Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
10/1993
10/05/1993US5250724 Process for the preparation of trimellitic acid
10/05/1993US5250652 Polyamideester copolymer
10/04/1993CA2083251A1 Process for selective hydrodefluorination
09/1993
09/29/1993EP0562105A1 Process for preparing 2,6-naphthalenedicarboxylic acid----------
09/22/1993CN1022183C Process for preparing quinolone carboxylic acid intermediates
09/22/1993CN1022182C Process for producing high purity terephthalic acids
09/08/1993CN1075951A Preparing benzene anhydride by low pressure gasifying naphthalene feed method
09/07/1993US5243067 Oxidative coupling
08/1993
08/31/1993US5241094 Basic calcium aluminum hydroxide dicarboxylates, a process for their production and their use
08/25/1993EP0556806A1 Process for producing biphenyltetracarboxylic dianhydride
08/18/1993CN1075318A Benzopyran and related LTB4 antagonists
08/18/1993CN1021814C Method for reactivating group 8 noble metal catalyst for use in purification of crude terephthalic acid
08/17/1993US5237092 Process for concurrently producing aryl formate and aromatic carboxylic acid
08/10/1993US5235076 Anticarcinogenic agents
08/10/1993US5235070 Suppression of dust from solid aromatic anhydrides
08/05/1993WO1993015067A1 Benzopyran and related ltb4 antagonists
08/04/1993EP0554134A1 Process for preparing carboxylic acid halogenides and a reaction agent therefor
08/04/1993EP0553890A1 Diphenyl heteroalkyl derivatives, their preparation, as well as medicinal and cosmetic preparations prepared therefrom
08/03/1993US5233018 Heat resistance and low optical transmission loss in the near-infrared region; integrated circuits
07/1993
07/28/1993EP0552773A1 Coating for substrates surfaces
07/27/1993US5231223 Reacting an aryldiazonium salt with olefin in presence of palladium catalyst
07/21/1993EP0551632A2 Process for the preparation of halogenoanthranilic acid
07/20/1993US5229424 Insecticides, acaricides
07/20/1993CA1320490C Anti-inflammatory agents
07/14/1993EP0550979A2 Process for the production of therephthalic acid
07/14/1993CN1074146A Preparation of benzene anhydride catalyst
07/13/1993CA1320148C Method for recovering crystals from crystal-containing slurry
06/1993
06/30/1993EP0549531A1 Process for preparing acid anhydrides
06/30/1993EP0549021A2 Flame retardant compounds
06/30/1993CN1021439C Syntheses of 3,3', 4,4'-biphenyltetracarboxylic acid and derivatives thereof
06/24/1993WO1993012065A1 Process for preparing purified 2,6-naphthalenedicarboxylic acid
06/23/1993CN1073357A Tocotrienols and tocotrienol-like compounds and methods for their use
06/23/1993CN1021325C Process for preparing ethynylphenyl-containing retinoic acid derivatives
06/22/1993US5221760 Intermediates, leukotriene antagonists
06/21/1993CA2085823A1 Process for the preparation of acid anhydrides
06/20/1993CA2104283A1 Process for preparing purified 2,6-naphthalenedicarboxylic acid
06/16/1993CN1021221C Process for production of aromatic carboxylic acids
06/15/1993US5220048 Substituted benzocyclobutenes, a process for their preparation and their use
06/10/1993WO1993009077A3 Process for the preparation of fluorinated benzoic acids
06/09/1993EP0406310B1 Process for the carbonylation of iodoaromatic compounds
06/09/1993CN1072925A Production of p-phthaloyl chloride, m-phthaloyl chloride and acetophenone by united body method
06/01/1993US5216173 Curing agents for epoxy resins; polyimides
05/1993
05/27/1993WO1993009777A1 Tocotrienols and tocotrienol-like compounds and methods for their use
05/27/1993CA2124086A1 Tocotrienols and tocotrienol-like compounds and methods for their use
05/26/1993EP0543417A1 Tocotrienols and tocotrienol-like compounds and methods for their use
05/26/1993CN1020894C Purification of crude terephthalic acid
05/19/1993EP0541782A1 Process for preparing purified dimethyl naphthalenedicarboxylate.
05/18/1993US5212303 Benzonaphthalene derivatives, a process for their preparation and their use in therapeutic and cosmetic compositions
05/18/1993US5212301 Fluorination
05/18/1993CA1317973C Tetralin derivatives, their preparation and their use
05/18/1993CA1317966C Preparation of substituted benzotrichlorides
05/13/1993WO1993009077A2 Process for the preparation of fluorinated benzoic acids
05/11/1993US5210352 From fluoranthene
05/11/1993US5210292 Purification of waste from fabric treatment process
05/05/1993EP0540311A1 Polysubstituted fullerenes and their preparation
04/1993
04/29/1993WO1993008156A1 Salts of polybenzazole monomers and their use
04/29/1993WO1993008151A1 Process for preparing 2,6-naphthalenedicarboxylic acid__________
04/29/1993CA2120765A1 Salts of polybenzazole monomers and their use
04/29/1993CA2079957A1 Polysubstituted fullerenes and their preparation
04/28/1993EP0539243A2 Process for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereof
04/27/1993CA1316939C Process for exchanging dispersing medium of terephthalic acid slurry
04/21/1993EP0537540A1 Process for the radical chlorination or bromination of methyl substituted aromatics
04/13/1993US5202471 Alkyl, alkoxy and thioalkoxy substituted diphenyl acetylenes having retinoid like activity
04/13/1993US5202469 Partially fluorinated dicarboxylic acid and the acid chloride thereof, and a process for their preparation
04/13/1993US5202356 Insecticides, miticides
04/12/1993CA2080204A1 Process for the free-radical chlorination or bromination of methyl aromatic compounds
04/06/1993US5200556 Process for the preparation of 3,4,6-trifluorophthalic acid and the anhydride thereof
04/06/1993US5200548 2,4,5-Trihalogeno- and 2,3,4,5-tetrahalogenobenzene derivatives
04/06/1993CA1315686C Pharmaceutical compositions containing at least one naphtylaromatic compound as an active ingredient
04/06/1993CA1315674C Pharmaceutical compositions containing at least one bicyclic aromatic derivative as an active ingredient
03/1993
03/30/1993US5198567 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them
03/23/1993US5196593 Halogenated trifluoromethylbenzenes
03/23/1993US5196590 Method of making 2,4,5-trihalobenzoic acid
03/23/1993US5196577 Radioactive
03/17/1993EP0525066A4 Preparation of 3,4,6-trifluorophthalic acid
03/02/1993US5191132 Fluorene Derivatives
02/1993
02/23/1993US5189209 Liqiud phase oxidation of m-dialkyl benzene with oxygen in an acetic acid solvent; contacting with a noble metal catalyst; separation; filtration
02/23/1993CA1313883C Process for the synthesis of 3-chloro-2,4,5-trifluorobenzoic acid
02/17/1993EP0527642A1 Process for simultaneously producing lactone and aromatic carboxylic acid
02/17/1993EP0527508A2 Arylcyclobutene monomers and polymers
02/17/1993EP0527165A1 Use of metal soaps of polycarboxylic acids or polycarboxylic acid partial esters as processing aids for polyesters
02/10/1993CN1068829A Organometallic fluorenyl compounds, preparation, and use
02/04/1993WO1993003113A1 Liquid-crystal compounds
02/04/1993CA2093212A1 Liquid-crystalline compounds
02/03/1993EP0525140A1 Liquid-crystal compounds
02/03/1993EP0525066A1 Preparation of 3,4,6-trifluorophthalic acid.
02/02/1993US5183933 Continuous liquid phase catalytic oxidation of 2,6-dimethylnaphthalene
02/02/1993US5183889 Benzonaphtahalene derivatives, a process for their preparation and their use in therapeutic and cosmetic compositions
01/1993
01/27/1993EP0524624A2 Organometallic fluorenyl compounds, preparation, and use
01/21/1993DE4123322A1 2-Chloro-3,4,5-tri;fluoro-benzoic acid and 5-chloro isomer - obtd. by reaction of 2,3,4-tri:fluoro-chloro-benzene with mono: or di:chloro-acetyl chloride, followed by reaction with sodium hypochlorite
01/19/1993US5180849 Process for producing purified terephthalic acid
01/19/1993CA1312879C Process for the preparation of a basic salt, salt thus prepared and lubricating oil compositions containing such a salt
01/12/1993US5179230 Decyclization, hydrolysis of n-substituted tetrafluorothphalimide
01/12/1993CA1312614C Process for the preparation of carboxylic acid chlorides
01/05/1993US5177258 Method of production of biaryl derivatives
01/05/1993US5177248 Process of forming polysubstituted fullerenes
01/05/1993CA1312340C Process for the preparation of 2,2- bisphenylhexafluoropropane
12/1992
12/30/1992EP0520762A2 Process for concurrently producing aryl formate and aromatic carboxylic acid
12/29/1992US5175355 Improved process for recovery of purified terephthalic acid
12/29/1992US5175353 2-(2'-aminoethoxy)-ethanol salt of dicamba
1 ... 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 ... 66