Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
07/1999
07/28/1999EP0777640B1 Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid
07/27/1999US5929274 Dissolving the crude acid by heating in a solvent, cooling to crystallize and separating; oxidizing the filtered solution, desolventizing by evaporation, cooling to crystalize and circulating the mother liquor
07/21/1999CN1044230C Terephthalic acid production
07/15/1999WO1999035117A1 Process for making certain benzoic acid compounds
07/15/1999CA2318489A1 Process for making certain benzoic acid compounds
07/13/1999CA2141496C Organometallic fluorenyl compounds, preparation, and use
07/08/1999WO1999033821A1 Benzopyran and benzothiopyran derivatives having retinoid antagonist-like activity
07/06/1999US5919818 Tocotrienols and tocotrienol-like compounds and methods for their use
07/01/1999WO1999021838A8 Process for the preparation of eberconazol and intermediates thereof
06/1999
06/30/1999EP0926125A1 Continuous process for the preparation of pyvaloyl chloride and aroyl chloride
06/24/1999WO1999031038A1 Method to produce aromatic carboxylic acids
06/24/1999CA2315151A1 Method to produce aromatic carboxylic acids
06/16/1999EP0922693A1 Process for the preparation of 3-chloro-4-fluorobenzoyl chloride
06/16/1999EP0921856A1 Catalyst recovery
06/10/1999WO1999028285A1 Method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes
06/09/1999EP0775103B1 Retinoic acid x-receptor ligands
06/09/1999CN1219162A Azeotropic distillation process
06/02/1999EP0919536A1 Fluorine-substituted 4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same
05/1999
05/27/1999WO1999025681A1 Method for preparing bromomethyl-biphenyl derivatives
05/26/1999CN1217653A Functionalized nanotubes
05/20/1999WO1999024139A1 Separation process
05/20/1999WO1999010527A3 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
05/19/1999EP0915831A1 Novel method for preparing aromatic amides and intermediates therefor
05/19/1999CN1216980A Triaryl compounds
05/14/1999WO1999023055A1 Method and apparatus for preparing purified terephthalic acid
05/14/1999WO1999016738B1 Recovery of 2,6-naphthalene dicarboxylic acid from polyesters
05/06/1999WO1999021838A1 Process for the preparation of eberconazol and intermediates thereof
05/04/1999US5900434 Method for inhibiting the production of interleukin-1 or tumor necrosis factor-α by administering acanthoic acid
04/1999
04/28/1999EP0910560A1 Process for preparing 2-aryl-substituted indenes
04/28/1999EP0910466A1 Methods and devices for oxidizing a hydrocarbon to form an acid
04/28/1999EP0910340A1 Functionalized nanotubes
04/20/1999US5895827 Process of recovering useful material through cracking of plastic material
04/15/1999WO1999018062A1 Process for the purification of naphthalenedicarboxylic acid
04/14/1999EP0908438A2 Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives
04/13/1999CA1340492C Novel naphthyridine-and quinoline-carboxylic acids as bacterial agents
04/08/1999WO1999016738A1 Recovery of 2,6-naphthalene dicarboxylic acid from polyesters
04/08/1999WO1999010322B1 Bi-aromatic compounds bound by a heteroethynylene radical and pharmaceutical and cosmetic compositions containing same
03/1999
03/31/1999EP0905118A1 Unsaturated 6-tert-butyl-1,1-dimethylindane derivates substituted in the 4-position and their use in human and veterinary medicine as well as in cosmetics
03/31/1999EP0904259A1 Processes using multistaged reactors
03/31/1999EP0837842A4 Methods and devices for making intermediate oxidation products by controlling conversions and temperatures in an atomized liquid
03/24/1999EP0903334A1 Halogenated aromatic derivatives and process for the preparation thereof
03/24/1999EP0745063B1 Substituted biphenyl derivatives as phosphodiesterase inhibitors
03/23/1999US5886218 Reacting 3,4-dichlorotoluene with acetyl chloride or chloroacetyl chloride using a friedel-crafts catalyst; oxidizing the acetylated intermediate in the presence of an alkali to produce the salt subsequently hydrolyzed
03/23/1999US5886043 Antiarthritic agents, antitumor agents, antiinflammatory agents
03/23/1999US5886024 Thiophene-containing butonic acid derivatives as matrix metalloprotease inhibitors
03/18/1999DE19740632A1 Tetrafluoro-benzene derivative preparation
03/17/1999EP0678087B1 Compounds having selective activity for retinoid x receptors, and means for modulation of processes mediated by retinoid x receptors
03/16/1999CA2247231A1 Process for the preparation of 2,3,4,5,-tetrafluorobenzene derivates
03/04/1999WO1999010527A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
03/04/1999WO1999010322A1 Bi-aromatic compounds bound by a heteroethynylene radical and pharmaceutical and cosmetic compositions containing same
03/04/1999WO1999010308A1 Biphenyl derivatives substituted by an aromatic or heteroaromatic radical and pharmaceutical and cosmetic compositions containing same
03/04/1999CA2300885A1 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
03/03/1999EP0899256A2 Method for production of organic fluorine compound
03/03/1999CN1209802A Synthesis and use of retinene derivative having negative hormone and/or antagonist activities
03/03/1999CN1209801A Process for producing terephthalic acid
03/03/1999CN1209800A Process for producing terephthalic acid
03/03/1999CN1209799A Process for producing terephthalic acid
03/02/1999US5877346 Process for the production of terephthalic acid
03/02/1999US5877207 Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
02/1999
02/25/1999DE19736366A1 Isolating anionic substances e.g. protein, nucleic acids, from aqueous systems
02/24/1999CN1042222C Process for prepn. of cyclopentene, cyclopentane and cyclohexane derivatives
02/23/1999US5874473 Substituted cycloalkanecarboxylic acid derivatives as matrix metalloprotease inhibitors
02/16/1999US5872291 Reaction of aromatic aldehyde with chlorine in the presence of inert gases
02/16/1999US5872284 Method for purifying crude naphthalenedicarboxylic acid
02/16/1999US5872283 Process for decarboxylation of halogenated aromatic carboxylic acids
02/09/1999US5869657 Cyclization; hydrogenation; reacting with a dialkoxymethane
02/04/1999WO1999005151A1 Porous solid products of 1,3,5-benzenetricarboxylate and metal ions
02/02/1999US5866723 Intermediates for an active class of aryl-haloalkylpyrazole and aryl alkylsulfonylpyrazole herbicides.
01/1999
01/28/1999WO1999003810A1 Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide
01/28/1999CA2297455A1 Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide
01/27/1999CN1206398A Naphthalenedicarboxylic acid particles and process for production thereof
01/27/1999CN1206397A Process for preparing aromatic dicarboxylic acid
01/27/1999CN1041821C Process for preparing terephthaiate or terephthalic acid
01/27/1999CN1041819C Apparatus of producing aromatic carboxylic acid
01/21/1999DE19730783A1 Hydroformylierung mit unmodifizierten Rhodiumkatalysatoren in überkritischem Kohlendioxid Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide
01/20/1999EP0891318A1 Azeotropic distillation process
01/20/1999CN1205244A Hydrogenation catalysts
01/19/1999US5861428 Alleviation of osteoarthritis, rheumatoid arthritis, septic arthritis, periodontal disease, corneal ulceration, proteinuria, aneurysmal aortic disease, dystrophobic epidermolysis bullosa, inflammation, osteopenias, tempero
01/19/1999US5861427 Substituted 4-biarylbutyric acid derivatives as matrix metalloprotease inhibitors
01/12/1999US5859298 Process for the preparation of 2-halogeno-4,5-difluorobenzoyl fluorides
01/12/1999US5859267 Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith
01/12/1999US5859047 Antiarthritic agents, nervous system disorders
01/07/1999WO1999000346A1 Synthesis of dihydrohonokiol compositions
01/07/1999CA2297723A1 Synthesis of dihydrohonokiol compositions
01/06/1999CN1041515C Method and product for recovery terephthalates and glycol from polyethylene terephthalates
12/1998
12/30/1998WO1998058922A1 Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
12/30/1998CN1203609A Poly (9,9'-spiro-bisfluorenes, production and use of same
12/30/1998CN1203580A Process employing indicator ligands
12/30/1998CN1203578A Process using multistage reactors
12/30/1998CN1203577A Improved metal-ligand complex catalyzed processes
12/30/1998CN1203576A Improved metal-ligand complex catalyzed processes
12/30/1998CA2294601A1 Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
12/29/1998US5854277 Thiophenebutanoic acid derivatives as matrix metalloprotease inhibitors
12/23/1998EP0885193A1 Triaryl compounds
12/23/1998EP0885184A1 Perfluoro(alkoxycycloalkane)carbonyl fluoride compositions and their use
12/23/1998CN1202384A Recovering method for sublimate
12/23/1998CN1041311C Method for preparing benzopyran and related LTB4 antagonists
12/22/1998USRE36008 Process for the production of terephthalic acid
12/22/1998CA2035323C Oxidation of tertiary-alkyl substituted aromatics
12/16/1998CN1201779A Preparation of 2,3,4,5-tetrafluorobenzoic acid
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