Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
03/1994
03/17/1994CA2106168A1 Rapidly degradable poly(hydroxy acid) compositions
03/16/1994EP0587106A2 Lipophilic salts containing neutron activable isotopes and compositions containing them
03/16/1994EP0587072A1 Process for the preparation of alpha, beta-unsaturated beta-oxycarboxylic acid chlorides
03/16/1994CN1083803A Preparation of hexandioic acid by hydogen added carboxyltion of pentenylic acid
03/16/1994CN1024003C Method for manufacture of phthalic anhydride
03/16/1994CN1024002C Stearates of rare earth elements and the process of their prodn.
03/16/1994CN1024001C Process for preparing carboxylic acids
03/15/1994US5294740 Preparation of formic acid by thermal cleavage of quaternary ammonium formates
03/15/1994US5294739 Using a cobalt-containing molecular sieve catalyst to produce alcohols, aldehydes, ketones and carboxylic acids
03/15/1994US5294738 Process for selective hydrodefluorination
03/15/1994US5294721 Reacting a halonitrobenzene and a pyridinium salt
03/15/1994CA1327814C Anhydrous diluents for the isobutylene oxidation reaction to methacrolein and methacrolein oxidation to methacrylic acid
03/11/1994CA2105835A1 Preparation of .alpha.,.beta.-unsaturated .beta.-oxycarboxylic acid chlorides
03/09/1994EP0433420B1 Process for making symmetrical di-fatty acid diamides
03/09/1994CN1083470A Method for producing citric acit from acetylene offscum
03/08/1994US5292949 From acyl halide and acid anhydride
03/08/1994US5292948 Continuous process for the preparation of acetic anhydride or mixtures of acetic anhydride and acetic acid
03/08/1994US5292944 Process for the preparation of adipic acid or pentenoic acid
03/08/1994US5292941 Method for ozonizing unsaturated fatty acids or lower alkyl esters thereof and method for the oxidative decomposition of ozonized products
03/08/1994US5292940 Process for the preparation of alkali metal salts of ether-carboxylic acids
03/08/1994US5292939 Process for the preparation of 3,4-dihydroxybutanoic acid and salts thereof
03/08/1994US5292936 Contacting an aqueous solution of an amino alcohol with an alkali metal hydroxide in the presence of a raney copper catalyst
03/08/1994US5292934 Oxidation
03/08/1994US5292928 Process for the reaction of a low-molecular hydroxyl compound with a carboxylic acid halide
03/08/1994US5292907 Esterify butanediol, reductive elimination to give a trans-ether, conversion of ether to hydroxy and carboxy
03/08/1994US5292902 Process for the manufacture of odorants and intermediates used therein
03/08/1994CA1327607C Method for oxidizing unsaturated aromatic compounds
03/08/1994CA1327605C Water-soluble copper salts
03/08/1994CA1327601C Phenoxyalkylcarboxylic acid derivatives and process for their preparations
03/08/1994CA1327593C Enantioselective process and intermediates for preparing trans or cis hemicaronic aldehyde derivatives
03/08/1994CA1327588C Leukotriene antagonists
03/07/1994CA2097645A1 Method for the preparation of metal soap aqueous dispersions
03/03/1994WO1994004522A1 New leukotriene-b4 antagonists, process for preparing the same and their use as medicaments
03/03/1994WO1994004502A1 Pyridinium intermediates and the process for preparing the same
03/03/1994WO1994004481A1 Process for preparing 2,5-diphenylterephthalic acid
03/03/1994WO1994004480A1 Process for preparing phenylterephthalic acid
03/03/1994WO1994004479A1 Improved process for the preparation of 3-pentenoic acid from butadiene
03/03/1994WO1994004269A1 Static condition process for the preparation of phosphorus/vanadium oxidation catalyst
03/03/1994DE4327872A1 Sepn of mono:chloro:acetic acid from an acetic acid chlorination mixt - by rectification in column with ordered carbon-contg. packing
03/03/1994DE4228201A1 Neue Leukotrien-B¶4¶-Antagonisten, Verfahren zu ihrer Herstellung und ihre Verwendung als Arzneimittel B¶4¶ new leukotriene antagonists, to processes for their preparation and their use as medicaments
03/03/1994CA2142823A1 Improved process for the preparation of 3-pentenoic acid from butadiene
03/03/1994CA2142821A1 New leukotriene-b antagonists, process for preparing the same and their use as medicaments
03/03/1994CA2140027A1 Process for 2,5-diphenylterephthalic acid
03/02/1994EP0585023A1 Producing partial oxidation products
03/02/1994EP0584964A1 Process for the recovery of group VIII noble metals
03/02/1994EP0584108A1 Pharmaceutical composition comprising ibuprofen salt
03/02/1994EP0428746B1 Process for preventing discoloring of maleic anhydride
03/02/1994CN1082943A Heterogeneous Ni Catalyst for producing ethyl ether by carbonylation of methyl alcohol and producing process thereof
03/01/1994US5290962 Method for preparation of anti-calking coating with pigment therein
03/01/1994US5290955 Multistage process with resolution, lactonization, reduction and dehydration
03/01/1994US5290946 Processes for the synthesis of 3-(substituted indolyl-2-yl)propenaldehydes
03/01/1994US5290888 Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions
03/01/1994US5290404 Electrolysis and hydrolysis
03/01/1994CA2101963A1 Process for the recovery of group viii noble metals
03/01/1994CA1327360C Oxo-analogs of mevinolin-like antihypercholesterolemic agents
02/1994
02/23/1994EP0583705A1 Process for the preparation of 2,3,4-trichloro-5-fluoro-benzoylchloride
02/23/1994EP0583695A1 Process for the preparation of formic acid from carbon monoxide and water
02/23/1994EP0583589A1 Process for the preparation of aromatic o-chloromethyl carboxylic acid chlorides
02/23/1994EP0583362A1 Oxidative secondary rhodium recovery process
02/23/1994CN1082540A Carbonylation of epoxides
02/23/1994CN1082531A Elevated pressure phthalic anhydride process
02/23/1994CN1023864C Process for preparing phenylacetic acid by chlorobenzyl carbonylation under normal pressure
02/22/1994US5288904 Method for the decomposition of trichloroacetic acid
02/22/1994US5288903 Preparation of 3-pentenoic acid and a catalyst therefore
02/22/1994US5288902 Method of manufacturing ferulic acid
02/22/1994US5288880 Catalytic oxidation of butane using catalyst formed by calcining vanadyl hydrogen orthophosphate with various transition metal phosphates, monohydrogen phosphates
02/22/1994US5288879 Tetrahalophthalic anhydride process
02/22/1994US5288390 Polycyclic aromatic ring cleavage (PARC) process
02/22/1994US5288376 Preparation of perfluorooligoether iodides
02/17/1994WO1994003566A1 Hydrogenation in a plate heat exchanger
02/16/1994EP0582700A1 Method for improving the performance of vpo catalysts
02/16/1994EP0582668A1 Chiral tridentate bis(phospholane) ligands
02/16/1994CN2156188Y Double-effect citric acid concentrating device
02/16/1994CN1082025A Process for preparing diprotected 2,3-hydroxymethyl cyclobutanol
02/15/1994US5286903 Process for the preparation of cyclohexanedicarboxylic acids
02/15/1994US5286902 Hydroperoxidizing, heating to convert to alcohol, alkylating, hydroperoxidizing, epoxidizing, heating to form aldehyde, oxidizing to acid
02/15/1994US5286900 Process for preparing acetic acid, methyl acetate, acetic anhydride or mixtures thereof
02/15/1994US5286899 Process for the stereoselective transformation of a diol to an alcohol
02/15/1994US5286825 Partially fluorinated compounds and polymers
02/15/1994CA1327052C Tritium-marked compound, preparation thereof and its use namely for determining the affinity of retinoids with their nuclear receptor and their cytosol binding protein
02/15/1994CA1327049C Process for obtaining substituted fluorobenzenes
02/09/1994EP0582318A1 Use of carnosic acid for its anticarcinogenic and antiviral properties
02/08/1994CA2008178C Process for producing maleic anhydride
02/08/1994CA1326860C Method for making 2,6-naphthalene dicarboxylic acid
02/03/1994WO1994002245A1 Catalysts and their use in oxidation of satured hydrocarbons
02/03/1994WO1994002244A1 Aluminium oxide catalyst containing silver, and method of decomposing nitrous oxide
02/03/1994DE4224881A1 Silberhaltiger Aluminiumoxid-Trägerkatalysator und Verfahren zur katalytischen Zersetzung von reinem oder in Gasgemischen enthaltenem Distickstoffmonoxid Silver-alumina-supported catalyst and process for the catalytic decomposition of pure or contained in gas mixtures nitrous oxide
02/02/1994EP0581737A2 Inhibiting polymerization of vinyl aromatic monomers
02/02/1994EP0580901A1 Method for production of methacrylic acid
02/02/1994EP0580842A1 Assessment of autoignition conditions and suppression of autoignition
02/02/1994EP0580818A1 PROCESS FOR DECOMPOSING -g(a),-g(b)-UNSATURATED CARBONYL COMPOUNDS IN REFINING ACETIC ANHYDRIDE AND/OR ACETIC ACID.
02/02/1994EP0580735A1 Preparation of trialkylacetic acids, particularly of pivalic acid, using solid acid catalysis
02/02/1994EP0580619A1 Process for producing hydrophobised double-layer hydroxide compounds.
02/01/1994CA1326668C Ethers and thioethers having therapeutical activity, their preparation and pharmaceutical compositions containing them
01/1994
01/27/1994DE4224362A1 Ether-carboxylic acid salt surfactant prepn - by Williamson synthesis with organic halide treatment of prod to remove starting material and improve foaming and cleaning power
01/26/1994EP0580476A1 Process for producing 6E-leucotriene B4 and intermediates from this production process
01/26/1994EP0579716A1 Process for preparation of terephthalic acid.
01/26/1994EP0579715A1 Process for recovery of purified terephthalic acid.
01/26/1994EP0579617A1 Process for preparing 3-hydroxypropionic acid.
01/26/1994CN1081120A Equipment and technology for preparing organic acid with bipolar film electrodialysis method