C07C 37 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom of a six-membered aromatic ring

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)
12/2002
12/04/2002	EP1262471A2 Fluorine-containing bisphenols, their preparation, intermediates towards their preparation, and their use
12/04/2002	EP0993429B1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
12/04/2002	EP0929507B1 Process for the hydroxylation of benzene
12/03/2002	US6489519 Treating crude phenols obtained from thermal work-up of phenol-containing streams with acid catalyst to convert impurities into compounds which can be separated from phenol, separating, treating separated phenol again with acid catalyst
12/03/2002	US6489518 Process for reducing the salt content of fractions comprising high boilers obtained in the preparation of phenol from cumene, by extraction
12/03/2002	US6489517 Chlorinating dialkylphenol, oxidatively coupling product in polar aprotic solvent to produce dichlorotetraalkylbiphenol, dechlorinating to produce tetraalkylbiphenol, brominating or iodinating if desired
11/2002
11/28/2002	US20020177740 Catalyst promotor for the manufacture of polyphenols
11/27/2002	CN1382113A Diolefin/hydroxyaryl condensates and catalyst therefor
11/26/2002	US6486365 Production and purification of phenol: hydroxyacetone removal by hydrotalcite
11/26/2002	US6486364 Prepared from acidic resins such as sulfonated polystyrene by neutralization of portion of acidic functional groups present with amine such as pyridine; catalyst selectivity
11/26/2002	US6486363 Process for the manufacture of bis(4-hydroxyaryl)alkanes
11/26/2002	US6486339 Using zeolite
11/26/2002	US6486222 From phenol and acetone
11/21/2002	WO2002092546A1 Method for the preparation of cumylphenol
11/19/2002	US6482478 Fluorinated derivatives of phenanthrene and the utilization thereof in liquid crystal mixtures
11/14/2002	WO2002090303A1 Process for extracting phenol by optimization of alkali usage
11/14/2002	US20020169222 Method for reclaiming waste cured resin
11/14/2002	US20020169071 Forming, in the absence of the ionic liquid, a functionalised support material containing, a first compound bonded to the support and having a free anion or cation group which is reacted with ionic liquid containing other anion or cation
11/13/2002	EP1256561A1 Process for decreasing by extraction the salt content of fractions comprising high boiling compounds which are obtained in the preparation of phenol from cumene
11/12/2002	US6479711 Process for producing aromatic hydroxy compound
11/12/2002	US6479081 Sulphite water (h2o+so2) is used as solvent for extraction; raw tannin fraction is purified by selectively adsorbing the tannin polyphenol compounds on resin and by subsequent filtering.
11/06/2002	EP1169284A4 Hydroperoxide decomposition process
11/06/2002	CN1377935A Hinered phenols antioxidant composition
11/06/2002	CN1093772C Upflow fixed bed reactor with packing elements
11/05/2002	US6476277 Oxidizing aromatics with dintrogen monoxide in the gas phase in the presence of nanocrystalline zeolites
11/05/2002	US6476273 Method for producing phosphonium phenolates
11/05/2002	US6476250 Optically active fluorinated binaphthol derivative
11/05/2002	US6476179 Process for producing raw polycarbonate resin material and producing polycarbonate resin
11/05/2002	US6475465 Crystal structure
10/2002
10/31/2002	WO2002086037A1 Method for purifying long-chain alkyl phenols and the mannich adducts thereof
10/31/2002	WO2002085830A1 Process for producing bisphenol a
10/31/2002	WO2002085829A1 Process for production of dimers of aromatic monohydroxyl compounds
10/31/2002	WO2002085828A1 Regeneration of catalysts used in the manufacture of bisphenols
10/31/2002	US20020157939 Subjecting a polyhydric alcohol compound having protected hydroxy group(s) to microwave irradiation in presence of basic compound or acid to deprotect the protecting groups of hydroxy group of polyhydric alcohol compound
10/30/2002	EP1253129A1 High purity 9,9-bis-(4-hydroxyphenyl)-fluorene and method for the preparation and purification thereof
10/30/2002	CN1376728A Recovery method for waste solidified resin
10/24/2002	WO2002083611A1 Catalyst promoter for the manufacture of polyphenols
10/24/2002	DE10119738A1 Purification of an alkyl phenol and corresponding Mannich adducts comprises intimately contacting the phenol derivative with an extraction agent having a polarity
10/23/2002	CN1375484A Method for preparing 2,2'-di(4-hydroxy-cyclohexyl) propane
10/23/2002	CN1093119C Process for producing 1,3-di-(2-hydroperoxy-2-propyl) benzene
10/23/2002	CN1093111C Process for preparation of 4-hydroxybiphenyl
10/17/2002	WO2002081047A1 Method for eliminating oxygenated organic molecules that are present in an organic effluent using alumina agglomerates
10/16/2002	EP1248765A1 Lead halophenoxides and carbonylation catalyst and method for preparing and employing them
10/16/2002	EP1248760A1 An eco-friendly method of preparation of high purity tetrabromobisphenol-a
10/16/2002	EP1248759A1 Method for production of phenol and acetone by decomposition of cumene hydroperoxide
10/16/2002	CN1092629C Process for producing 3,5-dimethylphenol
10/16/2002	CN1092628C Production of bisphenol by using modified ion exchange resin with special porous structure as catalyst
10/15/2002	US6465697 Reactin a phenolic compound reactant, a carbonyl compound reactant, and a catalyst promoter comprising a dithioketal compound in the presence of an acid catalyst.
10/15/2002	US6464954 Method for hydrogenating an anthraquinone compound
10/15/2002	US6464838 Process for the recovery of compounds present in the heavy products after their preparation
10/10/2002	WO2002079130A1 A process for preparing alkylated dihydroxybenzene
10/10/2002	US20020147241 Combination ion exchange resin bed for the synthesis of bisphenol a
10/09/2002	CN1092177C Method for preparation of p-fuchsone
10/09/2002	CN1092176C Low metal ion contg. 4,4'-[1-[4-[1-(4-hydroxyphenyl)-1-methylethyl]phenyl]-ethylidene]bisphenol and photoresist compositions therefrom
10/08/2002	CA2054105C A method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom
10/03/2002	WO2000043334A3 Method and installation for separating and purifying diphenols in the phenol and phenol derivatives industry
10/03/2002	WO1998011042A3 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation
10/03/2002	US20020143134 Process for the neutralization of residual acid species in crude dihydric phenols
10/03/2002	US20020142923 Hindered phenolic antioxidant compositions
10/03/2002	US20020142409 Biocatalytic synthesis of quinic acid and conversion to hydroquinone
10/03/2002	EP1144347A3 Method and installation for separating and purifying diphenols in the phenol and phenol derivatives industry
10/03/2002	EP0927148A3 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation
10/02/2002	EP1245534A2 Hydrogenation of a working solution in a hydrogen peroxide production process
10/02/2002	EP1244607A1 Fluidised bisphenol dust
10/02/2002	EP1000004B1 Method for producing tetrabutyl ammonium phenolate diphenol adduct
10/02/2002	EP0994836B1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
10/02/2002	DE10111889A1 Production of phenol and acetone containing low levels of cresol, comprises heating the acid cleavage product to a specified temperature upto 15 minutes
10/02/2002	CN1371897A Process for synthesizing orthophenylphenol from cyclohexanone
10/01/2002	US6459004 Yielding a product containing high-purity isopropenylphenol and phenol is disclosed, including (1) a cleavage step of supplying the mixture containing bisphenols together with chroman derivatives and flavan derivatives formed as
09/2002
09/26/2002	DE10110313A1 Purification of cresylic acid mixtures for production of phenol compounds involves extractive distillation of pre-separated high- and low-boiling fractions followed by stripping and recycling of solvent
09/25/2002	EP1243634A1 Hindered phenolic antioxidant compositions
09/25/2002	EP1243333A2 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6
09/25/2002	EP1242350A1 Bisphenol phenol adducts
09/25/2002	EP1242349A1 Bis(4-hydroxyaryl)alkanes
09/25/2002	EP1242348A1 Production of phenol using reactive distillation
09/25/2002	EP1242347A1 Method for producing phosphonium phenolates
09/25/2002	EP1056682B1 Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide
09/25/2002	CN1370766A Green extraction process of high-purity tea polyphenol
09/24/2002	US6455464 Preparation and use of non-chrome catalysts for Cu/Cr catalyst applications
09/19/2002	WO2002072517A1 Purification of dihydroxydiphenyl
09/19/2002	WO2002072516A1 Method for producing bisphenol a
09/19/2002	WO2002072515A1 Method for producing bisphenol a
09/19/2002	DE10111289A1 Reinigung von Dihydroxydiphenyl Cleaning of dihydroxybiphenyl
09/18/2002	EP1240941A2 Copper-aluminum mixed oxide catalyst, its preparation and use thereof
09/18/2002	EP1240124A1 Stable bisphenolic compositions
09/18/2002	EP1239958A1 Catalyst resins
09/17/2002	US6451957 (Hydroxyalkyl)phenols, method for their preparation, and uses thereof
09/12/2002	WO2002070446A1 Bisphenol compound composition with excellent thermal stability
09/12/2002	WO2002070445A1 Process for the neutralization of residual acid species in crude dihydric phenols
09/12/2002	WO2002070444A1 Process for producing bisphenol a
09/12/2002	WO2002070443A1 Process for producing bisphenol a
09/12/2002	WO2002070442A1 Process for preparing phenols
09/12/2002	US20020128524 Purification of dihydroxydiphenyl
09/12/2002	US20020128432 Method for making 2,6-xylenol
09/12/2002	US20020128431 Dry-blending filler with magnesium reagent yielding magnesium oxide upon calcination; alkylation catalysts; disinfectants and wood preservatives
09/12/2002	DE10110392A1 Verfahren zur Herstellung von Phenolen Process for the preparation of phenols
09/11/2002	EP1237834A1 Bisphenol production
09/11/2002	EP0993430B1 Method for preparing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
09/11/2002	CN1090603C Process for extracting resveratrol from Chinese medicine giant knotweed root
09/10/2002	US6448453 Reacting phenol and alpha-methylstyrene in the presence of an acid catalyst and an alkylbenzene. the method provides an inexpensive, selective process to cumylphenol.

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