Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
05/1987
05/05/1987US4663478 Reaction with haloform or organic halide with cyclodextrin catalysts
05/05/1987US4663474 Synthetic intermediates for a chiral 3-(substituted-phenyl)-4-(3-hydroxypropyl) cyclohexanol
05/05/1987US4663465 Preparation of 2,2-dimethyl-3-aryl-cyclopropanecarboxylic acid and esters and new intermediates therefor
05/05/1987US4663071 Tartrate mono and disuccinates
05/05/1987US4662898 Increasing the temperature of the exit gas from the exit gas washer in the preparation of phthalic anhydride
05/05/1987CA1221374A1 2,3-dihalo-2-fluoro-propanals; process for preparing the same and process for preparing an alkyl or an aryl fluoroacrylate
04/1987
04/29/1987EP0220118A2 Bicyclic naphthalenic derivatives, process for their preparation and their use in human and veterinary medicine and cosmetics
04/29/1987EP0219906A2 Process for the preparation of alkylidene diesters
04/29/1987EP0219601A1 Process for the preparation of (Z)-2-methyl-2-butenoic acid
04/28/1987US4661631 Process for the preparation of acetic acid
04/28/1987US4661628 Process for the optical resolution of racemic mixtures of α-naphthyl-propionic acids
04/28/1987US4661619 Process for the production of carboxylic acids and/or esters thereof
04/28/1987US4661516 Water soluble, antitumor agents
04/28/1987US4661505 4-(4-acetyl-3-hydroxy-2-propylphenoxy) alkanoic acids, tetrazoles, and derivatives
04/28/1987US4661296 HF separation in a carbonylation process
04/28/1987US4661208 Method for dehydrating distillation of an aqueous solution of carboxylic acid
04/28/1987CA1221107A1 Process for the preparation of a carboxylic acid from its corresponding ester of formic acid using a group viii metal catalyst, a halide and a quaternary group v atom as cocatalyst
04/28/1987CA1221099A1 Method for the manufacture of pyromellitic acid dianhydride
04/23/1987WO1987002355A1 Method of making a complexing agent for plant micronutrients
04/23/1987DE3535583A1 Verfahren zur rueckgewinnung von in abwaessern befindlicher essigsaeure Method for the recovery of in-acetic acid wastewater
04/22/1987EP0219484A1 Electrolytic preparation of perfluoroalkanoic acids and perfluoroalkanols
04/22/1987EP0219457A2 Process for the preparation of mixtures of metal salts of ring substituted salicylic acid compounds
04/22/1987EP0219302A2 Recording materials
04/22/1987EP0219288A1 Rhodium on carbon catalyst
04/22/1987CN86107445A New technology of producing caproic acid by 2-octanol and/or 2-octanone
04/22/1987CN86106590A Rhodium on carbon cartalyst
04/21/1987US4659864 Using aluminum bormide and a hydroperoxide
04/21/1987US4659842 Phthalic anhydride process and product
04/21/1987US4659682 Recovery of noble metal values from carbonylation residues
04/21/1987US4659518 Carbonylation with a nickel and molybdenum or tungsten catalyst, an iodide, and an organic nitrogen or phosphorus promoter
04/21/1987US4659513 Disproportionation of unsaturated acids in rosin or tall oil
04/21/1987US4659433 Concentrating and dehydrating apparatus for maleic anhydride
04/15/1987EP0218553A2 Process for the preparation of mixtures of metal salts of ring substituted salicylic acid compounds
04/15/1987EP0218111A1 Process for the preparation of tetrafluorobenzoic acid
04/14/1987US4658061 Antiarrhythmic agents
04/14/1987US4658056 Catalytic oxidation of liquid cycloparaffins
04/14/1987US4658055 Method for manufacture of 7-(2,5-dioxocyclopentyl)heptanoic acid derivative
04/14/1987US4658053 Production of esters
04/14/1987US4658043 Ethers of pantolactone
04/14/1987US4658042 Process for the preparation of maleic anhydride
04/14/1987US4657918 Free from sedative effects
04/14/1987US4657884 Silane triols, rhodium carbonyls, phosphines, sulfur, mercapto, arsenic components on alumina
04/14/1987US4657842 Photosensitive compositions of matter comprising epoxide compounds and functional anthraquinones
04/14/1987US4657708 Ethynyl-containing phthaloyl halides
04/14/1987CA1220466A1 Catalysts containing mixed oxides of vanadium, phosphorus, and aluminum and/or boron
04/14/1987CA1220421A1 Process for the preparation of solid pharmaceutical products
04/09/1987WO1987002034A1 Process for the manufacture of cycloalkane carboxylic acids
04/09/1987WO1987002033A1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof
04/09/1987WO1987002032A1 Process for recovering acetic acids from waste water
04/08/1987EP0217581A1 Carboxylate salt compound and method for flavouring foodstuffs and tobacco
04/08/1987EP0217329A1 Process for preparation of naphthalene-2,6-dicarboxylic acid dialkali metal salts
04/08/1987EP0217191A1 Process for the separation of iodine and its compounds from carbonylation products obtained by the carbonylation of dimethyl ether, methyl acetate or methanol
04/08/1987EP0217182A1 Process for the separation of iodine and its compounds from carbonylation products obtained by the carbonylation of dimethyl ether, methyl acetate or methanol
04/08/1987EP0217092A2 3-Dimethyl-mevalonic-acid derivatives, process for their preparation, pharmaceutical compositions based on these compounds, their use and intermediates
04/08/1987EP0216884A1 Photo-initiator for the photo-polymerization of unsaturated systems.
04/08/1987EP0127551B1 Process for the cyclization of orthobenzoylbenzoic acid
04/08/1987CN86106988A Purification of terephthalic acid to relatively low levels of 4-carboxenzaldehyde
04/08/1987CN86106971A Purification of crude terephthalic acid
04/07/1987US4656307 Derivative of brendane and process for preparing the same
04/07/1987US4656305 Chalcone derivatives
04/07/1987US4656169 Tetracyclic spiro-hydantoin aldose reductase inhibitors and compositions
04/07/1987US4656157 Molded catalyst for reactions carried out under heterogeneous catalysis
04/07/1987US4655973 Anticancer agents
04/07/1987CA1220222A1 Production of formate salts
04/07/1987CA1220221A1 Synthesis of perfluoroalcane-carboxylic acids
04/07/1987CA1220190A1 Catalysts containing mixed oxides of vanadium and phosphorus
04/01/1987EP0216196A2 Racemization of optically active compounds having a bromine substituted chiral carbon atom
04/01/1987CN86106056A Method for preparing bromofluoacetic acid
04/01/1987CN85107015A Process for preparing 2,4-dichloro-5-fluoro-benzoic acid
03/1987
03/31/1987US4654438 Manufacture of alpha-arylalkanoic acids and precursors
03/31/1987US4654437 Supercritical, extraction, melting
03/31/1987US4654436 Carbonylation process for the production of aromatic acids or esters
03/31/1987US4654435 Process for addition reaction of unsaturated organic compounds
03/31/1987US4654425 Hdrocarbons, oxidation, mixed oxide catalyst vanadium, phosphorus, aluminum and/or boron
03/31/1987US4654346 Fungicidal N,N-disubstituted-heterocyclic carboxamides
03/31/1987US4654321 Mixed oxides of ruthenium, copper, alkali (ne earth) metal, other metal
03/31/1987US4654174 Preparation of aliphatic anhydrides and alkylidene dicarboxylates from divinyl ethers and carboxylic acids
03/31/1987US4654075 For ceramics
03/31/1987CA1219861A1 15-cycloaliphatic derivatives of 13,14-didehydro- carboprostacyclins and process for their preparation
03/26/1987WO1987001696A1 Prostacyclins and drugs containing the same
03/25/1987EP0215553A1 Fumed silica modified catalyst and process for oxidation of n-butane to maleic anhydride
03/25/1987EP0215439A2 Method for preparing 3-ethylbenzophenone
03/25/1987EP0215431A2 Process for preparing pyromellitic dianhydride
03/24/1987US4652677 In presence of a palladium supported catalyst; hydrogen halide and organo-arsine ligand compound
03/24/1987US4652675 Process and device for purifying benzoic acid
03/24/1987US4652674 Method for monitoring the fluorescence of 4-carboxy-p-terphenyl in crude terephthalic acid
03/24/1987US4652673 Catalytic vapor phase oxidation of methacrolein in presence of isobutylene and/or tertiary butanol
03/24/1987US4652657 Chiral rhodium-diphosphine complexes
03/24/1987US4652635 Method for converting ether groups to hydroxyl groups and ester groups to acid groups
03/24/1987US4652543 Catalysts useful for the manufacture of maleic anhydride having a characteristic X-ray diffraction pattern
03/24/1987US4652444 Methods and compositions for treating dental structures
03/24/1987CA1219575A1 Nickel-based catalyst, its preparation and its application
03/18/1987EP0214779A1 Tricyclic compounds
03/18/1987EP0214651A2 Method for preparing 3-ethylbenzophenone
03/18/1987EP0214645A2 Process for preparing fine crystal particle of maleic anhydride and maleic anhydride composition containing such maleic anhydride particle
03/18/1987EP0214572A2 Racemization of optically active compounds having a chlorine substituted chiral carbon atom
03/18/1987EP0214426A1 Intermediates in the synthesis of carboxylic acids
03/18/1987EP0214244A1 Process for the manufacture of calcium magnesium acetate
03/18/1987CN85106400A Improved synthesis of 9-carbamoyl-9-(3-aminopropyl) fluorenes
03/17/1987US4650880 Purification of substituted phthalic anhydrides