Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
03/2001
03/08/2001WO2001016075A1 Process for making an aromatic diacid in one step using a single catalyst system
03/08/2001WO2001016074A2 An integrated process for the production of 2,6-naphthalene dicarboxylic acid
03/08/2001WO2001016073A1 A process for producing diacids by carboxylation of phenolic compounds
03/08/2001WO2001016072A1 Carboxylation of hydrocarbons to terephthalic acid or naphthalene dicarboxylic acid
03/08/2001WO2001016071A1 A process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid
03/08/2001WO2001016068A2 Disproportionation catalyst
03/08/2001WO2001016067A2 A process for separation of crude naphthalene dicarboxylic acid using reverse osmosis
03/08/2001WO2001016066A2 Closely linking a nda process with a pen process
03/08/2001CA2384507A1 Process for making an aromatic diacid in one step using a single catalyst system
03/08/2001CA2383507A1 A process for separation of the dipotassium salt of naphthalene dicarboxylic acid using activated carbon beds
03/08/2001CA2383506A1 Alkyl carboxylate salts as solvents for henkel-related processes
03/08/2001CA2383422A1 Carboxylation of hydrocarbons to terephthalic acid or naphthalene dicarboxylic acid
03/08/2001CA2383377A1 A method for solvent free hydrodebromination in the production of aromatic carboxylic acids
03/08/2001CA2383374A1 Method for reduction of potassium in an integrated process for the production of 2,6-nda
03/08/2001CA2383359A1 A process for producing diacids by carboxylation of phenolic compounds
03/08/2001CA2383354A1 A process for improving yields in a disproportionation reaction (high yield henkel)
03/08/2001CA2383353A1 A method for increasing the yield of 2,6-nda
03/08/2001CA2383346A1 Purification of aromatic diacids
03/08/2001CA2383337A1 An integrated process for the production of 2,6-naphthalene dicarboxylic acid
03/08/2001CA2383312A1 Process for the recovery of disproportionation reaction products
03/08/2001CA2383246A1 A process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid
03/08/2001CA2383239A1 Disproportionation catalyst
03/08/2001CA2383232A1 A process for separation of crude naphthalene dicarboxylic acid using reverse osmosis
03/08/2001CA2383229A1 Closely linking a nda process with a pen process
03/07/2001CN1062852C Process for recovery of Co- and Mn-catalyst from production of phthalic acid
02/2001
02/28/2001EP1077920A1 New compounds, their preparation and use
02/28/2001EP1077919A1 New compounds, their preparation and use
02/28/2001CN1285341A Palladium-carbon catalyst on-line regeneration method for terephthalic acid production apparatus
02/27/2001US6194607 Oxidizing, with feed gas comprising oxygen and carbon dioxide, alkyl aromatic compound or partially oxidized intermediate using catalyst comprising cobalt, manganese, and bromine, alkali metal or alkaline earth metal dissolved in solvent
02/27/2001US6194601 5,6-dihydronaphthalenyl derivatives having retinoid-like activity
02/21/2001EP0862604B1 Use of organic compounds present in the liquid-crystalline phase discotic in a plastic-columnar manner for conveying electrical charges
02/21/2001CN1284940A Method and apparatus for recovering terephthalic acid
02/21/2001CN1284939A Process for making certain benzoic acid compounds
02/14/2001EP1075458A1 Process for purifying isophthalic acid by crystallization
02/14/2001CN1283607A Rare-earth phenyldiformate, and its preparing process and application
02/14/2001CN1283521A Catalyst compsns, its prepn, process and process of purifying terephthalic acid
02/13/2001US6187952 Reacting 4-fluorobenzaldehyde with a chlorinating agent in the presence of a free-radical initiator, then reacting the reaction product 4-fluorobenzoyl chloride in the presence of a chlorination catalyst
02/13/2001CA2147808C Acetylenic biaromatic compounds containing an adamantyl group; pharmaceutical and cosmetic compositions containing them and uses thereof
02/08/2001WO2001009076A2 Retinoids for the treatment of emphysema
02/08/2001WO2001009075A1 Photocurable composition containing iodonium salt compound
02/08/2001WO2001008798A1 Catalytic composition, method for manufacturing thereof and method for the purification of terephthalic acid
02/07/2001EP0874797B1 Processes employing indicator ligands
02/07/2001CN1282739A Intermediate used in preparing oxdiazine and its manufacturing method
02/06/2001CA2147807C Bicyclic-aromatic compounds; pharmaceutical and cosmetic compositions containing them and uses
01/2001
01/31/2001CN1282314A Method to produce aromatic carboxylic acids
01/30/2001US6180674 Therapy for skin disorders
01/30/2001CA2141789C Process for preparing phenylterephthalic acid
01/25/2001WO2000064555A3 Solvent extraction process
01/24/2001EP1070136A1 Strain of the microorganism penicillium oxalicum var. armeniaca and its application
01/24/2001EP1070040A1 Oxidation process using periodic acid
01/24/2001EP1070039A1 Oxidation process using tempo
01/17/2001CN1060759C Method for synthesizing pyruvate by lactate catalyzing
01/16/2001US6175038 Catalyzing the oxidation in presence of a catalyst comprising cobalt, manganese, and bromine, and another transition metal or a lanthanide metal to prevent a decrease in reactivity and the oxidation, precipitation of a catalyst
01/10/2001CN1279234A process for purifying 3.5-dimethyl benzoic acid
01/09/2001US6172112 Anticarcinogenic and antitumor agents
01/03/2001EP0832057B1 Diaromatic propynyl or dienyl compounds
01/03/2001EP0802896B1 Method for purifying crude naphthalenedicarboxylic acid
01/03/2001CN1060176C Organometallic fluorenyl compounds, preparation and use
01/02/2001US6168776 Alkyl, alkenyl and alkynyl Chrysamine G derivatives for the antemortem diagnosis of Alzheimer's disease and in vivo imaging and prevention of amyloid deposition
01/02/2001CA2007530C Preparation of 2-chloroterephthaloyl chloride
12/2000
12/27/2000EP1062196A1 Improved process for producing pure carboxylic acids
12/27/2000EP0751768B1 Anti-viral and anti-cancer agent
12/27/2000CN1278239A Method and apparatus for preparing purified terephthalic acid
12/27/2000CN1059901C Preparation of arthropodicidal oxadiazines
12/27/2000CN1059892C Comprehensive utilization of terephthalic acid residual liquid
12/21/2000WO2000076951A1 Method for producing 2-halo-6-nitrobenzoic acids
12/21/2000DE19927408A1 Verfahren zur Herstellung von 2-Halo-6-nitrobenzoesäuren Nitrobenzoic 2-halo-6-process for the preparation of
12/20/2000CN1277184A Production process of aromatic binary carboxylic acid
12/19/2000US6162948 Heating a mixture of naphthalenedicarboxylic acid and/or ester, alcohol and water to dissolve in a solution of predetermined alcohol concentration; hydrolysis by lowering the alcohol concentration; precipitates; glycol slurry flow
12/19/2000US6162936 Organometallic fluorenyl compounds, preparation, and use
12/13/2000CN1276365A Method for preparing purified p-phthalic acid
12/13/2000CN1059459C Liquid crystal compound contg.cyclohexyl and perfluorobenzene ring and preparing process thereof
12/12/2000US6160171 Trifluoro-substituted benzoic acid, esters thereof, and process for producing the same
12/12/2000US6159973 Aromatic amides, their preparation process, the compositions containing them and their use as pesticides
12/06/2000CN1059131C Catalyst for producing benzoic anhydride
12/05/2000US6156788 Polycyclic aromatic compounds and pharmaceutical/cosmetic compositions comprised thereof
11/2000
11/21/2000US6150413 Treatment of dermatological, rheumatic, respiratory, cardiovascular, bone and ophthalmological disorders, as well as mammalian skin and hair conditions; 4-(4-(biphenyl-2-yl)but-3-en-1-ynyl)benzoic acid, for example
11/21/2000US6149836 Nondiscoloring, storage stable liquid melt of an aliphatic or cycloaliphatic dicarboxylic acid of 6 to 44 carbon atoms in a lactam of an aliphatic alpha, omega-aminocarboxylic acid having 6 to 16 carbon atoms
11/14/2000US6147255 Topical and systemic treatment of dermatological complaints associated with keratinization disorder which has effect on differentiation and on proliferation
11/09/2000WO2000066529A1 A production method of aromatic carboxylic acids
11/07/2000US6143926 Process for producing pure terephthalic acid with improved recovery of precursors, solvent and methyl acetate
11/07/2000US6143770 Mixtures of tocotrienol and nicotinic acid
11/02/2000WO2000064555A2 Solvent extraction process
11/02/2000EP1048647A1 N-Chlorocarbonyl-carbamate derivative and its use in the preparation of arthropodicidal oxadiazines
11/02/2000EP1047483A1 Separation process
11/02/2000CA2370894A1 Solvent extraction process
11/01/2000CN1272103A Recovery of 2,6-naphthalene dicarboxylic acid from polyesters
10/2000
10/31/2000US6140534 Filtration, crystallization, separation
10/31/2000CA2199703C Perfluorinated polymide, perfluorinated poly (amic acid), starting compounds therefor, and methods for preparing them
10/31/2000CA2193910C Oxygen enrichment process for air based gas phase oxidations which use metal oxide redox catalysts
10/26/2000WO2000063164A1 Method for carrying out the side chain bromination of 4-methyl biphenyl derivatives substituted at the 2'-position
10/26/2000WO2000063146A1 Process for the production and purification of aromatic acids
10/25/2000EP1045824A1 Method to produce aromatic carboxylic acids
10/25/2000EP1045823A1 Process for making certain benzoic acid compounds
10/19/2000DE19917025A1 Rapid preparation of 4-bromomethyl-biphenyl derivatives from 4-methyl compounds, using N-bromo-imide or -amide in carboxylic acid ester solvent, used as pharmaceutical intermediates
10/17/2000US6133470 Producing terephthalic acid and/or dimethyl terephthalate; toluene disproportionation conditions with crystalline molecular sieve catalyst to produce an intermediate product, which is oxidized without need for purification
10/17/2000US6133259 Diagnosis of alzheimer's disease
10/17/2000US6132641 Composition and support material comprising poly(9,9'-spiro-bisfluorenes)
10/12/2000WO2000059861A1 Selective retinoic acid analogs
10/11/2000EP1042313A1 Benzopyran and benzothiopyran derivatives having retinoid antagonist like activity
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