Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
05/1990
05/31/1990DE3840371A1 Process for the preparation of 2,4,5-trifluorobenzoic acid
05/30/1990EP0370686A2 A process for preparing quinolone carboxylic acid intermediates
05/30/1990EP0370644A2 Herbicidal compounds
05/30/1990EP0370555A2 A process for the separation of a phenol
05/30/1990EP0370083A1 Seal for rotatable shaft.
05/30/1990EP0324360B1 Process for the preparation of isobutyric acid or derivatives thereof
05/30/1990CN1042534A Oxidation process for mfg. aromatic acids from alkylaromatic compounds
05/29/1990US4929772 Process for preparing polyhalogenated carbinols
05/29/1990US4929753 Fuming sulfuric acid
05/29/1990US4929635 New derivatives of 4-vinyl benzoic acid, process for their preparation and their uses in therapeutics and as ligands
05/29/1990CA2004004A1 Preparation process for aromatic hydroxycarboxylic acid
05/29/1990CA2002893A1 Inhibition of polymerization during distillation of monomers
05/29/1990CA1269671A2 Intermediates for substituted naphthoic acid process
05/23/1990EP0369563A1 Process for the preparation of carbacyclin derivatives by stereoselective introduction of the 5,6 double bond
05/23/1990EP0226119B1 Halogen-tetrafluoropropionic acid, process for its preparation and its use
05/23/1990CN1042346A Method for production of acrylate and acrylate-contg. polymer
05/23/1990CA2003558A1 Process for the separation of a phenol
05/23/1990CA2003446A1 Process for preparing quinolone carboxylic acid intermediates
05/22/1990US4927980 Reacting chloroaromatic compound with alkali metal fluoride salts
05/22/1990US4927967 Production of carboxylic acids from organic formate esters using rhodium complex catalysts
05/22/1990US4927962 Process of preparing fluorocarbon carboxylic or sulfonic acid from its fluoride
05/22/1990US4927548 Fatty acid reacted with metal (hydr)oxide
05/22/1990CA2003481A1 Herbicidal compounds
05/22/1990CA1269391A1 Process for the preparation of diether diphthalic anhydrides
05/22/1990CA1269390A1 Process for the preparation of oxy-diphthalic anhydrides
05/22/1990CA1269371A1 Polycyclic aromatic derivatives, and their use in cosmetics
05/16/1990EP0368696A1 Process for the industrial manufacture of sodium parahydroxymandelate
05/16/1990EP0192767B1 Derivatives of diphenylhexafluoropropane
05/15/1990US4925981 Method of isolating methacrylic acid
05/15/1990US4925980 Process for producing methacrylic acid and a catalyst
05/15/1990US4925977 Catalytic oxidation of diisopropylnaphthalene
05/15/1990US4925966 Process for producing trifluorobenzene compounds
05/15/1990US4925959 Dioxane adduct of 2-hydroxynaphthalene-6-carboxylic acid and process for the preparation thereof
05/15/1990US4925957 Process for producing pyromellitic dianhydride
05/15/1990US4925925 Radioactive rhenium ligated to 2-hydroxy isobutyric acid and method of use
05/15/1990US4925874 Novel cyclopropane carboxylates
05/15/1990US4925823 Process and catalyst for the preparation of methacrylic acid
05/09/1990EP0367506A2 Terpinene diadducts
05/09/1990EP0367399A2 Process for producing trimellitic acid
05/09/1990EP0367256A2 Process for the preparation of hexafluoropropene oxide oligomers
05/09/1990EP0367050A1 Process for the preparation of carboxylic-acid chlorides
05/09/1990EP0247159B1 Process for the co-production of aromatic carboxylates and alkyl iodides
05/08/1990US4924027 Separation of salts of citric acid from fermentation broth with a weakly basic anionic exchange resin adsorbent
05/08/1990US4924016 Condensed acetoacetic acid ester titanium chelates and process for their preparation
05/08/1990CA2002139A1 Process for industrial manufacture of sodium parahydroxymandelate
05/03/1990WO1990004581A1 Method for preparing (+)-isocitric acid and its derivatives
05/02/1990EP0366390A2 Ruthenium-phosphine complexes
05/02/1990EP0366149A1 Improved process for the synthesis of 3-chloro-2,4,5-trifluorobenzoic acid
05/02/1990EP0366084A1 Process for the treatment of quaternary onium salts and its application to the preparation of hexafluoropropylene oxide
05/02/1990EP0236348B1 Carbonylation process for the production of aromatic acids
05/02/1990EP0173714B1 Preparation of optically active 1,3-dioxolane-4-methanol compounds
05/01/1990US4922052 (Vinylphenyl)phenylmethane and method for producing (benzoylphenyl) propionic acid
05/01/1990US4922015 Synthesis of peptide amides by means of a solid phase method using acid-labile anchoring groups
05/01/1990US4922014 Process for the preparation of oxethylmercaptobenzaldehydes and their oxidation products
05/01/1990US4922010 Processes for preparing 2-substituted propionic acid and derivatives thereof
05/01/1990US4922009 Stereoconvergent process for preparing optically active carboxylic acids
05/01/1990US4921986 Method and apparatus for producing cobalt acetate from cobalt chip
05/01/1990US4921977 Obtaining maleic anhydride not prone to discolor
05/01/1990CA1268478A1 Process for the preparation of 2-perfluoropropoxy- perfluoropropinol fluoride
05/01/1990CA1268477A1 Process for preparing purified, virtually odourless solid benzoic acid
05/01/1990CA1268475A1 Optically active herbicides
04/1990
04/28/1990CA2001397A1 Method for production of acrylate and acrylate-containing polymer
04/26/1990DE3836271A1 Verfahren zur herstellung von (+)isocitronensaeure und deren derivaten A process for preparing (+) isocitric acid and derivatives thereof
04/25/1990EP0365383A1 Method of hydroxycarbonylation
04/25/1990EP0364697A1 Process for preparing ether-carboxylic acids and salts
04/25/1990EP0240530B1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof
04/24/1990US4920120 3-carboxy, 4-oxo, 6-fluoro, 7-nitrogen-containing ring 1,4-dihydro-1,8-naphthyridines
04/24/1990US4919803 Liquid chromatographic chiral stationary phase
04/24/1990CA1268187A1 Process for preparing carboxylic acids
04/19/1990WO1990003962A1 Process for the preparation of 7-substituted-hept-6-enoic and -heptanoic acids and derivatives and intermediates thereof
04/18/1990EP0364310A1 Method of catalytically purifying an aqueous effluent containing acetic acid
04/18/1990EP0363934A1 Process for the preparation of 7-substituted-hept-6-enoic and -heptanoic acids and derivatives thereof
04/18/1990EP0363760A1 Aromatic ethers
04/18/1990CN1041357A Removel of iodine or iodide impurities
04/17/1990US4918226 Process for converting formate esters to carboxylic acids
04/17/1990US4918225 Melting; crystallization of trans crotonic acid by cooling
04/17/1990US4918223 Method of preparing N-acylated mercapto-alpha-amino acids
04/17/1990US4918218 Preparation of acetic acid and methyl acetate
04/17/1990US4918201 Process for preparation of maleic anhydride
04/17/1990US4918176 Unsaturated cycloaliphatic derivatives
04/17/1990US4917829 Anticancer agent
04/17/1990US4917817 Optical active compound, process for producing same and liquid crystal composition containing same
04/17/1990US4917769 Distillation apparatus for removal of volatile acids from aqueous solutions
04/17/1990CA1267911A1 Process for producing 6-hydroxy-2-naphthoic acid
04/17/1990CA1267907A1 Process for the preparation of oxy-diphthalic anhydrides
04/11/1990EP0362817A1 Process for producing crystalline oxide of vanadiumphosphorus system and catalyst containing the crystalline oxide
04/11/1990EP0362816A1 Cyclopenteneheptanoic acid derivatives and method of preparation thereof
04/11/1990EP0362728A2 Process for preparing ibuprofen for direct tabletting
04/11/1990EP0362476A2 Method of resolving mixtures of enantiomenic arylpropionic acids
04/11/1990EP0362443A1 Oxidation process for the manufacture of aromatic acids from alkylaromatic compounds
04/11/1990CN1007492B Technology for recirculating use of catalyst
04/10/1990US4916257 Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid
04/10/1990US4916147 3-[(4-Aroyl) phenoxy (or phenylthio)]-cyclopentanecarboxylic acid analogues and treatment of cerebral edema therewith
04/10/1990US4916136 Lipoxygenase and cyclooxygenase inhibitors
04/10/1990US4916103 Preparation of a catalytically active composition for the gas phase oxidation of propylene to acrolein and acrylic acid
04/10/1990CA1267658A1 Method for preparing 3-ethylbenzophenone
04/10/1990CA1267656A1 Photoinitiators for photopolymerization of unsaturated systems
04/10/1990CA1267654A1 Catalysts for preparation of aromatic carboxylic anhydrides
04/05/1990WO1990003358A1 A process for the production of granular metal soaps
04/04/1990EP0361840A2 Method for making 2,6-naphthalene-dicarboxylic acid
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