Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
06/1987
06/30/1987CA1223541A1 Process for separating sulfuric acid and carboxylic acids
06/24/1987EP0226566A1 Oxidation of 2-arylpropanals
06/24/1987EP0226544A2 Derivatives of alkyl-bicyclo[2.2.1]hept-5-ene-2-carboxylic acids
06/24/1987EP0226519A1 Process for preparing alpha-hydroxycarboxylic acids
06/24/1987EP0226161A1 Improved process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid
06/24/1987EP0226119A1 Halogen-tetrafluoropropionic acid, process for its preparation and its use
06/24/1987EP0122019B1 A prostaglandin analogue
06/23/1987US4675440 Process for preparing purified, virtually odorless solid benzoic acid
06/23/1987US4675438 Direct continuous flow integration of production and purification of high purity iso- or terephthalic acid
06/23/1987US4675421 Hydroquinone derivatives and a process for their preparation
06/23/1987US4675420 Generation of reduced pressure in apparatuses in the preparation of phthalic anhydride and maleic anhydride
06/23/1987US4675419 Process for preparing α-hydroxy-acids and compounds obtained by this process
06/23/1987US4675418 Process for preparing alkanoic acids or esters thereof by rearrangement of alpha-halo-ketones in protic medium and in the presence of a non-noble metal salt
06/23/1987US4675108 Apparatus for treating wash water from the manufacture of terephthalic acid
06/23/1987CA1223276A1 Preparation of isobutyryl fluoride
06/23/1987CA1223256A1 Process for cyclizing orthobenzoylbenzoic acid
06/23/1987CA1223255A1 Carbacyclin derivatives, process for their preparation and their use as medicaments
06/19/1987DE3543879A1 Process for the preparation of 2,6-naphthalenedicarboxylic acid by oxidising 6-alkyl-2-naphthoic acid
06/17/1987CN86108018A New functionalized perfluoropolyethers and process for the preparation thereof
06/16/1987US4673761 Process for preparing anti-inflammatory cycloalkylidenemethylphenylacetic acid derivatives
06/16/1987US4673753 Rhodium oxymetallate catalysts
06/16/1987US4673666 Antiinflammatory agents, antipyretics
06/16/1987US4673519 Low-energy process for the manufacture of calcium/magnesium acetate-chloride deicers and freezing point depressants
06/16/1987CA1222998A1 Preparation of methacrylic acid and catalyst therefor
06/10/1987EP0225143A2 The production of ethylene-derived chemicals from gaseous paraffins
06/10/1987EP0225011A1 Pesticidal (1'-naphthyloxy)-alkene (or -alkadiene)-carboxylic-acid amides
06/10/1987EP0224938A2 Intermediates for the production of podophyllotoxin and related compounds and processes for the preparation and use thereof
06/09/1987US4672065 N-substituted phenoxyacetamide fungicides
06/09/1987US4671892 Process and apparatus for saponification reactions, and the like
06/09/1987US4671857 Third component for efficiency
06/09/1987CA1222773A1 Process for the manufacture of acetic acid, acetaldehyde and ethanol
06/09/1987CA1222772A1 Process for preparing alkaline metal salts of polyethoxycarboxylic acids
06/04/1987WO1987003283A1 New carbacyclines, process for their production and their use as medicaments
06/04/1987WO1987003280A1 Process for the co-production of aromatic carboxylates and alkyl iodides
06/04/1987WO1987003279A1 Process for the co-production of aromatic carboxylates and alkyl iodides
06/04/1987WO1987003278A2 Synthetic routes to cyclopentanecarboxylic acid derivatives
06/04/1987DE3639605A1 Use of tiamulin pamoate
06/03/1987EP0224420A1 Process for the separation and purification of salicylic acid
06/03/1987EP0224401A1 Process for the preparation of alkanoic acids
06/03/1987EP0224368A2 Method for producing purified terephthalic acid
06/03/1987EP0224275A1 Carbacyclines, process for their preparation and their use as medicines
06/03/1987EP0224201A1 Functionalized perfluoropolyethers and process for their preparation
06/03/1987EP0223877A1 Process for the production of methacrolein and methacrylic acid
06/03/1987CN86106151A Improved process for tetrafluorobenzoic acids
06/03/1987CN85108701A Preparation of iso-octyl acid from iso-octyl alcohol by catalytic oxidation
06/02/1987US4670587 Sublimation of crude mixture
06/02/1987US4670586 Rearrangement reaction of ketal in the presence of zinc compound
06/02/1987US4670585 Process for preparing 2-carboxydibenzoylmethanes
06/02/1987US4670572 Immunoassay
06/02/1987US4670570 Oxygenation catlaysts
06/02/1987US4670416 Nickel-based catalyst, its preparation and its application
06/02/1987US4670415 Phosphorous-vanadium-oxygen
06/02/1987US4670192 Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate
06/02/1987US4670105 Using acid amide extractive agent
06/02/1987CA1222438A1 Unified test means for ion determination
05/1987
05/27/1987EP0223723A1 Process for the separation and purification of p-hydroxy-benzoic acid
05/27/1987EP0223620A1 Process for the preparation of bromo-fluoro-acetic acid
05/27/1987CN86105464A Recovery of noble metal values from carbonylation residues using immiscible liquids
05/26/1987US4668830 Process for the preparation of compounds containing a difluoromethylene or trifluoromethyl group
05/26/1987US4668822 Method for preparing (+)S-2--hydroxy-2-methyl-hexanoic acid
05/26/1987US4668816 High yield carbonylation of halo-hydrocarbons
05/26/1987US4668802 Vanadium-phosphorus oxide catalyst
05/26/1987US4668652 Catalyst for oxidation reactions and process for its production
05/26/1987US4668615 Carboxylic acid salt as base precursor
05/21/1987DE3540378A1 Process for the preparation of fluorinated carboxylic acids, carboxylates and carboxamides
05/20/1987EP0222673A1 Process for the preparation of anhydrous crystalline alkali metal salts of trifluoroacetic acid
05/20/1987EP0222530A1 Vanadium-containing mixed metal soap solutions and a process for their preparation
05/20/1987EP0222500A1 Purification of crude terephthalic acid
05/20/1987EP0222499A1 Purification of terephthalic acid to relatively low levels of 4-carboxybenzaldehyde and catalyst therefor
05/20/1987EP0222487A1 Improved catalysts for preparation of carboxylic anhydrides
05/20/1987EP0222460A1 High yield carbonylation of halo-hydrocarbons
05/20/1987EP0222145A1 Process for the preparation of carboxylic acids and their alkali metal salts
05/19/1987US4667056 Process for preparing hydratropic acids and esters thereof, from propiphenones
05/19/1987US4667050 Noble metal catalyzed alkylation to produce substituted vinylcyclopropane carboxylates
05/19/1987US4666941 Pharmaceutical uses of substituted 6(5,6,7,8)tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-2-naphthoic acid and its esters
05/19/1987US4666902 Tetrahydropyridazinone derivatives, processes for their preparation and their use
05/19/1987US4666635 Nickel-based catalyst, its preparation and its application
05/19/1987US4665688 Power generating station with an integrated coal gasification plant
05/14/1987DE3538911A1 Method for heating a liquid and/or gaseous product
05/13/1987EP0221888A2 Process for removing oxalic acid from acidic fermentation liquids of citric acid-forming microorganisms
05/13/1987EP0221880A1 Process for the isolation of high-purity tri-calcium citrate from aqueous solutions containing citric acid
05/13/1987EP0221876A2 Iron/lithium - promoted catalysts for the production of maleic anhydride and a process for the preparation thereof
05/13/1987EP0221815A1 Process for the preparation of alkanoic acids
05/13/1987EP0221136A1 Catalyst recovery process.
05/12/1987US4665226 Process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid
05/12/1987US4665215 Acetoxyacetophenone intermediate
05/12/1987US4665212 Condensation of hydroquinone with carboxyalkyl sulfonate
05/12/1987US4665200 Method for preparing pyromellitic acid and/or pyromellitic anhydride
05/12/1987US4664851 Process for the co-production of carboxylic acids and carboxylic acid esters
05/12/1987US4664766 Photochemical process for neutralizing perfluoropolyethers
05/12/1987US4664753 Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether, methyl acetate or methanol to a carbonylation reaction
05/12/1987US4663931 Power generating station with an integrated coal gasification plant
05/06/1987EP0220835A1 Process for dimerization of aromatic halide compounds
05/06/1987EP0220516A1 Process for the production of aromatic carboxylic-acid chlorides
05/06/1987EP0220480A1 Catalytic hydrogenation process
05/06/1987EP0130582B1 Process for the production of acetic acid and methyl acetate
05/06/1987EP0101719B1 Formation of isobutyric acid or methyl isobutyrate
05/06/1987CN86107247A Iron/lithium-promoted catalysts for production of maleic anhydride and process for preparation thereof
05/05/1987US4663480 Manganese nitrate
05/05/1987US4663479 Preparation of aliphatic carboxylic acids and aldehydes by upgrading alpha-hydroxycarboxylic acids