
| 07/06/1994 | CN1088851A Process for the carbonylation of acetylenically unsaturated compounds |
| 07/06/1994 | CN1025328C Process for preparing intermediates of cis-(1S)(4S)-N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthylamine |
| 07/06/1994 | CN1025327C Process for preparing aromatic hydroxy-carboxylic acid |
| 07/05/1994 | US5326888 Carbonylation of allylic alcohols and synthesis of an ambergris fragance compound |
| 07/05/1994 | US5326886 Maintaining VPO catalyst performance by aluminizing reactor internals in oxidation of butane to maleic anhydride |
| 07/05/1994 | US5326739 Process for producing 3,5-di(α-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer |
| 06/29/1994 | EP0603825A1 Process for preparing 1,4-cyclohexandicarboxilic acid |
| 06/29/1994 | EP0603548A1 Acetate of sodium and alkaline earth metal, process of preparation and use |
| 06/29/1994 | EP0603544A1 Acetate of potassium and alkaline earth metal, process of preparation and use |
| 06/29/1994 | EP0603172A1 Catalyzed process for oxidation of ozonides of unsaturates to carboxylic acids. |
| 06/29/1994 | CN1025185C Phenoxyalryl carboxylic acid derivatives and process for their preparations |
| 06/29/1994 | CN1025184C Process for preparing acetic acid and acetic anhydride |
| 06/28/1994 | US5324856 Hydrocarboxylating an enol acylate with carbon monoxide and water or an organic hydroxyl compound producing a mixture of diastereomeric alpha-oxy acids or esters; separation; hydrolysis |
| 06/28/1994 | US5324847 Chemical intermediates for lubricant or cosmetics |
| 06/23/1994 | WO1994013709A2 Polymers functionalised by koch reaction and derivatives thereof |
| 06/23/1994 | WO1994013709A1 Polymers functionalised by koch reaction and derivatives thereof |
| 06/23/1994 | WO1994013616A1 Process for the hydrolysis treatment of a material comprising a polymer |
| 06/23/1994 | WO1994013401A1 Catalysts for the production of maleic anhydride containing vanadium-phosphorus oxide with selected promoter elements |
| 06/23/1994 | WO1994010106A3 Acid catalyst and use thereof in alkylation of olefins with tertiary alkanes |
| 06/22/1994 | EP0602549A1 4-Hydroxy-2,3,5-trifluorobenzoic acid and a process for its preparation |