| Patents for C07C 37 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom of a six-membered aromatic ring (10,407) |
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| 05/03/2001 | DE19951373A1 Verfahren zur Entfernung von Verunreinigungen aus Phenol mittels zumindest eines sauren Katalysators A process for removing impurities from phenol by means of at least one acidic catalyst |
| 05/02/2001 | EP1095927A1 Process for the removal of impurities from phenol by treatment with at least one acid catalyst |
| 05/02/2001 | CN1293179A New method of preparing Latif alcohol derivative |
| 05/01/2001 | US6225513 By oxidation with catalytic cleavage of cumene hydroperoxide; concentrated to cumene content, mixture is catalytically cleaved producing dicumyl peroxide and dimethylphenylcarbinol in a tubular reactor |
| 05/01/2001 | US6225512 Isomerization of dimers or oligomers of isopropenylphenol in the presence of an acid catalyst(boron trifluoride), base neutralization, then recrystallization to isolate 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol |
| 05/01/2001 | CA2033021C A process and a catalyst composition of alkylating benzene or substituted benzene or transalkylating alkylated benzene |
| 04/26/2001 | WO2001028666A1 Process for removing and recovering of phenolic compounds from aqueous fluids |
| 04/26/2001 | DE19950952A1 Preparation of phenol and acetone comprises the homogeneous acid catalyzed cleavage of cumyl hydroperoxide in a microreactor with microchannels |
| 04/26/2001 | CA2388189A1 Process for removing and recovering of phenolic compounds from aqueous fluids |
| 04/25/2001 | EP1066233A4 Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
| 04/19/2001 | WO2001027059A1 Process for cleaning bisphenol pre-reactor |
| 04/18/2001 | CA2323311A1 New process for the preparation of retiferol derivatives |
| 04/17/2001 | US6218584 Brominating bisphenol a; discoloration inhibition with hydrogen bromide; precipitation; high yield |
| 04/17/2001 | US6218430 Vitamin D3 mimics |
| 04/17/2001 | US6217769 Separating agent for optical isomers and process for producing the same |
| 04/12/2001 | US20010000260 Adding water and a diluent to form a separable crude phenolic bottoms stream having a combined density lower than the density of the bottoms; separating out a hydrocarbon phase and a salt-containing aqueous phase; phenols from peroxides |
| 04/11/2001 | CN1290683A Use of bisphenol in preparing polycarbonic ester and opoxy resin |
| 04/11/2001 | CN1290682A Method for preparing phenol, methyl-ethyl ketones and acetone |
| 04/11/2001 | CN1290681A Method for preparing phenol, acetone and methyl-ethyl ketones |
| 04/11/2001 | CN1290680A Method for preparing phenol |
| 04/11/2001 | CN1064343C Process for producing o-isopropyl phenol |
| 04/11/2001 | CN1064342C Process for producing o-secondary butyl phenol |
| 04/05/2001 | DE19946888A1 Verfahren zur Herstellung von Phenol, Aceton und Methylethylketon A process for producing phenol, acetone and methyl ethyl ketone |
| 04/05/2001 | DE19946887A1 Verfahren zur Herstellung von Phenol, Methylethylketon und Aceton A process for producing phenol, methyl ethyl ketone and acetone, |
| 04/05/2001 | DE19946886A1 Verfahren zur Herstellung von Phenol A process for the production of phenol |
| 04/04/2001 | EP1088809A1 Process for the preparation of phenol, acetone and methylethylketone |
| 04/04/2001 | EP1088808A1 Process for the preparation of phenol, acetone and cyclohexanone |
| 04/04/2001 | EP1088807A1 Process for the preparation of phenol, methylethylketone and acetone |
| 04/04/2001 | EP0944567B1 Improved method for producing phenol and acetone from cumol |
| 04/04/2001 | EP0927147A4 Alkylation of organic aromatic compounds using beta zeolite catalyst |
| 04/04/2001 | CN1289750A Process for industrially preparing very-high-purity 1-naphthol |
| 04/04/2001 | CN1289749A Process for synthesizing catechol |
| 04/03/2001 | US6211417 Process for preparing bis-(4-hydroxyaryl) alkanes |
| 04/03/2001 | CA2180630C Process for the production of phenol |
| 03/28/2001 | EP1086069A1 A process for the preparation of tetrabromobisphenol-a |
| 03/28/2001 | CN1289263A Separation of substance mixtures using polysaccharides |
| 03/28/2001 | CN1288881A Tar-free catalytic oxidation of arene utilizing coupling reaction |
| 03/27/2001 | US6207866 Method for producing diarylmethane or its derivatives |
| 03/21/2001 | CN1063423C Process for the production of high purity and ultrapure bisphenol-A |
| 03/20/2001 | US6204424 Highly acidic mesoporous synergistic solid catalyst and its applications |
| 03/20/2001 | US6203612 Process for cleaning bisphenol crystallizer |
| 03/15/2001 | WO2001017930A1 Symmetric bis-indenyl ligands and process for their preparation |
| 03/14/2001 | EP1082284A1 Condensation method for a carbonyl compound on an aromatic derivative in a basic medium |
| 03/14/2001 | EP0900185B1 Vitamin d analogs and methods of preparing these compounds |
| 03/14/2001 | CN1287551A Process for producing bisphenol A |
| 03/14/2001 | CN1287550A High selective method of phenol and acetone production |
| 03/13/2001 | US6201157 Method for production of phenol and acetone by decomposition of cumene hydroperoxide |
| 03/08/2001 | WO2001016064A1 Diolefin/hydroxyaryl condensates and catalyst therefor |
| 03/08/2001 | WO2001016031A2 Method of producing hydroxyl radicals for chemical reactions |
| 03/08/2001 | CA2383513A1 Method of producing hydroxyl radicals for chemical reactions |
| 03/07/2001 | EP1080066A1 Bioreductive cytotoxic agents |
| 03/07/2001 | EP0927148B1 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation |
| 03/06/2001 | US6197916 Method for preparing bisphenol A |
| 02/28/2001 | EP1078669A1 Process and crystallizer for purifying materials or mixtures thereof |
| 02/22/2001 | WO2001012322A1 Perfluorosulfonylmethide compounds; use thereof for carbon-carbon bond formation |
| 02/20/2001 | US6191318 Process for preparing hydroxylated aromatics by hydrogen and oxygen |
| 02/20/2001 | US6191316 Removing phenol from mother liquor by distillation, combining the bottoms thus obtained with a basic catalyst and continuously decomposing the combination in a reactive rectification stage into phenol and isoalkenylphenol |
| 02/20/2001 | CA2011506C Condensate of a polyhydric phenol with an aldehyde, the preparation and use thereof |
| 02/15/2001 | WO2001010805A1 Bis(4-hydroxy-3-perfluoroalkylphenyl)fluoroalkane derivatives and process for the preparation thereof |
| 02/14/2001 | CN1283647A Polyorganosiloxane simultaneously contg sulfoacid group and alkyl group with mercapto |
| 02/14/2001 | CN1061969C Method of technical cument hydroperoxide acidic cleavage to phenol acetone and alpha-methylstyrene |
| 02/14/2001 | CN1061904C Method to treat ion-exchanger catalyst for process of bisphenol-A synthesis |
| 02/13/2001 | US6187964 Forming an aryl formate and aromatic carboxylic acid by oxidation an aromatic aldehyde with oxygen, separation a carboxylic acid, aryl formate, unreacted aldehyde mixture and decomposition of formate to phenol |
| 02/08/2001 | WO2001009071A1 Preparation of 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes |
| 02/08/2001 | WO2001009070A1 Process for the preparation of phenol and acetone |
| 02/08/2001 | WO2001008796A1 Method for producing catalysts by acid activation |
| 02/07/2001 | CN1283171A Method for producing phenols, aldehydes, esters and/or ketones from lignin and/or lignin sulphonic acid |
| 02/07/2001 | CN1283164A Method for hydrofenating anthraquinone compound |
| 02/07/2001 | CN1061567C Modified ion exchange resins and use thereof |
| 02/06/2001 | US6184421 Selective oxidation, to a carboxy group, of the group in the 2 position with respect to the hydroxyl groups of a mixture of phenols having formyl and/or hydroxymethyl groups in positions 2 or 4; preparing vanillin and ethyl vanillin |
| 02/06/2001 | US6184367 Process for the production of 4-aryl-2 butanols from Taxus wallichiana |
| 02/01/2001 | DE19935914A1 Verfahren zur Herstellung von Katalysatoren durch Säureaktivierung A method for preparing catalysts by acid activation |
| 01/31/2001 | EP1071643A1 Method for producing bis(4-hydroxyaryl)alkanes |
| 01/31/2001 | EP1071499A1 Separation of substance mixtures using polysaccharides |
| 01/31/2001 | CN1282312A Method for producing bis-(4-hydroxyaryl) alkanes |
| 01/31/2001 | CN1281843A Improvement of 2-naphthol synthesis process |
| 01/30/2001 | US6180836 Preparation of phenol via one-step hydroxylation of benzene catalyzed by copper-containing molecular sieve |
| 01/30/2001 | US6180834 Process for the extraction of the salts contained in the neutralized separated product obtained in the preparation of phenol by the oxidation of cumene |
| 01/23/2001 | US6177538 By reacting an alkali phenolate with tetrabutyl ammonium salts in an aqueous phase and subsequently precipitating the adduct by adding phenol. |
| 01/17/2001 | EP1069099A1 Process for the alkylation of aromatic compounds in gas phase |
| 01/11/2001 | WO2001002331A1 Method for cleavage of bisphenol |
| 01/10/2001 | EP1066233A1 Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
| 01/10/2001 | EP0934240B1 Production of 6-bromo-2-naphthol and derivatives |
| 01/10/2001 | EP0925270B1 Production of 6-bromo-2-naphthol and derivatives |
| 01/10/2001 | CN1279231A Process for refining coarse phenol containing sulfur |
| 01/09/2001 | US6172225 Herbicides |
| 01/03/2001 | EP0862544B1 Process for purifying a 2,6-dialkylphenol |
| 01/02/2001 | US6169216 Contacting cumene hydroperoxide with a solid-acid catalyst comprising sulfated transition metal oxide to produce phenol and acetone |
| 01/02/2001 | US6169215 Contacting cumene hydroperoxide with a solid acid-catalyst produced by calcining a source of grop 4b metal oxide and a source of an oxyanion of group 6b metal |
| 12/27/2000 | EP1061816A1 Products containing polyphenol(s) and l-arginine to stimulate nitric oxide production |
| 12/27/2000 | CN1277954A Method for separating reseveratrol from resveratrol glucoside and application thereof |
| 12/26/2000 | US6166268 Selective oxidation and the synthesis of hydroxyl-containing aromatic compounds |
| 12/21/2000 | WO2000047031A3 Chemical partitioning agents and methods of using same |
| 12/20/2000 | EP1061061A1 Process for the production of alpha,alpha'-bis (4-p-hydroxyphenyl)-1,3-diisopropylbenzene |
| 12/20/2000 | EP1060160A2 Disubstituted lavendustin a analogs and pharmaceutical compositions comprising the analogs |
| 12/20/2000 | CN1277209A Microwave process of extracting polysaccharides and polyphenols from tea |
| 12/19/2000 | US6162953 Feeding bisphenol a to a mixture of brominating agent and an alcohol solvent containing from 30-85 wt % by weight water; during the bisphenol a feed and without a reaction mass cook time after the bisphenol a feed is completed, precipitating |
| 12/19/2000 | US6162931 Fluorinated xanthene derivatives |
| 12/14/2000 | WO2000050371A3 Method and composition for hydroxylation of aromatic substrates |
| 12/14/2000 | WO2000045769A3 Process for extracting polyphenolic antioxidants from purine-containing plants |