Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
07/1981
07/14/1981US4278802 Methylthio-/p-/2-thienylcarbonyl/phenyl/propionic acid or ester, pharmaceutical intermediates
07/14/1981US4278678 Antilipemic agents
07/14/1981US4278612 2-Chloro-2-alkyl substituted peroxyesters
07/14/1981US4278610 Method of making an organic metal salt or complex
07/14/1981US4278609 Process for the selective hydrogenation of triglyceride oils with a metallic catalyst in the presence of ammonia
07/14/1981US4278604 Alkylation of anhydrides, bromophenol catalysts
07/14/1981US4278516 Method for the preparation of 2-fluoro-4-monobromomethylbiphenyl
07/14/1981US4278503 Oxidation of butane, purification
07/14/1981US4278443 Polycyclic polycarboxylic acids from oxidized coal, solvent extraction
07/14/1981CA1105060A1 Hydrocarbonylation of methanol to ethanol in the presence of added compounds
07/14/1981CA1105051A1 Process for the recovery of catalyst and solvent from the mother liquor of a process for the synthesis of terephtalic acid
07/14/1981CA1105046A1 Carbonylation of alcohols
07/14/1981CA1104971A1 Dehalogenation of halogenated compounds
07/08/1981EP0031784A2 Process for preparing ethyl carboxylates from their lower homologues
07/08/1981EP0031696A1 Process for the preparation of vanadium phosphorus catalysts, catalysts so prepared, use of these catalysts for the production of maleic anhydride and maleic anhydride so produced
07/08/1981EP0031695A1 Production of mixture of branched and linear carboxylic acid salts
07/08/1981EP0031694A1 Production of carboxylic acid salts
07/08/1981EP0031693A1 Promoted tin-antimonate catalysts and use thereof
07/08/1981EP0031606A1 Process for the co-production of carboxylic acids and carboxylic acid esters
07/08/1981EP0031519A1 Preparation of fluorinated organic compounds with elemental fluorine and fused alumina reactor
07/08/1981EP0031504A1 Process for the preparation of carboxylic acid chlorides
07/08/1981EP0031436A2 A method for the cleavage of siloxanes
07/07/1981US4277620 Recovering sodium formate and pentaerythritol
07/07/1981US4277497 And salts with amino acids
07/07/1981US4277490 Insecticidal 1-(2-naphthyl)-cyclobutane carboxylate
07/07/1981US4277453 Waste gas purification reactor and method
07/07/1981US4277404 Intermediates for tranquilizers
07/07/1981US4277375 For vapor phase oxidation of acrolein to acrylic acid
07/07/1981US4277257 Process for preventing scale deposition
07/01/1981EP0031205A2 Carbonylation of ethylene or propylene
07/01/1981EP0031200A1 Method of recovering bromine from methyl bromide
07/01/1981EP0031199A1 Substituted benzyl esters of cyclopropane carboxylic acids and their preparation, compositions containing them and methods of combating insect pests therewith, and substituted benzyl alcohols
07/01/1981EP0031108A1 Process for the preparation of 5-oxo-alkanoic acids
06/1981
06/30/1981US4276231 Process for the preparation of optionally substituted benzoyl chloride
06/30/1981US4276222 Method of producing maleic anhydride
06/30/1981US4276197 Preparation of a titanium promoted VO(PO3)2 oxidation catalyst
06/30/1981US4276196 Metal oxides on a support with sorbed silica sol; for oxidation of an alpha-olefin to the corresponding unsaturated aldehyde
06/30/1981CA1104114A1 Method for preparing a catalyst and intermediate formed thereby
06/24/1981EP0030794A1 Slurries of terephthalic acid in ethylene glycol
06/24/1981EP0030585A1 Process for the preparation of phenoxypropionic acids and their alkali salts
06/23/1981US4275234 Hydrocarbon solvent extraction
06/23/1981US4275230 Crystallization of terephthalic acid from water and steam
06/23/1981US4275225 Polyfluoroallyloxy compounds, their preparation and copolymers therefrom
06/23/1981US4275224 Bronchodialators and anti-gastric secretion agents
06/23/1981US4275217 With a chiral protonation agent
06/23/1981CA1103660A1 Carboxylic acid esters
06/17/1981EP0030528A1 Process for the introduction of alkyl, aralkyl or cycloalkyl groups onto a functional group-substituted carbon chain
06/17/1981EP0030251A1 Process for the preparation of (phenoxy or benzyl)phenoxypropionic acids and their alkali salts
06/16/1981US4273936 Rhodium-catalyzed oxidation process for producing carboxylic acids
06/16/1981US4273787 1-Alkyl,1-phenyl-butenes
06/16/1981US4273729 Carbonyl or sulfonyl fluorides
06/16/1981US4273728 Nitriles
06/16/1981US4273725 Process for preparing chlorothiolformates
06/16/1981US4273723 From the alkali metal salt and a silver compound in alcohol solvent
06/16/1981US4273719 Process for preparing 3,4,5,6-tetrahydrophthalic anhydrides or derivatives thereof
06/16/1981US4273677 Preparation of thallium promoted VO(PO3)2 oxidation catalyst
06/16/1981US4273676 Process for producing methacrylic acid and a catalyst
06/16/1981CA1103196A1 Separation process for acrylic acid from its tri-n- butyl phosphate solutions
06/10/1981EP0030110A1 Process for the production of an oxygenated hydrocarbon product containing ethanol
06/09/1981USRE30642 Salt formation, molybdenum oxide
06/09/1981US4272547 Benzoyl indane carboxamides as antiphlogistics
06/09/1981US4272454 Using chloromethylene-dimethylammonium chloride
06/09/1981US4272418 Calcium or barium salt of fatty acid
06/09/1981US4272410 Rhodium, tungsten, and alkali metal on alumina
06/09/1981US4272408 Stable molybdenum catalysts for high conversion of C3 and C4 olefins to corresponding unsaturated aldehydes and acids
06/03/1981EP0029621A1 Iodo-lactones, a process for their preparation and their use in separating cis acids from cis/trans acids
06/03/1981EP0029591A1 Process for preparing trifluoracetylchlorid
06/02/1981US4271317 Thexylborane and an n,n-disubstituted aniline, reducing and hydroborating agents
06/02/1981US4271316 Process for the continuous rearrangement of alkali metal salts of aromatic carboxylic acids
06/02/1981US4271315 Treatment of waste stream from adipic acid manufacture
06/02/1981US4271161 Indane-acetic acid aminoesters, their preparation and their use in therapy
06/02/1981US4271040 Catalyst and process for producing methacrylic acid
06/02/1981US4271039 Catalyst and dehydrogenation process
06/02/1981US4270983 Hydrogen fluoride, distillation
06/02/1981US4270948 (trifluoromethylphenoxy)phenoxyalkane thiocarboxylate
06/02/1981CA1102304A1 Process for the preparation of triterpene derivatives
05/1981
05/28/1981WO1981001406A1 Process for the preparation of trifluoroacetic acid derivatives
05/27/1981EP0029317A1 Production of maleic anhydride
05/27/1981EP0029176A1 Process for the production of carboxylic anhydrides
05/26/1981US4269848 5-Substituted indan-2-carboxylic acid and functional derivatives
05/26/1981US4269805 Reactor for the oxidation of alkyl aromatics with oxygen-containing gases in the liquid phase
05/26/1981US4269781 Dimeric carbonylation of 1,3-butadiene
05/26/1981US4269776 Compressed air for operating the jet pumps used in the purification by vacuum distillation; catalytic oxidation of o-xylene or naphthalene by air; materials handling
05/26/1981US4269705 Method for removing chromium ions from aqueous solutions of organic acids
05/26/1981US4269666 Recovery of acrylic acid by reversal of acrylic acid/water relative volatility
05/26/1981CA1101885A1 Salts of dicarboxylic acids and diamines, having an improved color number, their manufacture and their use
05/26/1981CA1101882A1 Process for producing salts of pyruvic acid
05/26/1981CA1101873A1 2,6-dialkoxybenzamides, intermediates, pharmaceutical compositions and methods for treatment of psychotic disorders
05/26/1981CA1101867A1 Phenoxy-alkanecarboxylic acid derivatives, their production, and their use
05/20/1981EP0028714A1 Process for the preparation of 3-phenoxybenzaldehydes
05/20/1981EP0028709A1 Process for the preparation of gamma-chloroaceto-acetyl chloride
05/19/1981US4268690 Process for producing terephthalic acid of high purity
05/19/1981US4268687 Method of making methyl and ethyl esters of (3-trifluoromethylphenyl)-acetic acid
05/19/1981US4268457 Process for the preparation of paraphenoxybenzoylchloride
05/19/1981US4268448 Oxidation of gutadiene with a catalyst of antimony and optionally vanadium, bismuth, tellurium, or an alkali metal with a solution of a heteropoly acid of molybdenum and tungsten
05/19/1981US4268442 Process for preparing aromatic acetic acid
05/19/1981US4268362 Removal of formaldehyde, heat treatment, distillation
05/19/1981US4268302 Method of producing acicular metal crystals
05/14/1981WO1981001285A1 Substituted carboxylic ceto-acids,process for the preparation thereof,use thereof and medicinal compositions containing them
05/13/1981EP0028457A2 Cosmetic and emulsifier composition