| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/06/1998 | EP0839792A1 Process for the production of intermediate for liquid crystal compound |
| 05/06/1998 | EP0839791A1 Method for preparing fatty acid chlorides |
| 05/06/1998 | EP0839790A1 Antifoulant for acrylic acid purification |
| 05/06/1998 | EP0839787A1 Process for the preparation of an aldehyde |
| 05/06/1998 | EP0839162A1 Optical clarity stabilizing fatty alkyl diethanolamines |
| 05/06/1998 | EP0804403A4 A method for forming two terminal carboxylic acid groups from an ozonide |
| 05/06/1998 | CN1180691A Method for one-step manufacture of stannous caprylate |
| 05/05/1998 | US5746892 Process for pure grade acrylic acid |
| 04/30/1998 | WO1998017671A1 Magnesium (-)hydroxycitrate, method of preparation, applications, and compositions in particular pharmaceutical containing same |
| 04/30/1998 | WO1998017640A1 Hydrogen peroxide adducts |
| 04/30/1998 | WO1998017628A2 A solid-phase technology for the preparation of amides |
| 04/30/1998 | WO1998017622A1 METHOD FOR PRODUCING α-ALKOXY-α-TRIFLUOROMETHYL-ARYL ACETIC ACID ESTERS AND -ARYL ACETIC ACIDS |
| 04/30/1998 | WO1998017621A1 Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid |
| 04/30/1998 | WO1998017620A1 4-fluorosalicylic acid derivatives and process for producing the same |
| 04/30/1998 | WO1998017619A2 Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream |
| 04/30/1998 | WO1998017608A1 Gas-phase oxidization process and process for the preparation of phthalic anhydride |
| 04/30/1998 | CA2269133A1 Method for producing .alpha.-alkoxy-.alpha.-trifluoromethyl-aryl acetic acid esters and -aryl acetic acids |
| 04/30/1998 | CA2268876A1 Magnesium (-)hydroxycitrate, method of preparation, applications, and compositions in particular pharmaceutical containing same |
| 04/29/1998 | EP0838448A1 Process for the separation of a mixture of enantiomers |
| 04/29/1998 | EP0837848A1 4-aryl-1-phenylalkyl-1,2,3,6-tetrahydropyridines having neurotrophic and neuroprotective activity |
| 04/29/1998 | EP0837842A1 Methods and devices for making intermediate oxidation products by controlling conversions and temperatures in an atomized liquid |
| 04/29/1998 | EP0837728A1 Supported carbonylation catalyst |
| 04/29/1998 | CN1180066A Chloroacetic acid producing process |
| 04/29/1998 | CA2219633A1 A method for preparing fatty acid chlorides |
| 04/28/1998 | US5744650 Using metal-organopolyphosphite ligand complex catalyst and controlling carbon monoxide partial pressure and temperature |
| 04/28/1998 | US5744649 Catalysts |
| 04/28/1998 | US5744624 Saponification, salt formation, from diester ) |
| 04/28/1998 | US5744021 2-alkylmercapto-4-(trifluoromethyl)benzoic esters and a process for their preparation |
| 04/23/1998 | WO1998016493A1 Method for selective preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives |
| 04/23/1998 | WO1998016487A1 1s to 1r epimerizations of pyrethroid intermediates |
| 04/23/1998 | DE19643592A1 Verfahren zur Herstellung von alpha-Alkoxy-alpha-trifluormethyl-arylessigsäureestern und -arylessigsäuren Arylacetic esters alpha-alkoxy-alpha-trifluoromethyl--arylessigsäuren and process for the preparation of |
| 04/23/1998 | CA2218804A1 Process for the separation of a mixture of enantiomers |
| 04/22/1998 | EP0837094A2 Basic calcium carboxylates |
| 04/22/1998 | EP0836588A1 Process to prepare 5-formylvaleric acid |
| 04/22/1998 | EP0836587A1 Process for separating pivalic acid from spent reaction mixtures |
| 04/22/1998 | EP0741686B1 New leukotriene b4 derivatives, methods of preparing them and their use as drugs |
| 04/22/1998 | EP0708752B1 Magnesium derivative preparation process |
| 04/22/1998 | CN1179413A Process for producing formate and joint producing various sodium phosphates by acidifying sodium formate with perphosphoric acid |
| 04/22/1998 | CN1179411A Process for production of arabinitol |
| 04/21/1998 | US5741956 Process for the preparation of pentaerythritol |
| 04/21/1998 | US5741945 Processes employing indicator ligands |
| 04/21/1998 | US5741944 Hydroformaylation processes |
| 04/21/1998 | US5741943 Using steric hindered organophosphorus ligand |
| 04/21/1998 | US5741927 Separation process |
| 04/21/1998 | US5741865 Fatty alkly diethanolamines to stabilize the optical clarity of polyols containing zinc fatty acid salts |
| 04/16/1998 | WO1998015519A2 A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof |
| 04/16/1998 | WO1998015518A2 A process for the recovery of lactic acid from aqueous lactate salt solutions, involving the use of ion exchangers |
| 04/16/1998 | WO1998015517A2 Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant |
| 04/16/1998 | WO1998015353A1 Vanadyl pyrophosphate oxidation catalyst precursors |
| 04/15/1998 | EP0835859A1 Process for producing valproic acid |
| 04/15/1998 | EP0675868B1 Process for preparing aryl-substituted aliphatic carboxylic acids and their alkyl esters |
| 04/15/1998 | EP0666838B1 Process for the preparation of carboxylic acids and esters thereof by oxidative cleavage of unsaturated fatty acids and esters thereof |
| 04/15/1998 | EP0655051B1 Process for preparing phenylterephthalic acid |
| 04/14/1998 | US5739394 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives |
| 04/14/1998 | US5739392 Molybdenum-vanadium oxide oxidation catalyst |
| 04/14/1998 | US5739391 Catalytic gas-phase oxidation of acrolein to acrylic acid |
| 04/14/1998 | US5739388 Process for the preparation of aromatic compounds by decarboxylation of aromatic carboxylic acids |
| 04/14/1998 | US5739385 Process for preparing optically active carboxylic acids |
| 04/14/1998 | US5739384 Industrial process to manufacture aromatic carboxylic acids |
| 04/14/1998 | US5739375 Reacting with dimethyl carbonate in presence of a base containing nitrogen for producing an antiinflammatory chemical intermediate |
| 04/14/1998 | US5739374 Processes of preparing diphenylheteroalkyl derivatives |
| 04/14/1998 | US5739355 Process for production of polyisobutenylsuccinic anhydrides without formation of resins |
| 04/14/1998 | US5739352 Process for preparing carboxylic acids |
| 04/14/1998 | US5739175 Photoreactor composition containing an arylketoalkene wavelength-specific sensitizer |
| 04/14/1998 | US5739076 Mixing hydrolyzable titanium compound with compounds of silicon, aluminum and an organic nitrogen base, then crystallization yields titanium-containing zeolite beta |
| 04/09/1998 | WO1998014420A1 Method of refining benzoic acid |
| 04/09/1998 | DE19712339C1 Preparation of 2'-substituted 4-bromo-methyl-bi:phenyl compounds |
| 04/08/1998 | EP0834499A1 Process for the preparation of aromatic vinyl compounds |
| 04/08/1998 | EP0834494A1 Process for preparing hydroxybenzoic acids |
| 04/08/1998 | EP0833810A1 Difluorochloracetyl, dichloracetyl and trichloracetyl chloride preparation |
| 04/08/1998 | EP0833809A1 Nitric acid hydrolysis of polyamides |
| 04/08/1998 | EP0641304B1 Stereo-selective synthesis of 2-aryl-propionic acids of high optical purity by using chiral oxazolines |
| 04/08/1998 | CN1178139A Catalyst for producing benzoic anhydride |
| 04/08/1998 | CN1178138A Process for transformation of vanadium/phophorus mixed catalyst precursor into active catalyst for production of maleic anhydride |
| 04/07/1998 | US5736480 Sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl metal complex dissolved in glass supported film of nonaqueous polar solvent (i.e. ethylene glycol); catalyst selectivity, yield, simplified recovery |
| 04/07/1998 | US5736012 Mixing hydrofluorocarbon with chlorine, oxidizing agent, and additive to prevent or minimize decomposition, radiating |
| 04/07/1998 | US5735915 Simplified process for production of alkenylsuccinimides or polyalkenylsuccinimides |
| 04/07/1998 | CA2003260C Process for the production of carbacyclin derivatives by stereoselective introduction of the 5,6 double bond |
| 04/02/1998 | WO1998013512A1 A method for producing an extract from ganoderma lucidum containing ganoderic acid |
| 04/02/1998 | WO1998013329A1 Molybdenum based oxidation catalysts |
| 04/02/1998 | WO1998013140A1 Catalyst for dehydrogenation of amino alcohols to amino carboxylic acids or of ethylene glycol (derivatives) to oxycarboxylic acids, method for their production and their use |
| 04/02/1998 | DE19742935A1 Selective gas phase oxidation of n-butane to maleic anhydride with very active catalyst easily produced on large scale |
| 04/02/1998 | CA2265977A1 Catalyst for dehydrogenation of amino alcohols to amino carboxylic acids or of ethylene glycol (derivatives) to oxycarboxylic acids, method for their production and their use |
| 04/01/1998 | CN1177590A Method for production of aromatic carboxyl acid |
| 04/01/1998 | CN1037904C Process for jointly producing dichloracetic acid and mercaptoacetic acid |
| 03/31/1998 | US5734078 Alkylation process |
| 03/31/1998 | US5734077 Antilipemic agents, anticholesterol agents, treatment of diabetes and atherosclerosis |
| 03/31/1998 | US5734075 Process for recovery of the light noble products present in the distillation residues from the processes for the manufacture of acrylic acid and of its esters |
| 03/31/1998 | US5734073 Halogenation reactions |
| 03/31/1998 | US5734071 Process for separating lipophilic compounds |
| 03/31/1998 | US5734070 Hardening of unsaturated fats, fatty acids or fatty acid esters |
| 03/31/1998 | US5734066 Oxidation of butane to form maleic anhydride with vanadium phosphate catalyst |
| 03/26/1998 | WO1998012167A1 Process for producing a catalytically active multimetal oxide material |
| 03/26/1998 | WO1998012157A2 Process for purification of aromatic polycarboxylic acids |
| 03/26/1998 | DE19638249A1 Verfahren zur Herstellung einer katalytisch aktiven Multimetalloxidmasse A process for producing a catalytically active multimetal |
| 03/26/1998 | DE19635722A1 Stable organic lead, magnesium and niobium sol with variable rheology, obtained from various starting materials |
| 03/25/1998 | EP0831083A1 Process for synthesizing benzoic acids |
| 03/25/1998 | EP0830358A1 Method to produce and purify cyclic esters |
| 03/25/1998 | EP0830340A1 Face-to-face/face-to-edge interactive chiral selectors and related apparatuses |
| 03/25/1998 | CN1177341A Method for separating and purifying hydroxyno-phthalenecarboxylic acids |