Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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06/22/1994 | CN1025117C Synthetic technology for p-phthalyl chloride |
06/21/1994 | US5322960 Using synergistic mixture of N-oxyl compound, phenol compound, phenothiazine |
06/21/1994 | US5322959 Producing ibuprofen esters |
06/21/1994 | US5322922 Copolyamide or copolyimide-amide containing sulfo groups |
06/18/1994 | CA2111597A1 4-hydroxy-2,3,5-trifluorobenzoic acid and a process for its preparation |
06/18/1994 | CA2110422A1 Alkaline earth metal sodium acetate, a process for its preparation and its use |
06/18/1994 | CA2110317A1 Alkaline earth metal potassium acetate, a process for its preparation and its use |
06/15/1994 | EP0601662A1 Catalyst for carbonylating naphthalene mono- and disulfonates and process using said catalyst |
06/15/1994 | EP0601458A2 Separation process |
06/15/1994 | EP0601414A1 Process for the preparation of acylated aromatics |
06/15/1994 | EP0601177A1 Method for preparing aromatic carboxylic acids. |
06/15/1994 | CN1087896A Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives |
06/14/1994 | US5321158 Oxidation of olefins and vicinal diols by hydrogen peroxide using rhenium catalyst |
06/14/1994 | US5321157 Process for the preparation of adipic acid and other aliphatic dibasic acids |
06/14/1994 | US5321156 Process for preparing alkali metal salts of 3-hydroxypropionic acid |
06/14/1994 | US5321155 Process for the production of cyclohexyladipates and adipic acid |
06/14/1994 | US5321154 Using optically active phenyl amine-type compound as a resolvi resolving agent |
06/09/1994 | WO1994012460A1 Process for preparing substantially pure enantiomers of phenylpropionic acids |
06/09/1994 | WO1994012459A1 A process for the preparation of a trimer acids product of improved colour |
06/09/1994 | WO1994012451A1 SELECTIVE PRECIPITATION OF α-ARYL CARBOXYLIC ACID SALTS |
06/09/1994 | WO1994012275A1 Chiral adsorbents and preparation thereof as well as compounds on which the adsorbents are based and preparation of these compounds |
06/09/1994 | CA2149436A1 A process for the preparation of a trimer acids product of improved colour |
06/08/1994 | EP0600375A1 Process for producing 2,6-naphthalenedicarboxylic acid |
06/08/1994 | EP0600367A1 Method for preparing aromatic vinyl compounds |
06/08/1994 | EP0600333A1 Catalytic oxidation of isobutane to methacrylic acic and methacrolein |
06/08/1994 | EP0600317A1 Process for the preparation of halogenated benzoic acids |
06/08/1994 | CN2167777Y Internal tri-rib talcum porcelain-ring carrier |
06/08/1994 | CA2103745A1 Separation process |
06/07/1994 | US5319134 Process for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereof |
06/07/1994 | US5319131 α-fluoroacrylic acid esters and polymers thereof |
06/07/1994 | US5319110 Process for the preparation of 3,4-dihydroxybutanoic acid and salts thereof |
06/07/1994 | US5319106 Stabilization of mixtures of maleic anhydride and acrylic acid during distillation |
06/07/1994 | CA1329982C Composition containing divalent manganese ion and method for preparing the same |
06/01/1994 | EP0599688A1 Process for O-alkylation of phenolic compounds |
06/01/1994 | EP0370083B1 Seal for rotatable shaft |
06/01/1994 | CN1087290A Multimetal oxide compositions |
05/30/1994 | CA2110085A1 Process for the preparation of halogenated benzoic acids |
05/26/1994 | WO1994011332A1 A novel arylpropionic derivative, a process for the preparation and the use thereof as an analgesic agent |
05/25/1994 | CN1024660C Oxidation process for mfg. aromatic acids from alkylaromatic compounds |
05/25/1994 | CN1024658C Process for carbonylation of acetylenically unsaturated compounds |
05/24/1994 | US5315043 Aromatic nucleophilic fluorination |
05/24/1994 | US5315037 Process for purification of acrylic acid |
05/24/1994 | US5315033 Nafion |
05/24/1994 | US5315030 Catalytic carbonylation of ethers and thioethers |
05/24/1994 | US5315029 Ibuprofen |
05/24/1994 | US5315028 Olefinic process for preparing aryl-substituted aliphatic carboxylic esters |
05/24/1994 | US5315026 Process for preparing aryl-substituted aliphatic carboxylic acids and their esters using cyclic phosphine catalysts |
05/24/1994 | US5315021 Process for removing chlorophyll color impurities from vegetable oils |
05/24/1994 | US5314877 Cariostatic |
05/18/1994 | EP0597751A1 Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates |
05/18/1994 | EP0597671A1 Low chlorine overbased calcium salts |
05/18/1994 | EP0597662A1 Nickel catalyst containing a clay binder |
05/18/1994 | EP0597235A1 Production of citric acid and trisodium citrate from molasses |
05/18/1994 | EP0597151A1 Method for preparing formic acid |
05/18/1994 | CN1086804A A process for the preparation of adipic acid and other aliphatic dibasic acids |
05/18/1994 | CN1086803A A recycling process for the production of adipic acid and other aliphatic dibasic acids |
05/18/1994 | CN1086741A Polymeric carbonylation catalyst system |
05/18/1994 | CN1024543C Process for bicyclohexyl-3,4,3,4-tetra-formic acid |
05/17/1994 | US5312982 Process for the preparation of β-halogeno-tert.-alkyl-carboxylic acid chlorides |
05/17/1994 | US5312981 Hydrolysis of alkyl dicarboxylates |
05/17/1994 | US5312979 Catalytic carbonylation of acid to form diacids |
05/17/1994 | US5312978 Oxidizing vitamin A aldehyde |
05/17/1994 | US5312976 Process for the preparation of 2-hydroxy-naphthalene-6-carboxylic acid |
05/17/1994 | US5312975 Using a transition metal catalyst |
05/17/1994 | US5312969 Linear dicarbonylation of difunctionalized butenes |
05/17/1994 | US5312958 Process for producing 4-bromomethylbiphenyl compounds |
05/17/1994 | US5312941 Preparation from dicarboxylic acid, calcium hydroxide and/or oxide, and hydroxides of aluminum and sodium or sodium aluminate; use to stabilize halogen-containing thermoplastic resins |
05/17/1994 | US5312935 Purification of fluorinated carboxylic acids |
05/17/1994 | US5312933 Method of producing symmetrical difatty acid diamides |
05/17/1994 | CA1329613C Leukotriene antagonists |
05/11/1994 | WO1994010122A1 Process for the preparation of carboxylic acids and esters thereof by oxidative cleavage of unsaturated fatty acids and esters thereof |
05/11/1994 | WO1994010121A1 Depolymerization of substantially amorphous polyesters |
05/11/1994 | WO1994010106A2 Acid catalyst and use thereof in alkylation of olefins with tertiary alkanes |
05/11/1994 | WO1994010083A1 Method of recovering iodine from iodated organic compounds |
05/11/1994 | EP0596859A2 Carbonylation catalyst |
05/11/1994 | EP0596672A2 Radical grafted carbonyl containing compounds and preparation |
05/11/1994 | EP0596632A1 Process for preparing carboxylic acids |
05/11/1994 | EP0596484A1 Process for preparing formic acid |
05/11/1994 | EP0596483A2 Process for the preparation of methyl formiate |
05/11/1994 | CN1086509A Preparation of formic ether |
05/11/1994 | CN1086508A Preparation of formic acid |
05/11/1994 | CA2147742A1 Process for the preparation of carboxylic acids and esters thereof by oxidative cleavage of unsaturated fatty acids and esters thereof |
05/11/1994 | CA2147373A1 Method of recovering iodine from iodated organic compounds |
05/11/1994 | CA2145747A1 Depolymerization of substantially amorphous polyesters |
05/11/1994 | CA2102332A1 Low chlorine overbased calcium salts |
05/10/1994 | US5310959 Reacting 1-decyne with 1,4-dihalo-2-butyne using a strong base and then reacting with 5-hexynoic acid; reacting with an amine in the presense of carbonyldiimidazole to amidate |
05/10/1994 | US5310948 Cobalt catalyst and hydroxypyridone |
05/10/1994 | US5310944 Caprolactone from cyclohexanone, organoarsinic acid catalyst that can be reused |
05/10/1994 | US5310905 Depolymerizing in autoclave with aliphatic monocarboxylic acid |
05/10/1994 | US5310419 Method of preparing inorganic polymeric water complexes and products so produced |
05/10/1994 | CA2102766A1 Enhanced process for the recuperation of alkaline or alkaline earth metal terephtalate and of alkyleneglycol from alkylene polyterephtalates |
05/10/1994 | CA1329396C Method for producing ibuprofen |
05/06/1994 | CA2109473A1 Process for preparing carboxylic acids |
05/06/1994 | CA2102471A1 Carbonyl containing compounds via radical grafting |
05/05/1994 | DE4236724A1 Verfahren zur Rückgewinnung von Jod aus jodierten organischen Verbindungen Process for the recovery of iodine from iodinated organic compounds |
05/04/1994 | EP0595576A2 Stabilized sorbic acid or salt thereof |
05/04/1994 | EP0595369A1 Alkene compounds |
05/04/1994 | EP0594814A1 Metal carboxylates of alkylene bis-phenol alkonic acids useful as additives for fuels and lubricants. |
05/04/1994 | EP0594758A1 Novel process for aromatic bromination |
05/04/1994 | EP0594608A1 Chiral catalysts for enantioselective synthesis. |