Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › 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)
06/2003
06/05/2003CA2468112A1 3-alkylated-5,5',6,6',7,7',8,8'-octahydro-2,2'-binaphthols and 3,3'-dialkylated-5,5',6,6',7,7',8,8'-octahydro-2,2'-binaphthols and processes for making them
06/05/2003CA2468109A1 Process for preparing 3,3',6,6'-tetraalkyl-2,2'-biphenols and 3,3',6,6'-tetraalkyl-5,5'-dihalo-2,2'-biphenols
06/05/2003CA2468104A1 Process for preparing 3,3',5,5',6,6'-hexaalkyl-2,2'-biphenols, 3,3',4,4',5,5'-hexaalkyl-2,2'-biphenols and 3,3',4,4',5,5',6,6'-octaalkyl-2,2'-biphenols
06/04/2003EP1315692A1 1,1-bis(4-hydroxyphenyl)-3-alkylcyclohexanes, method for their preparation and polycarbonates prepared therefrom
06/04/2003EP1315691A1 Method of obtaining a hydroxytyrosol-rich composition from vegetation water
06/04/2003CN1422239A Substance mixture containing bisphenol A
06/04/2003CN1422238A Method for cleaning reactors used for acid-catalyzed production of bisphenols
06/04/2003CN1421426A New process of preparing tea polyphenol with high catechin content and low caffine content
06/03/2003US6573413 Process for activating catalyst for the hydroxylation of aromatics
06/03/2003US6573408 Feed containing impurities in fluid communication with an aqueous alkaline solution feed; the cumene hydroperoxide cleavage product mixture and aqueous alkaline solution feeds are in fluid communication with a neutralization drum having
05/2003
05/30/2003WO2003043965A1 Selective production of o-alkylphenols
05/30/2003WO2003043964A1 Process for producing bisphenol a and apparatus therefor
05/30/2003WO2003043960A2 IMPROVED PURIFICATION OF 4, 4'(5')-DI-t-BUTYLCYCLOHEXANO-18-CROWN-6
05/30/2003CA2447631A1 Selective production of o-alkyl phenols
05/29/2003US20030100803 3-Alkylated-5,5',6,6',7,7,'8,8'-octahydro-2,2'-binaphthols and 3,3'-dialkylated-5,5',6,6',7,7',8,8'-octahydro-2,2'-binaphthols and processes for making them
05/29/2003US20030100802 Process for preparing 3,3',5,5',6,6'-hexaalkyl-2,2'-biphenols,3,3',4,4',5,5'-hexaalkyl-2,2'-biphenols and 3,3',4,4',5,5',6,6'-octaalkyl-2,2'-biphenols
05/29/2003US20030100800 Reacting impurities in an aqueous salt phase with an oxidizing agent at a temperature and time to form water-soluble oxidized derivatives and separating
05/29/2003US20030100799 Method and system for purifying cumene hydroperoxide cleavage products
05/28/2003CN1420859A Process for preparing trimethylhydroquinone diacetate and trimethyl hydro quinone
05/28/2003CN1420855A Method for oxidizing hydrocarbons
05/22/2003WO2003042146A1 Process for the preparation of hydroxylated aromatic compounds
05/22/2003US20030096939 For use in producing phenol resins, epoxide resins or formaldehyde resins
05/21/2003EP1165222A4 Chemical partitioning agents and methods of using same
05/21/2003CN1419530A Method for producing bisphenols
05/15/2003WO2003039729A1 Method for the production of particles
05/15/2003US20030092944 Method for producing 2-alkyl-3-chlorophenols
05/14/2003EP1309532A1 Method for obtaining cocoa bean polyphenol extracts, resulting extracts and uses thereof
05/14/2003EP1309531A1 Derivatives of 4-(trifluoromethyl)-phenol and 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether and method for producing the same
05/14/2003EP0788839B1 An ion exchange resin catalyst for the synthesis of bisphenols and its preparation
05/14/2003CN1418183A Process for producing bisphenol A
05/08/2003WO2003000633A3 A process for the isolation of a major harmful oxidant from cigarette smoke
05/08/2003US20030088130 Method for producing bisphenol catalysts and bisphenols
05/08/2003US20030088129 To produce phenol, acetone and alpha-methyl styrene (AMS) with enhanced safety of operation and reduced by-product formation; by adding acetone to the cumene oxidation product reaction mixture, high yields of AMS are obtained
05/08/2003US20030088113 From compounds such as 1-(benzyloxy)-6-bromo-3-(1,4-dioxaspiro(4.5)dec-8-yl)-2 -oxabicyclo(2.2.2)octan -5-one
05/07/2003EP1307417A1 Method for producing hydroxy aromatics
05/07/2003EP0952977B1 Production of phosphate esters
05/07/2003CN1416413A Process for Producing bisphenol A
05/02/2003EP1012130B9 Hydroperoxide decomposition process
05/01/2003WO2003035733A1 Process for improving the shelf life of a hindered phenol antioxidant
05/01/2003WO2003035592A1 Method of depolymerizing aromatic polycarbonate
05/01/2003US20030083530 Metal salts of hindered aromatic phenols
05/01/2003US20030083527 Method for producing aromatic alcohols, especially phenol
04/2003
04/30/2003CN1107075C Microwave process of extracting polysauharides and polyphenols from tea
04/30/2003CN1107045C Method for preparing tetrabutyl ammonium phenolate diphenol adduct
04/29/2003US6555719 Exothermic reaction provides heat; reduced fouling; pollution control
04/29/2003US6555718 Oxidatively coupling of phenols in presence of Lewis Acid catalysts
04/29/2003US6554967 Method of refining dihydroxyaryl compound
04/23/2003EP1151125A4 Biocatalytic synthesis of quinic acid and conversion to hydroquinone
04/23/2003CN1413180A Fluidised bisphenol dust
04/23/2003CN1106369C Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-01
04/17/2003WO2003031057A1 Catalyst and method for the alkylation of hydroxyaromatic compounds
04/17/2003US20030073771 Process for improving the shelf life of a hindered phenol antioxidant
04/17/2003US20030073572 Containing magnesium oxide and,or iron oxide
04/16/2003EP1301452A2 Process for preparing (-)menthol and similar compounds
04/16/2003CN1411430A Bisphenol phenol adducts
04/16/2003CN1411429A Bis (4-hydroxyaryl) alkanes
04/16/2003CN1411428A Method for producing phosphonium phenolates
04/16/2003CN1410406A Preparation method of benzenediol
04/10/2003WO2002090303A8 Process for extracting phenol by optimization of alkali usage
04/10/2003US20030069457 Preparation and use of non-chrome catalysts for Cu/Cr catalyst applications
04/09/2003EP1299308A2 Chemical extraction process
04/09/2003CN1104924C Thermally-managed separation and dewatering processes for recovering acid products
04/08/2003US6545187 Distillation of a adduct of bisphenol a and phenol
04/03/2003WO2003026632A2 Substituted phenol compounds useful for anesthesia and sedation
04/03/2003WO2002102751A3 Procees for purifying phenol
04/03/2003US20030065229 Bactericides; oxidation resistance; antiinflammatory agents; antitumor agents
04/03/2003US20030065208 Triphenylphosphine derivative, production process therefor, palladium complex thereof, and process for producing biaryl derivative
04/03/2003CA2459125A1 Substituted phenol compounds useful for anesthesia and sedation
04/02/2003EP1298115A1 Process for the preparation of polyhydric alcohols
04/02/2003CN1104405C Tar-free catalytic oxidation of arene utilizing coupling reaction
04/02/2003CN1104404C Preparation alkyl phenol with stable light color
04/01/2003US6541674 Electron-withdrawing group present on carbonyl compound is selected from fluoroalkyl derivatives, esters, including orthoesters, and nitrites and condensation is carried out in basic medium
03/2003
03/27/2003WO2003024908A1 Production of low-particulate bisphenol and use thereof in the manufacturing of polycarbonate
03/27/2003WO2003024592A2 Improved precious metal catalyst for debenzylation
03/27/2003US20030060361 Precious metal catalyst for debenzylation
03/27/2003CA2460852A1 Improved precious metal catalyst for debenzylation
03/26/2003EP1229997B1 Process for removing and recovering of phenolic compounds from aqueous fluids
03/26/2003CN1406218A Process for producing bisphenol A
03/26/2003CN1406152A Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds, and related compositions
03/25/2003CA2111358C Synthetic crystalline zeolite, its synthesis and use
03/20/2003US20030055296 Purifying through a desorber column that is operating at high temperature and low pressure, distillation
03/19/2003EP1019348B1 Process for the preparation of para-fluorophenol
03/18/2003WO2002028528A1 Supported catalyst consisting of metal of the platinum group and obtained by means of controlled electroless deposition
03/18/2003US6534686 Method for producing bisphenol catalysts and bisphenols
03/18/2003CA2422806A1 Supported catalyst consisting of metal of the platinum group and obtained by means of controlled electroless deposition
03/13/2003US20030050515 Preparation of biphenols by oxidative coupling of alkylphenols using a recyclable copper catalyst
03/13/2003US20030050514 Method for producing bisphenols
03/13/2003US20030050513 Catalyst being in the form of particles of which at least 20 weight % have a particle size less than 300 mu m
03/12/2003EP1290054A1 Glyoxal-phenolic condensates with enhanced fluorescence
03/12/2003EP1289917A1 Process for the purification of monotertiarybutyl hydroquinone
03/12/2003EP1289517A2 Pharmaceutical compositions comprising cannabidiol derivatives
03/12/2003CN1402700A Initiation method of method for producing 2,2-bis (4-hydroxyphenyl) propane
03/12/2003CN1401618A Reactor for carrying out disphenol A preparing reaction
03/12/2003CN1102923C Hydroperoxide decomposition process
03/12/2003CN1102922C Method for transport and storage of phenol
03/12/2003CN1102921C Process for hydroxylation of benzene
03/11/2003US6531637 Resorcinol production from the hydrolysis of meta-phenylenediamine
03/06/2003US20030045758 Incremental flow reactor and method for parallel screening
03/05/2003EP1226134B1 Naphthopyrans having a perfluoroalkyl substituent in position 5, preparation and compositions containing them
03/05/2003CN1400198A Producing process of other organism from hydrocarbon
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