Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
08/1981
08/25/1981US4286101 Oxidation of p-xylene
08/18/1981US4284584 Process for the preparation of acyl cyanides
07/1981
07/28/1981US4281179 Process for producing terephthalic acid with high purity
07/28/1981CA1105943A1 Process for the preparation of terephthalic acid
07/22/1981EP0032388A1 Derivatives of 5-C-substituted 2,4,6-triiodo-isophthalic acid, process for their preparation and X-ray contrast agents containing them
07/22/1981EP0032387A1 Non ionic 5-C-substituted 2,4,6-triiodo-isophthalic acid derivatives, process for their preparation and X-ray contrast agents containing them
07/15/1981EP0032121A2 Substituted tetrafluorobenzyl alcohols and halides
07/14/1981US4278810 Oxidizing aqueous mixture of p-xylene and p-toluic acid, heavy metal salt catalyst
07/14/1981CA1105052A1 Method for processing a tar containing benzyl benzoate
07/07/1981US4277421 Process for the manufacture of para-tert.butylbenzaldehyde and its derivatives which are halogen-substituted at the nucleus
07/01/1981EP0031200A1 Method of recovering bromine from methyl bromide
07/01/1981EP0031199A1 Substituted benzyl esters of cyclopropane carboxylic acids and their preparation, compositions containing them and methods of combating insect pests therewith, and substituted benzyl alcohols
06/1981
06/30/1981US4276231 Process for the preparation of optionally substituted benzoyl chloride
06/23/1981US4275230 Crystallization of terephthalic acid from water and steam
06/02/1981US4271316 Process for the continuous rearrangement of alkali metal salts of aromatic carboxylic acids
06/02/1981CA1102304A1 Process for the preparation of triterpene derivatives
05/1981
05/26/1981US4269805 Reactor for the oxidation of alkyl aromatics with oxygen-containing gases in the liquid phase
05/19/1981US4268690 Process for producing terephthalic acid of high purity
05/06/1981EP0027941A1 Process for the preparation of carboxylic acid halides
05/06/1981EP0027891A1 Ammonium salts, a process for the preparation of amines underlying these, and coating compositions on the basis of manufactured polyurethane or epoxy resin products which contain the ammonium salts
04/1981
04/22/1981EP0027155A1 Process for dehydrohalogenating (polyhaloalkyl)benzenes
04/08/1981EP0026749A1 Phthalimidine derivatives and pharmaceutical compositions containing them
04/07/1981US4260817 Hydrogenation of p-xylene oxidation by-products using catalyst containing palladium or platinum with other metal
04/01/1981EP0025912A1 2,7-Dialkylfluorescein derivatives and their use in fluorescence immunoassays
03/1981
03/31/1981US4259522 Process for the production of isophtahalic acid
03/24/1981US4257911 Liquid crystal materials
03/11/1981EP0024516A1 4-Fluoro-3-bromobenzoyl fluoride, process for its preparation and for the preparation of 4-fluoro-3-bromobenzoic acid therefrom
03/11/1981EP0024492A1 Process for the preparation of aromatic dicarboxylic acid dichlorides and their use in the preparation of polycondensates
03/04/1981EP0024286A1 Process for the preparation of aromatic dicarboxylic acid dichlorides and their use in the preparation of polycondensates
02/1981
02/17/1981US4251457 Process for purification of the off-gases resulting from the production of benzoyl chloride from phosgene
02/17/1981CA1095917A1 Method for making organic polycarboxylic acids
02/11/1981EP0023647A1 Process for the preparation of halogenated benzoyl fluorides
02/11/1981EP0023584A1 Process for the preparation of trifluoromethyl naphthalenes
02/03/1981US4249022 Process for the manufacture of 1,4-disubstituted bicyclic or tricyclic compounds and new 1,4-disubstituted bicyclic compounds
02/03/1981CA1095076A1 Process for the catalytic gas phase oxidation of toluene with a gas containing molecular oxygen
01/1981
01/21/1981EP0022484A1 Process for the preparation of aromatic dicarboxylic acid dichlorides and their use in the preparation of polycondensates
01/13/1981US4245078 Process for producing terephthalic acid
01/07/1981EP0021747A1 Process for the preparation of terephthalic acid
01/07/1981EP0021373A2 Process for the preparation of aromatic dicarboxylic acid dichlorides and their use in the preparation of polycondensates
01/07/1981EP0021339A1 Sugar esters and glycosides, their preparation and pharmaceutical compositions containing them
01/06/1981US4243636 Apparatus for the continuous liquid-phase catalytic oxidation of alkyl-substituted aromatic compounds
01/06/1981US4243599 Stabilization by dipicolinic acid of the epoxidation of a lower olefin with per-p-toluic acid
12/1980
12/30/1980US4242121 Method of antagonizing herbicides on soyabean and cotton
12/10/1980EP0019702A2 Distyrylebiphenyles, process for their preparation and their use for the optical brightening of organic materials, as well as detergent compositions, textile treating compositions and products for the after-treatment of laundry containing them
12/09/1980US4238294 Process for recovering heavy metal ions or heavy metal ions and halogen values from solutions comprising a lower aliphatic monocarboxylic acid
12/02/1980CA1090781A1 Chrysanthellum plant extract
11/1980
11/25/1980US4235728 Drilling fluids containing novel compositions of matter
11/12/1980EP0018481A1 Process for producing alpha, alpha, alpha-trifluoro-o-toluic fluoride
11/12/1980EP0018433A1 Process for producing aromatic carboxylic acids and methyl esters thereof
10/1980
10/28/1980CA1088560A1 Process for producing terephthalic acid
10/15/1980EP0016899A1 Process for the recuperation of pure dicarboxylic acids, their anhydrides and/or esters
10/07/1980US4227018 Odorless benzoic acid process
10/07/1980US4227017 Hydrolysis of distillate from distillation of impure benzyl benzoate in the presence of a basic substance
10/01/1980EP0016513A2 Esters of halogenated substituted cyclopropanoic acids, their preparation and use as insecticides
09/1980
09/16/1980CA1085871A1 Organic acids and process for preparing same
08/1980
08/05/1980US4216153 Method of preparing phthalide
07/1980
07/22/1980US4214100 Oxidation of tolualdehyde in liquid phase in presence of heavy metal salt and bromine compound
07/15/1980US4212995 Process for treatment by liquid cyclone for production of terephthalic acid suspension having reduced impurity content
07/15/1980US4212992 Fire retardants
07/15/1980US4212991 Dipotassium terephthalate, benzoic acid, potassium benzoate, and water
07/09/1980EP0013100A2 Recovery of bromine from the effluent gases of a bromine catalysed oxidation process
07/08/1980US4211506 Method and apparatus for the metered conveying of pulverulent solids
07/01/1980CA1080727A1 Preparation of epoxides
06/1980
06/25/1980EP0012200A1 Process for preparing colour-stabilized, aromatic carboxylic acid chlorides
06/24/1980US4209462 Form acyl halide and alkali metal cyanide in presence of copper or cuprous oxide
06/24/1980US4209461 From benzoyl chloride and alkali metal cyanide of particular particle size
06/24/1980CA1080252A1 Process for making aromatic acids
06/10/1980US4207241 2-Naphthyl acetic acid derivatives and compositions and methods thereof
06/10/1980CA1079297A1 Continuous process for producing therephthalic acid
06/10/1980CA1079296A1 Iso- or terephthalic preparation in a benzoic acid-water solvent system
05/1980
05/28/1980EP0011288A1 p-Tert.-butylbenzotribromide and his derivatives which are substituted in the ring by halogen, a process for their preparation as well as their use.
05/28/1980EP0011281A2 Process for the preparation of p-tert.-butyl benzaldehyde and the derivatives thereof substituted in the nucleus by halogen.
05/27/1980US4205184 Method for processing a tar containing benzyl benzoate
05/13/1980US4202903 Acyl cyanoguanidines for treating rheumatoid arthritis
05/13/1980CA1077505A1 Process for simultaneously producing p-toluic acid and alkylene oxide
05/06/1980US4201872 Process for preparing purified terephthalic acid
04/1980
04/29/1980US4200755 2-Hydroxy-5-[1-hydroxy-2-[4-(2-oxo-1-benzimidazolinyl)piperidino]ethyl]benzoic acid derivatives
04/22/1980CA1076139A1 Method of producing indan derivatives
04/08/1980US4197412 High purity, oxidation of p-xylene over catalyst manganese, cobalt and bromine compounds
04/08/1980US4197393 Biphenylene polymers and resins and the production thereof
04/08/1980CA1075260A1 Tetramethylbiphenylcarboxylic acids and derivatives thereof
04/02/1980EP0009205A1 Process for the preparation of an optionally substituted benzoyl chloride
03/1980
03/18/1980US4194054 Preparation of substituted fluorobenzenes
03/05/1980EP0008453A1 Process for preparing trifluoromethyl aromatic compounds
03/05/1980EP0008445A1 Process for the preparation of benzoic acid anhydride
03/04/1980CA1072957A1 Composition and preparation of heterocyclic compounds
02/1980
02/26/1980US4190600 Iron/iii/ chloride or bromide halogenation catalyst with sulfur cocatalyst
02/19/1980US4189603 Process for producing high-quality terephthalic acid suitable for use in direct polymerization
02/19/1980CA1072109A1 Process for the manufacture of 1,4-disubstituted bicyclic or tricyclic compounds and new 1,4-disubstituted bicyclic compounds
12/1979
12/11/1979CA1067906A1 Series of 1-arylmethyl-2-imidazolidinones
11/1979
11/28/1979EP0005574A1 Process for the production of an alkali metal benzoate along with a benzyl alcohol
11/27/1979CA1067095A1 Process for producing terephthalic acid
11/13/1979CA1066303A1 Aminobenzoic acid derivatives, process for preparing the same and pharmaceutical composition containing the same
11/13/1979CA1066302A1 Process for making aromatic acids
11/06/1979US4173648 3β-Hydroxy-18β-olean-9-en-30-oic acids
11/06/1979CA1065870A1 Production of therapeutically-active substituted isopropanol derivatives
10/1979
10/23/1979US4172098 Manufacture of substituted halobenzenes
10/16/1979CA1064498A1 3,3,3-trifluoropropionic acid compounds
09/1979
09/25/1979CA1063125A1 (1-oxo-2-aryl or thienyl-2-substituted-5-indanyloxy (or thio)) alkanoic acids and derivatives thereof and processes for preparing same
09/11/1979US4167640 Intermediates for antiinflammatory agents
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