Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
11/1986
11/20/1986EP0201719A1 Process for preparing polycarboxylic acid
11/20/1986EP0201608A1 Process for preparing bicyclo ad3.3.0 bdoctenes
11/20/1986EP0201607A1 Process for producing aromatic hydroxycarboxylic acid
11/18/1986US4623736 Intermediates for analgesics
11/18/1986US4623726 Method for oxidizing alkyl groups on pyridine, quinoline and benzene ring compounds to carboxylic acids under basic conditions
11/18/1986US4623660 Antiestrogens
11/18/1986US4623491 Process for the preparation of halogenated aliphatic carboxylic acid fluorides
11/18/1986US4623432 Cobalt, manganese and bromide ions; fractional distillation
11/18/1986CA1214184A1 Sorbic acid process with crystallization
11/12/1986EP0201196A2 Benzoquinone derivatives, their production and use
11/12/1986EP0200840A1 Process for the preparation of 6-(low)alkoxy-1-naphthoic acids, possibly halogenated at position 5, and the corresponding esters
11/11/1986US4622424 Oxidation
11/11/1986US4622423 Hydrocarboxylation of butadiene to 3-pentenoic acid
11/11/1986US4622421 Analgesics, antiinflammatory agents, immunoregulatory
11/11/1986US4622419 Process for the optical resolution of racemic mixtures of α-naphthyl-propionic acids
11/11/1986US4622415 Optically active phenoxypropionic acid derivatives
11/11/1986US4622339 Anticoagulants, antiischemic, antiatherosclerotics
11/11/1986US4622066 Fluorine-containing benzophenone derivatives
11/05/1986EP0200106A2 Process for the recuperation of aqueous solutions of organic acids or bases from aqueous solutions of their salts
11/05/1986EP0200023A1 Process for the purification and recycling of the polluted catalyst solution having been used for the carbonylation of methyl acetate and/or dimethyl ether
11/05/1986EP0199985A2 Benzoic-acid derivatives, pharmaceutical preparations comprising them and process for preparing these compounds and pharmaceutical preparations
11/05/1986EP0199972A1 3-Hydroxy-dicarboxylic acids and process for their preparation
11/05/1986EP0195013A4 Preparation and use of co-formed catalyst.
11/04/1986US4621160 Process for the chlorination of aromatic derivatives
11/04/1986US4621155 Molybdovanadophosphoric acid catalyst
11/04/1986US4621154 Biphenyl, succinic anhydride, chlorobenzene
11/04/1986US4621072 Process for preparing abrasion-resistant coated catalysts
11/04/1986US4620938 Hydroterphenyls
11/04/1986CA1213609A1 Method of preparation and use of organic antimony cracking catalysts poison
11/04/1986CA1213601A1 Compound useful in detecting ions and method of preparing it
10/1986
10/29/1986EP0199660A1 Process for the preparation of aromatic 1,1-difluoroperhaloalkoxy or 1,1-difluoroperhalothioalkyl derivatives
10/29/1986EP0199646A2 Process for preparing 6-alkoxy-5-trifluoromethyl-1-naphtoic acids and novel 1-cyano-naphtalene intermediates
10/29/1986EP0199636A1 Benzonaphthalenic derivatives, process for their preparation and their use in pharmacy and cosmetics
10/29/1986CN86101411A Removal of iodide compounds from non-aqueous organic media
10/28/1986US4620035 Production of acrylic acid by oxidation of acrolein
10/28/1986US4620034 Catalytic oxidation of aldose or aldonic acid using platinum catalyst with lead or bismuth compound
10/28/1986US4620033 Process for producing carboxylic acids
10/28/1986US4620032 Depolymerization of condensation polymers involving a pre-molecular weight reduction step
10/28/1986US4620031 Process for preparing alpha-aryl-alkanoic acids
10/28/1986US4619908 Hydrolyzing metal compound and extracting solvent
10/28/1986US4619791 With catalyst system containing nickel compound, methyl iodide, alkali metal iodide and crown ether
10/28/1986US4619790 Manufacture of higher alkylcarboxylic acids
10/23/1986WO1986006064A1 Naphthalenic derivatives with retinoid activity, preparation process thereof and medicinal and cosmetic compositions containing them
10/22/1986EP0198521A2 Preparation of carboxylic di-esters or acids
10/22/1986EP0198374A2 Coupling agent system of aluminium
10/22/1986EP0198348A2 Process for preparing (+)S-2-hydroxy-2-methyl-hexanoic acid
10/21/1986US4618724 Perfluorocarbon polymer oxidation catalyst and preparation of carbonyl compound
10/21/1986US4618709 Waste water treatment in the production of methacrylic acid
10/21/1986US4618701 Process for preparing 6-acetoxy-2-naphthoic-acid and pure 6-hydroxy-2-naphthoic acid
10/21/1986US4618698 Benzoldehyde, acetic acid esters, alcoholates; hydrolyze to acid
10/21/1986US4618697 Process for preparing alpha-arylalkanoic acids
10/21/1986US4618460 Catalytic carbonylation of methyl acetate
10/21/1986CA1212960A1 Process for the production of 2-chloroacetoacetic acid amides
10/15/1986EP0197868A1 Process for the preparation of dichlorotrifluoroethoxy and ethylthioaromatic derivatives
10/15/1986EP0197788A2 Purification of acid halides
10/15/1986EP0197428A1 A method for producing cyclopropanecarboxylic acid derivatives
10/15/1986EP0197237A2 Process for preparing aromatic polycarboxylic acids and their anhydrides from polycarboximides
10/14/1986US4617405 Preparation of alpha, beta-unsaturated carbonyl compounds
10/14/1986US4617153 Perfluorocarbon polymer containing difluoromethylene chromium sulfonyl pendant groups
10/14/1986US4617146 Substituted bicyclo[4.3.0]non-1(6)-en-8-yl methyl ketones and fragrance and flavor compositions
10/14/1986CA1212694A1 Dialkyl glyoxylate surfactants
10/14/1986CA1212693A1 Crystallization of ibuprofen
10/14/1986CA1212689A1 Alcohol carbonylation process using a nickel catalyst
10/09/1986WO1986005778A1 Photo-initiators for photo-polymerization of unsaturated systems
10/09/1986WO1986005777A1 Photo-initiator for the photo-polymerization of unsaturated systems
10/08/1986EP0196732A1 Process for upgrading synthesis gas and catalysts therefor
10/08/1986EP0196617A1 [4.2.0]bicyclooctane derivatives, process for their preparation and pharmaceutical compositions containing same
10/08/1986EP0196601A2 Process for producing maleic anhydride
10/08/1986EP0196520A1 Process for the continuous preparation of carboxylic anhydrides
10/08/1986EP0196461A2 Cyclopentane derivatives
10/08/1986EP0196380A2 Prostaglandin analogues, processes for their preparation and pharmaceutical compositions containing them
10/08/1986CN85102942A Coupling agents of aluminium series
10/07/1986US4615876 Imaging by scintillation scanning
10/07/1986US4615838 Chemical intermediates; vitamin e
10/07/1986US4615806 Removal of iodide compounds from non-aqueous organic media
10/07/1986CA1212383A1 Process for carbonylating methanol to acetic acid and/or methyl acetate
10/01/1986EP0196173A1 Removal of iodide compounds from non-aqueous organic media
10/01/1986CN86100473A Permeability contrast correction employing propionate-sequestered chromium prepared by nitrite/dichromate redox
10/01/1986CN85109229A Improvements in or relating to dobutamine salts
09/1986
09/30/1986US4614827 Spray drying
09/30/1986US4614822 Catalytic oxidation of 3,3-dimethyl-2-hydroxybutyric acid to 2-oxo acid and preparation of 4-amino-6-tert.-butyl-3-thio-1,2,4-triazine-5(4-H)-one
09/30/1986US4614816 Catalytic alkylation with an olefin
09/30/1986US4614808 Conducting air through reaction mixture
09/30/1986CA1212123A1 Process for preparing aryloxyalkylpyruvic acids
09/24/1986EP0195744A2 Process for the preparation of trifluorodichloroethyl-substituted acids and zinc compounds
09/24/1986EP0195530A2 Process for the preparation of phenyl pyruvic acid
09/24/1986EP0195379A2 Allenic prostacyclins
09/24/1986EP0195013A1 Preparation and use of co-formed catalyst.
09/24/1986CN85101426A Process for optically active di-(3-chloro-2-oxypropyl trimethyl ammoniuml tartrate
09/23/1986US4613694 Preparation of unsaturated or saturated α, ω-dialdehydes and α, ω-diacids
09/23/1986US4613693 Process for the co-production of a C2 to C10 monocarboxylic acid and formic acid
09/23/1986US4613692 Aromatic aldehyde and acetic anhydride, alkali condensing agents
09/23/1986US4613690 Racemization of optically active compounds having a bromine substituted chiral carbon atom
09/23/1986US4613689 Racemization of optically active compounds having a chlorine substituted chiral carbon atom
09/23/1986US4613680 Isomerization
09/23/1986CA1211736A1 Recovery of formic acid by distillation
09/17/1986EP0194867A1 Process for purifying methacrylic acid
09/17/1986EP0194707A2 Process for the hydrocarboxylation of acetylenically unsaturated compounds
09/17/1986EP0194693A1 Polyprenyl compounds, processes for preparing them, and pharmaceutical composition containing them
09/17/1986EP0194692A2 Process for separating surfactants from liquid used in the manufacture of concentrated fluoropolymer dispersions