| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
|---|
| 06/12/1991 | EP0431294A2 Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic anhydride |
| 06/12/1991 | EP0431248A1 Process for preparation of alpha-aryloxy acetic acids and their salts |
| 06/12/1991 | CN1052140A Continuous process for preparing matallic soaps |
| 06/12/1991 | CA2026937A1 Oxidation of polyoxypropylene glycols |
| 06/11/1991 | US5023372 Manganese salt of carboxylic acid and a phenylenediamine |
| 06/11/1991 | US5023364 Phenoxyalkylcarboxylic acid derivatives and process for their preparation |
| 06/11/1991 | US5023363 Antiinflammatory agent, antiallergens, skin disorders, vision defects |
| 06/11/1991 | US5023351 α-(ω-cyanoalkanoyl-γ-butyrolactone and method for producing the same |
| 06/08/1991 | CA2019230A1 Process for preparation of .alpha.-alkoxy acetic acids and their salts |
| 06/08/1991 | CA2019229A1 Process for preparation of .alpha.-aryloxy acetic acids and their salts |
| 06/07/1991 | CA2031280A1 Process for the preparation of mixed 2,2'-oxydisuccinate/carboxymethyloxysuccinate |
| 06/07/1991 | CA2030985A1 Process for the preparation of 2,2'-oxydisuccinate |
| 06/05/1991 | WO1991008050A1 Oxidative secondary rhodium recovery process |
| 06/05/1991 | EP0430543A1 Removal of metal soaps from hydrogenated fatty products |
| 06/05/1991 | EP0430434A2 Process for the preparation of fluoroaromatic and fluoroheteroaromatic compounds |
| 06/05/1991 | EP0429848A2 Preparation of 3,4-difluorobenzoic acid by the decarboxylation of 4,5-difluorophthalic anhydride or 4,5-difluorophthalic acid |
| 06/05/1991 | EP0429775A2 Carboxylic acid anhydride complexes and their preparation and use |
| 06/05/1991 | EP0429692A1 Continuous process for preparing metallic soaps |
| 06/04/1991 | US5021605 Trifluorobenzene compounds |
| 06/04/1991 | US5021598 Process for making bismuth carboxylates |
| 06/04/1991 | US5021593 Ruthenium-optically active phosphine complex |
| 06/04/1991 | US5021588 Using oxygen containing gas in stoichiometric excess in recirculating solids reactor with vanadium/phosphorous oxide catalyst, removing effluent, separating reduced catalyst for regeneration and recycling |
| 06/04/1991 | US5021460 P-alkyl phenoxy alkanols for the treatment of allergic conditions |
| 06/04/1991 | US5021384 Process for producing crystalline oxide of vanadium-phosphorus system and catalyst containing the crystalline oxide |
| 06/04/1991 | US5021220 Kit for preparing radiodiagnostic examination compositions |
| 06/04/1991 | US5021169 Heating and reacting maleic anhydride and an aliphatic olefin in the presence of a triarylphosphite; reduced levels of tar and color bodies |
| 06/04/1991 | US5021168 Process for the preparation and recovery of oxydiphthalic anhydrides |
| 06/04/1991 | CA1284659C Catalytic carbonylation process for alkanes |
| 06/04/1991 | CA1284658C Process for the carbonylation of ethylenically unsaturated compounds |
| 06/04/1991 | CA1284654C ¬4.2.0|bicyclooctane derivatives with valuable therapeutic properties |
| 05/30/1991 | WO1991007372A1 Process for the recovery of catalyst values |
| 05/29/1991 | EP0429040A2 Process for the preparation of 4-bromophthalic anhydride |
| 05/29/1991 | EP0428979A2 Carbonylation of allylic butenols and butenol esters |
| 05/29/1991 | EP0428746A1 Process for preventing discoloring of maleic anhydride. |
| 05/28/1991 | US5019670 Alkylation of aromatic compound with olefin hydrocarbon oligomer, porous crystalline acidic alkylation catalyst |
| 05/28/1991 | US5019652 Catalysts and method |
| 05/28/1991 | US5019545 Process for manufacture of maleic anhydride catalysts |
| 05/28/1991 | US5019297 Catalysis with hydrogenated palladium |
| 05/28/1991 | CA1284496C Process for the oxidation of di-, tri-, oligo- and polysaccharides into polyhydroxycarboxylic acids, catalyst used and products thus obtained |
| 05/22/1991 | EP0428429A2 Process for a continuous industrial preparation of an aqueous solution of glyoxylic acid |
| 05/22/1991 | EP0428423A2 Aryloxy alkyl benzenes, processes for their preparation and pharmaceutical compositions containing them |
| 05/21/1991 | CA2028736A1 Selective removal of chlorine from chlorophthalic compounds |
| 05/21/1991 | CA2025904A1 Process for the preparation of 4-bromophthalic anhydride |
| 05/21/1991 | CA1284336C Amido substituted naphthalenes and intermediates thereof |
| 05/20/1991 | CA2016658A1 Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic anhydride |
| 05/20/1991 | CA2016657A1 Preparation of 3,4-difluorobenzoic acid by the decarboxylation of 4,5-difluorophthalic anhydride or 4,5- difluorophthalic acid |
| 05/15/1991 | EP0427508A1 method for production of acrylic acid |
| 05/15/1991 | EP0259468B1 Cyclodextrinclathrates of carbacycline derivatives and their use as medicinal drugs |
| 05/14/1991 | US5015764 Separation of racemic mixtures by forming a salt solution with an organic base followed by treatment with a chiral organic nitrogenous base and precipitation |
| 05/14/1991 | US5015760 Process for the preparation of glyoxylic acid and glyoxylic acid derivatives |
| 05/14/1991 | US5015756 Ammoxidation of alkenes to form unsaturated nitriles |
| 05/14/1991 | CA2029746A1 Process for the carbonylation of allylic butenols, and butenol esters |
| 05/08/1991 | EP0425887A2 Process for halogen-fluor exchange in organic compounds and catalysts therefor |
| 05/08/1991 | EP0425666A1 Process for producing methacrylic acid and methacrolein |
| 05/08/1991 | EP0295278B1 A process for overbasing via metal borate formation |
| 05/08/1991 | CN1051168A Method for making carboxylic acid or sodium carboxylate |
| 05/07/1991 | US5013864 From alcohol and haloacetic acid salt |
| 05/07/1991 | US5013827 Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers |
| 05/07/1991 | US5013758 Hypotensive, anticoagulant, bronchodilator |
| 05/07/1991 | CA2029277A1 Method for production of acrylic acid |
| 05/07/1991 | CA1283926C Process for making 1,3-dioxane derivatives |
| 05/02/1991 | EP0424900A2 Process for preparing catalysts for producing methacrylic acid |
| 05/02/1991 | EP0424804A2 Process for preparing granulated sodium acetate trihydrate |
| 05/01/1991 | CN1012496B Method for production of oxydicarboxylic acid salts |
| 04/30/1991 | US5011987 Process for manufacturing high-purity o-toluic acid |
| 04/30/1991 | US5011984 Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid |
| 04/30/1991 | US5011948 Cleavage of isoxazole rings, reduction to amine, cyclization, lactonization; anticarcinogenic agents |
| 04/30/1991 | US5011945 Catalytic oxidation of n-butane with oxygen; vanadium-phosphorous, oxygen catalyst modified with molybdenum |
| 04/30/1991 | US5011855 Oil extracted from pips of Ribes genus fruits |
| 04/30/1991 | US5011579 Neutral oil recovery process for the production of naphthenic acids |
| 04/28/1991 | WO1991006538A1 Substituted benzoylbenzene-, biphenyl- and 2-oxazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase |
| 04/28/1991 | WO1991006537A2 Substituted indole-, indene-, pyranoindole- and tetrahydrocarbazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase |
| 04/28/1991 | CA2070422A1 Substituted indole-, indene-, pyranoindole and tetrahydrocarbazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase |
| 04/28/1991 | CA2067138A1 Substituted benzoylbenzene-, biphenyl-and 2-oxazole-alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase |
| 04/24/1991 | EP0424242A2 Process for preparing carboxylic acids by means of oxidation of corresponding aldehydes |
| 04/24/1991 | EP0423467A2 Method for optical resolution of (+/-)-2-(3-benzoyl)-phenylpropionic acid |
| 04/24/1991 | CN1050869A Alpha,beta-undersaturated acid synthetic method |
| 04/24/1991 | CN1012433B Improvements in or relating to leukotriene antagonists |
| 04/24/1991 | CN1012432B Recovery of waste liquor containing sulphuric acid in oxalic acid production |
| 04/23/1991 | US5010207 Process for the production of trimellitic anhydride with superior color properties |
| 04/23/1991 | US5010189 Processes for the preparation of 5-amino-4-hydroxy-valeric acid derivatives |
| 04/23/1991 | CA1283423C Process for the preparation of alkylidene diesters |
| 04/18/1991 | WO1991004959A1 Process for preparing polymeric dispersants having alternating polyalkylene aud succinic groups |
| 04/17/1991 | EP0422520A2 Process for preparing dichloro- or trichloro acetyl chloride |
| 04/17/1991 | EP0422235A1 PRODUCTION OF alpha-(3-BENZOYLPHENYL)PROPIONIC ACID DERIVATIVE |
| 04/17/1991 | EP0422162A1 Process for preparing sodium phenylpyruvate from calcium phenylpyruvate |
| 04/17/1991 | CA2027609A1 Carboxylic acid production process by oxidation of corresponding aldehydes |
| 04/16/1991 | US5008451 Producing carboxylic anhydrides by reacting a carboxylic ester with carbon monoxide using a phodium catalyst, iodide promoter, proton donor and anhydrous conditions |
| 04/16/1991 | US5008450 Process for exchanging dispersing medium of terephthalic acid slurry |
| 04/16/1991 | US5008449 Method of synthesis of hydroxy-substituted-4-alkoxyphenylacetic acids |
| 04/16/1991 | US5008442 Surface-active compounds on the basis of arylated fatty substances and their use |
| 04/10/1991 | EP0421853A1 Method of carbonylation of acrylic acid |
| 04/10/1991 | EP0421218A2 Process for the preparation of trifluoromethyl groups containing carboxylic acid halide |
| 04/10/1991 | EP0421046A1 Process for producing highly pure 3,3',4,4' - biphenyltetra- carboxylic acid or dianhydride thereof |
| 04/09/1991 | US5006539 Thromborane inhibitor |
| 04/09/1991 | US5006205 Dehydration of formic acid by extractive distillation |
| 04/03/1991 | EP0420706A2 Process for preparing phenylacetic derivatives of thienopyridines and intermediates alpha-bromo-phenylacetic acids |
| 04/03/1991 | EP0420048A1 Process for the obtention of methacrolein and methacrylic acid |
| 04/03/1991 | EP0420034A1 Process for making oil soluble mixtures of iron- and magnesium salts of saturated aliphatic monocarboxylic acids, and their use |
| 04/03/1991 | EP0419905A2 Quinone derivatives and pharmacological use |