Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
03/1987
03/17/1987US4650879 High purity and yield, nonpolluting
03/17/1987US4650807 Antihistaminic compositions and methods containing pyridine derivatives
03/17/1987US4650749 Heat-developable light-sensitive material
03/17/1987US4650652 Dissolving, precipitation of oxalates, baking
03/17/1987US4650649 Catalyst recovery process
03/17/1987US4650615 Purification of carboxylic acid anhydrides contaminated with halogen or halides
03/17/1987CA1219257A1 1,8-dihydroxy-9-anthrone adducts and their use in human or animal medecine and for cosmetics
03/12/1987WO1987000521A3 New carboxylic acid derivatives, their manufacturing process, use and medicines containing these compounds
03/11/1987EP0213976A1 Process for preparing carboxylic-acid chlorides by phosgenation of carboxylic acids, and catalysts for this process
03/11/1987EP0213340A1 Process for the preparation of aromatic carboxylic acids
03/11/1987EP0213313A2 Precursors and synthesis of methyl-9-oxo-11 alpha, 16-dihydroxy-16-vinyl-5-cis-13-trans prostadienoates
03/11/1987CN86107188A Dehydration for maleic acid
03/10/1987US4649217 Oxidation, cyclohexanones, water, iron or iridium compound
03/10/1987US4649216 Carbonylation process for the production of aromatic acids
03/10/1987US4649213 Dialkoxyalcohol, rearrangements, base or amide, halo-sulfur compound
03/10/1987US4649207 Rigid polymers
03/10/1987US4649205 Vanadium, phosphorus, oxygen, promoters, oxidation, butane
03/10/1987US4649139 1,2,4-triazines
03/10/1987CA1218999A1 Process for the preparation of carboxylic acids and/or esters
03/10/1987CA1218998A1 Process for the preparation of ethylidene diacetate and/or acetic acid anhydride
03/05/1987DE3530798A1 6-Phenoxymethyl-4-hydroxytetrahydropyran-2-ones, processes for their preparation, their use as medicaments, pharmaceutical preparations and intermediates
03/04/1987EP0212982A2 Recovery of rhodium from carbonylation residues using immiscible liquids
03/04/1987EP0212617A1 Process for producing 4-biphenylylacetic acid
03/04/1987EP0212529A1 Process to prevent the darkening occurring during their further treatment of the by-products obtained from the preparation of adipic acid
03/04/1987EP0212254A2 Process for the preparation of oxygenated decaline compounds
03/04/1987EP0212221A1 Process for the preparation of naphthalene-2,6-dicarboxylic acid
03/04/1987EP0212217A1 Process for the stabilization of acidic rinsing waters
03/04/1987EP0212121A2 Process for the continuous separation of maleic anhydride from gaseous reaction mixtures
03/04/1987EP0212094A1 Method for utilizing the distillation residues of phthalic acid anhydride and/or maleic acid anhydride
03/04/1987EP0212066A1 Intermediates useful in the preparation of dopamine-beta-hydroxylase inhibitors
03/04/1987CN85107544A Production of anhydrous carboxylic acids from alcohols using rhokium complex catalysts and organic ester source
03/04/1987CN85107064A Production of carboxylic anhydrides from methyl carboxylates using rhodium complex catalysts
03/03/1987US4647696 Method for making isobutyric acid
03/03/1987US4647695 Method of preparing trifluoroacetic acid from trichlorotrifluoroethane
03/03/1987US4647691 Process for preparing ethyl and n-propyl esters of carboxylic acids from methanol, syngas and carboxylic acid using a new catalyst system
03/03/1987US4647673 Maleic anhydride process
03/03/1987US4647585 Bicycloheptane substituted ethers
03/03/1987US4647401 Process for preparing colloidal ceric oxide and complexes thereof with free organic acids
03/03/1987US4647350 Electrolytic preparation of perfluoroalkanoic acids, perfluoroalkanols and perfluoroalkyl esters
02/1987
02/25/1987EP0211548A1 Antiallergic agents
02/25/1987CN86104680A Recovery of noble metal values from carbonylation residues
02/24/1987US4645838 Pyrazolopyridine compounds, and intermediates, useful as anxiolytic agents
02/24/1987US4645744 Unified test means for ion determination
02/24/1987CA1218381A1 Process for preparing arylalkylpyruvic acids
02/24/1987CA1218376A1 Compositions containing unsaturated fatty acid compounds and method of stabilizing unsaturated fatty acid compounds
02/24/1987CA1218375A1 Preparation of optically active 1,3-dioxolane-4- methanol compounds
02/19/1987DE3529381A1 Process for the preparation of 2,6-naphthalene dicarboxylic acid
02/18/1987CN86103741A Method for new salts preparation
02/17/1987US4644080 With boron tribromide and a hydroperoxide
02/17/1987US4644073 Permeability contrast correction employing a sulfate-free propionate-sequestered chromium (III) solution
02/17/1987US4644072 Intermediates for the production of epipodophyllotoxin and related compounds and processes for the preparation and use thereof
02/17/1987US4644069 Process for the preparation of dimethylmaleic anhydride
02/17/1987US4643851 Process for preparing trifluoroacetyl chloride
02/17/1987US4643811 Photochemical process for the preparation of dichlorotrifluoroethoxy- and dichlorotrifluoroethlythiobenzene derivatives
02/17/1987US4643758 Herbicidal furyl-, thienyl- and pyrrolyl-2-pyrrolidinones
02/12/1987WO1987000830A1 Process for preparing organic acids
02/12/1987WO1987000829A1 Carbonylation process for the production of aromatic acids
02/10/1987US4642377 Process for producing terephthalic acid from p-xylene and methanol by way of dimethyl terephthalate
02/10/1987US4642376 Process for the preparation of alpha-hydroxyaryl-alkanoic acids
02/10/1987US4642372 Novel process for preparation of 1-furenyl-2,2-dimethyl-cyclopropane carboxylic acid derivatives
02/10/1987US4642369 Oxidation, esterification
02/10/1987US4642314 Antiulcer compounds
02/10/1987US4642166 Dehydration of formic acid by extractive distillation
02/10/1987CA1217780A Process for the preparation of glyoxylic acid and glyoxylic acid derivatives
02/05/1987DE3624417A1 Continuous process for the preparation of fatty acids, in particular of C8-C18-fatty acids by catalytic oxidation of n-alkanes
02/04/1987EP0210929A2 Aromatic polycyclic derivatives, process for their preparation and their pharmaceutical and cosmetic use
02/04/1987EP0210772A2 3-[(4-Aroyl)phenoxy(or phenylthio)]cyclopentanecarboxylic acid analogues
02/04/1987EP0210683A1 Promotion of raney nickel catalyst
02/04/1987EP0210680A2 Tube reactor
02/04/1987EP0210589A2 Process for preparing optically active alpha-halogen ketals
02/04/1987EP0210480A2 Process for purifying hydrogen chloride gas
02/04/1987CN86103521A Deprotection of allylic esters and ethers
02/03/1987US4640931 3-(indian-5-yloxy (or thio)) cyclopentanecarboxylic acid analogues
02/03/1987US4640802 Process for the co-production of carboxylic acids and carboxylic acid esters
02/03/1987US4640750 Electrolysis of alkaline solutions of 3-methyl-1,3,5-pentanetriol using anodes coated with nickel oxide/hydroxide
02/03/1987CA1217502A1 Conversion of alkanes to unsaturated aldehydes
01/1987
01/31/1987CN85101740A Recovery of organic acids, catalysts and water from terephehalic acid manufacture
01/31/1987CN85101737A Process for preparing 2,4,5-trihalogeno-and 2,3,4,5-tertrahalogeno-benzene derviatives
01/29/1987WO1987000521A2 New carboxylic acid derivatives, their manufacturing process, use and medicines containing these compounds
01/29/1987WO1987000520A1 Method for neutralization of organophilic acidic compounds
01/29/1987WO1987000519A1 Chemical compounds comrpising substituted phenylrings
01/28/1987EP0210017A1 Recovery of noble metal values from carbonylation residues
01/28/1987EP0209905A1 1,1-(3-Ethylphenyl)phenylethylene and method for its preparation
01/28/1987EP0209770A1 Eicosatriynoic esters and amides and their use in pharmacy and cosmetics
01/28/1987EP0209733A2 Use of diamines in the preparation of salts with dicarboxylic acids
01/28/1987EP0209731A2 Salts of oxyalkylene diamines and dicarboxylic acids, their preparation and use, and polyamides prepared therefrom
01/28/1987EP0209622A1 Hydroterphenyls
01/28/1987CN86104674A Oxidation method
01/28/1987CN86103531A Ralpha-f-substituted-acrylic resin and the polymer thereof
01/27/1987US4639531 Heterocyclic amidine catalyst
01/27/1987US4639530 Process for making maleic anhydride
01/27/1987US4639450 Liver disorders
01/27/1987US4639337 Adsorption on alumina
01/27/1987US4639325 Detergent builder
01/27/1987US4639294 Crotonaldehyde and ketene, purification
01/24/1987CN85101931A Preparation of symmetry (s)-gluceraldehyde acetonide
01/21/1987EP0208948A2 A method for optical resolution of phenylacetic acid derivative
01/21/1987CN86105663A Chemical compounds
01/21/1987CN86102590A Purifying method for methacrylic acid
01/20/1987US4638100 Aromatic or inter-oxa 2-decarboxy-2-hydroxymethyl-PGFα compounds