| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/25/1996 | WO1996011908A1 Modified polyunsaturated fatty acids |
| 04/25/1996 | WO1996011902A1 Pharmaceutically active substituted aromatic compounds |
| 04/25/1996 | WO1996011900A1 Process for the preparation of 3-phenylpropionic acid |
| 04/25/1996 | WO1996011899A1 Process for preparing aromatic carboxylic acids with efficient energy recovery |
| 04/25/1996 | WO1996011898A1 Process for the preparation of 3-phenylpropanal |
| 04/25/1996 | DE4437881A1 Recovering the raw materials from polyester film waste |
| 04/24/1996 | EP0708074A1 Process for the preparation of pyromellitic anhydride |
| 04/24/1996 | EP0707563A1 Production of dicarboxylic acids or esters thereof |
| 04/24/1996 | EP0707562A1 Production of dicarboxylic acids |
| 04/24/1996 | CN1121064A Process for preparing trifluoroacetyl fluoride |
| 04/24/1996 | CN1031638C New technology of synthetic glycolic acid |
| 04/23/1996 | US5510538 Process for the oxidation of primary and secondary alcohols to aldehydes and ketones and for the oxidation of 1,2-diols to α-ketols and α-diketones |
| 04/23/1996 | US5510525 Direct catalytic oxidative carbonylation of lower alkanes to acids |
| 04/23/1996 | US5510524 Process for the production of a carboxylic acid |
| 04/23/1996 | US5510523 Contacting methanol with carbon monoxide gas mixture having low hydrogen content in presence of carbon-supported rhodium metal catalyst, methyliodide promoter, and water vapor |
| 04/23/1996 | US5510521 Process for the production of aromatic carboxylic acids |
| 04/23/1996 | US5510520 Reacting optically active bifunctional resolving agent with bifunctional compound to form liquid material, precipitating crystals, separating, treating with acid and/or base, heating liquid, cooling, separating crystals, treating as before |
| 04/23/1996 | US5510515 Process for purifying polar vinyl compound |
| 04/23/1996 | US5510503 Bisphosphines for asymmetric hydrogenation catalysts |
| 04/23/1996 | US5510308 Oxidation of butane to maleic anhydride |
| 04/22/1996 | CA2160765A1 Process for the preparation of pyromellitic anhydride |
| 04/18/1996 | WO1996011179A1 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium |
| 04/18/1996 | DE4436385A1 Olefinically unsatd. cpds. prodn. by catalytic oxidn.-oxidative dehydrogenation |
| 04/17/1996 | EP0706987A1 Process for preparing alkylated aromatic carboxylic acids and carboxylic acids halogenides |
| 04/17/1996 | EP0706986A1 Process for separating (meth)acrylic acid from the reaction gas mixture of the catalytic oxidation of C3-/C4-compounds in gas phase |
| 04/17/1996 | EP0706540A1 Process for recycling polyesters |
| 04/17/1996 | CN1120834A Ozonide reducing agent |
| 04/17/1996 | CN1120530A The preparation of O-chloromethylbenzoyl chlorides |
| 04/17/1996 | CN1031571C Deprotection of allylic esters and ethers |
| 04/17/1996 | CN1031563C Process for producing chloracetic acid |
| 04/17/1996 | CN1031562C Prepn. of high concentration formic acid at lower temp. |
| 04/16/1996 | US5508455 Using an alkylbenzene sulfonic acid as acid catalyst and specific ratios of reactants |
| 04/16/1996 | US5508444 Cyclic compounds |
| 04/16/1996 | US5508443 Mixing, cooling vapor phase product with recycled by-products with freezing points lower than that of anhydride; free of solid phase |
| 04/14/1996 | CA2160307A1 Process for the preparation of alkylated aromatic carboxylic acids and acyl halides |
| 04/12/1996 | CA2160215A1 Separation of (meth)acrylic acid from the reaction gas mixture formed in the catalytic gas phase oxidation of c3/c4 compounds |
| 04/11/1996 | WO1996010554A1 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof |
| 04/11/1996 | WO1996010553A1 A process for producing metal carboxylates for use as animal feed supplements |
| 04/11/1996 | CA2200597A1 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof |
| 04/10/1996 | EP0705851A2 Catalyst systems and process for producing broad molecular weight distribution polyolefin |
| 04/10/1996 | EP0705137A1 Oxidative cleavage of alkenes |
| 04/10/1996 | EP0553205B1 Carbonylation of allylic alcohols and synthesis of an ambergris fragrance compound |
| 04/10/1996 | CN1031507C Process for purification of carboxylic acids |
| 04/10/1996 | CN1031506C Oxo process for organic acid with halohydrocarbon under normal pressure |
| 04/09/1996 | US5506334 Salts of pyromellitic acid, a process for their preparation and their use |
| 04/09/1996 | US5506187 Catalysts for the production of maleic anhydride by the oxidation of butane |
| 04/04/1996 | WO1996010008A1 Conversion of nylon 6 and/or nylon 6,6 to adipic acid |
| 04/04/1996 | WO1996010007A1 Basic zirconium carboxylates |
| 04/04/1996 | WO1996010006A1 Process for producing monocarboxylic and/or dicarboxylic acids |
| 04/04/1996 | DE4435332A1 Carboxylic acid prodn. by aldehyde oxidn. |
| 04/04/1996 | CA2201398A1 Basic zirconium carboxylates |
| 04/03/1996 | EP0704447A1 Reactions catalyzed by haloporphyrins |
| 04/03/1996 | EP0703892A1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process |
| 04/03/1996 | EP0703891A1 Process for producing an omega-functionalized aliphatic carboxylic acid |
| 04/03/1996 | CN1119855A Carboxylic acid isomerisation method |
| 04/03/1996 | CN1119638A Catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid and method for production of unsaturated aldehyde and unsaturated carboxylic acid by the use of the catalyst |
| 04/02/1996 | US5504249 Catalytically reacting a corresponding lactone with thionyl chloride |
| 04/02/1996 | US5504247 Fractional crystallization comprising dynamic and static stages |
| 04/02/1996 | US5504246 Endcapping the carboxylation with halogen compound oxidizing agent in presence of a hindered nitroxide catalyst |
| 04/02/1996 | US5504245 Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof |
| 04/02/1996 | US5504243 Method for inhibiting polymerization of (meth) acrylic acid and esters thereof |
| 04/02/1996 | US5504230 Preparation of 9-(Z)-retinoic acid |
| 04/02/1996 | US5504229 Synthesis of aliphatic C2 -C22 carboxylic acids |
| 04/02/1996 | US5504218 Method for production pyromellitic anhydride |
| 04/02/1996 | US5503750 Flowing fermentation broth through ultrafiltration zone, withdrawing retentate with cells, then flowing permeate through nanofiltration zone and reverse osmosis of that permeate, recycling retained cells |
| 04/02/1996 | US5503645 Compound having improved low temperature fluidity, and a middle distillate composition and a petroleum fuel composition containing the same |
| 03/28/1996 | DE19509760C1 Fractionation of mixt. of lanolin acids |
| 03/27/1996 | EP0703212A1 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 03/27/1996 | EP0703210A1 Process for producing 2,6-di-tert-alkylcyclohexanol |
| 03/27/1996 | EP0702517A1 Quaternary ammonium and waterproofing/preservative compositions |
| 03/27/1996 | CN1119433A Process for the carbonylation of acetylenically unsaturated compounds |
| 03/27/1996 | CN1031402C Refinement of acetic acid by ethyl aldehyde oxidation process |
| 03/27/1996 | CA2145822A1 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 03/26/1996 | US5502252 Fungicides for rice and cucumbers |
| 03/26/1996 | US5502249 Distillation in presence of iodide scavenging metals or alloys |
| 03/26/1996 | US5502248 Fluidized beds with adsorbers for separation of alcohols from acids and desorption |
| 03/26/1996 | US5502247 Process for recovery of aromatic acid or ester and polyol from waste polyester resins |
| 03/26/1996 | US5502243 Forming ethylidene diacetate from dimethyl ether, methanol and synthesis gas |
| 03/26/1996 | US5502226 Process of preparing ω-hydroxy acids |
| 03/26/1996 | US5502075 Leukotriene-B4 derivatives, process for their production and their use as pharmaceutical agents |
| 03/26/1996 | US5501807 Neutralize aliphatic carboxylic acids with calcium hydroxide in presence of volatile solvent, carbonation, solvent/water removal |
| 03/21/1996 | WO1996008473A1 Improved process for r (+) 1,2,3,6-tetrahydro-4-phenyl-1-[(3-phenyl-3-cyclohexen-1-yl)methyl]pyridine, a central nervous system agent |
| 03/21/1996 | WO1996008459A1 Process for recovering citric acid |
| 03/21/1996 | WO1996008310A1 Improved high performance vpo catalyst and process of preparation thereof |
| 03/21/1996 | CA2194000A1 Improved process for r (+) 1,2,3,6-tetrahydro-4-phenyl-1-¬(3-phenyl-3-cyclohexen-1-yl)methyl|pyridine, a central nervous system agent |
| 03/20/1996 | EP0701990A1 Hydrocarbonylation of dimethyl ether |
| 03/20/1996 | EP0701989A1 Process for preparing mono- and dicarboxylic acids from unsaturated fatty acids and/or their derivatives |
| 03/20/1996 | EP0594580B1 Olefinically unsaturated adducts of propylene on polyunsaturated fatty acids or fatty acid esters, process for producing them and their use |
| 03/20/1996 | CN1118778A Method for inhibiting polymerization of (meth) acrylic acid and esters thereof |
| 03/20/1996 | CN1031323C Heterogeneous rhodium catalyst for methanol carbonylation reaction and prepn. thereof |
| 03/20/1996 | CA2132411A1 Enzymatic esterification of long-chain racemic acids and alcohols |
| 03/17/1996 | CA2158409A1 Process for the preparation of mono- and dicarboxylic acids from unsaturated fatty acids and/or derivatives thereof |
| 03/14/1996 | WO1996007631A1 Method of inhibiting vinyl compound polymerization |
| 03/14/1996 | DE4440191C1 Prepn. of tartaric acid by oxidative conversion of 5-keto-gluconate |
| 03/14/1996 | DE19502050A1 New derivs. of valproic acid |
| 03/13/1996 | EP0700893A1 Process for the catalytic vapour phase oxidation of acrolein to acrylic acid |
| 03/13/1996 | EP0700892A1 Process for preparing mono- or dicarboxylic acids from aldehydes, their acetals or hemi-acetals as well as from their mixtures |
| 03/13/1996 | EP0700371A1 Process for the manfuacture of linear hydrofluorocarbons containing end group hydrogen substituents and azeotropes thereof |
| 03/13/1996 | EP0656811B1 Polymeric carbonylation catalyst system |
| 03/13/1996 | CN1118345A Process for the preparation of acetic acid |