| 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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| 09/14/1999 | US5952532 Hydroxylation of aromatics using molecular oxygen as the terminal oxidant without coreductant |
| 09/14/1999 | CA2003780C Process of producing isopropylnaphthols |
| 09/08/1999 | EP0638057B1 Recovering values from heavy ends in bisphenol-a production |
| 09/08/1999 | CN1227834A Manufacturing method for bisphenols and manufacturing method for polycarbonate |
| 09/02/1999 | WO1999043637A1 Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
| 09/02/1999 | WO1999043636A2 Disubstituted lavendustin a analogs and pharmaceutical compositions comprising the analogs |
| 09/02/1999 | WO1999043611A1 Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide |
| 09/02/1999 | DE19808385A1 Verfahren zur Suspensionshydrierung einer Anthrachinon-Verbindung in einem speziellen Reaktor zur Herstellung von Wasserstoffperoxid A process for the suspension hydrogenation of an anthraquinone compound in a specific reactor for the production of hydrogen peroxide |
| 09/02/1999 | CA2322192A1 Suspension hydrogenation of an anthraquinone compound in a special reactor for preparing hydrogen peroxide |
| 09/02/1999 | CA2321307A1 Disubstituted lavendustin a analogs and pharmaceutical compositions comprising the analogs |
| 09/01/1999 | EP0809626B1 Production of enantiomerically enriched ortho-substituted alpha, alpha diaromatic methanols |
| 08/31/1999 | US5945569 Catalyst and method for producing phenols |
| 08/31/1999 | US5945106 A concentrated extract of reduced nordihydroguairetic acid containing larrea tridentate plant material, and ascorbic acid, a corticosteroid, a nonsteroid anti-inflammatory, an antiinflammatory fatty acid, p-antagonsist, and an anesthetic |
| 08/25/1999 | EP0937699A1 Phenol tar desalting method |
| 08/25/1999 | EP0937021A1 Production of nabumetone or precursors thereof |
| 08/25/1999 | CN1044787C Producing isobutene catalyst by oxidizing and dehydrogenating isobutane |
| 08/24/1999 | CA2129866C Catalyst and method for producing phenols |
| 08/19/1999 | DE19805690A1 Trimethyl hydroquinone preparation from oxo-isophorone in high yield useful as starting material for production of vitamin E |
| 08/17/1999 | US5939494 Catalyst useful for the condensation of an aldehyde or ketone starting material with a phenol is an insoluble mercaptosulfonic acid compound |
| 08/12/1999 | WO1999040132A1 PROCESS FOR PRODUCING LIGHTLY COLORED p-VINYLPHENOL POLYMER |
| 08/12/1999 | CA2261404A1 Process for the production of trimethylhydroquinone diesters and of trimethylhydroquinone |
| 08/12/1999 | CA2229508A1 Phenol tar desalting method |
| 08/11/1999 | EP0934240A1 Production of 6-bromo-2-naphthol and derivatives |
| 08/11/1999 | CN1225618A Process for preparing alcohols and/or aldehydes from olefins |
| 08/10/1999 | US5935897 Hydrogenation, oxidation, dehydrogenation catalysts |
| 08/05/1999 | WO1999038594A1 Separation of substance mixtures using polysaccharides |
| 08/05/1999 | DE19803415A1 Trennung von Stoffgemischen unter Einsatz von Polysacchariden Separation of mixtures of substances using polysaccharides |
| 08/05/1999 | CA2319386A1 Separation of substance mixtures using polysaccharides |
| 08/04/1999 | EP0764146B1 Phenol with low levels of methylbenzofuran |
| 08/04/1999 | EP0755371B1 Method for production of phenol and its derivatives |
| 08/04/1999 | EP0679151B1 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane |
| 08/03/1999 | US5932773 Process for the preparation of α and β napthol by hydroxylation of naphthalene using organotransition metal complex |
| 07/28/1999 | CN1223995A Method for manufacturing bisphenol |
| 07/27/1999 | CA2176199C Process for preparing substituted phenols |
| 07/21/1999 | EP0930289A1 Method for making tris(hydroxyphenyl) compounds |
| 07/21/1999 | EP0929507A1 Process for the hydroxylation of benzene |
| 07/21/1999 | EP0929506A1 Process for preparing stilbene diols |
| 07/15/1999 | WO1999035239A1 Method for obtaining grape tannin, resulting tannin and uses |
| 07/14/1999 | EP0676387B1 2,2-bis(3,5-disubstituted-4-hydroxyphenyl)propane derivative, process for producing the same, and process for producing pyrogallol therefrom |
| 07/13/1999 | US5921089 Method for the transport and storage of phenol |
| 07/08/1999 | WO1999033777A1 Method for increasing the space-time yield in the production of bisphenol a |
| 07/07/1999 | EP0927149A1 Process for preparing and recovering 4,4'-dihydroxy-alpha-alkylstilbene or 4,4'-dihydroxy-alpha, alpha'-dialkylstilbene |
| 07/07/1999 | EP0927148A2 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation |
| 07/07/1999 | EP0927147A1 Alkylation of organic aromatic compounds using beta zeolite catalyst |
| 07/06/1999 | US5919566 Inorganic support materials containing sulphonate and mercapto groups, process for the production thereof and use as catalyst |
| 07/01/1999 | WO1999032423A1 Method for producing bis(4-hydroxyaryl)alkanes |
| 06/30/1999 | EP0926118A1 Process for the purification of bisphenols and preparation of polycarbonates therefrom |
| 06/30/1999 | EP0925270A1 Production of 6-bromo-2-naphthol and derivatives |
| 06/30/1999 | EP0556293B2 Process for preparing bisphenol fluorene compounds |
| 06/30/1999 | CN1043881C Process for production of cresols |
| 06/29/1999 | US5917070 Ethylene oxide-propylene oxide copolymer |
| 06/24/1999 | DE19757570A1 Production of Bisphenol A with improved space-time yield |
| 06/24/1999 | DE19756771A1 Production of bis:4-hydroxyaryl-alkane from phenolic and ketone compounds |
| 06/23/1999 | EP0923527A1 A process for the preparation of 2-aryl-propionic and 2-aryl-acetic acids starting from aryl-olefins |
| 06/22/1999 | US5914431 Reacting phenols and ketones in the presence of a mineral acid catalyst and, as cocatalyst an insoluble ion exchange resin of crosslinked polystyrene having acidic groups neutralized by mercaptoamines and/or thiazolidines |
| 06/16/1999 | CN1219528A Method for hydroxylating aromatic compounds |
| 06/15/1999 | US5912391 Catalytic hydroxylation of aromatic compounds using vanadium compounds |
| 06/02/1999 | EP0919531A1 Process for the oxidation of aromatic compounds to hydroxyaromatic compounds |
| 06/01/1999 | CA1340574C Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes |
| 05/26/1999 | EP0918046A1 Method for manufacturing bisphenol |
| 05/26/1999 | CN1217709A Noval 1,3-diphenyl propane derivative having inhibitory activity against tyrosinase and process for preparing same |
| 05/25/1999 | US5907069 Production of nabumetone or precursors thereof |
| 05/25/1999 | US5907063 Reaction with hydrogen bromide in the presence of sulfoxide |
| 05/20/1999 | WO1999024385A1 Fluorinated derivatives of phenanthrene and the utilization thereof in liquid crystal mixtures |
| 05/19/1999 | EP0916638A1 Method for hydroxylating aromatic compounds |
| 05/19/1999 | EP0915816A1 Process for preparing alcohols and/or aldehydes from olefins |
| 05/06/1999 | WO1999021863A1 Production of phosphate esters |
| 05/06/1999 | WO1999021810A1 Method for producing phenols, aldehydes, esters and/or ketones from lignin and/or lignin sulphonic acid |
| 05/06/1999 | WO1999021792A1 Method for hydrogenating an anthraquinone compound |
| 05/06/1999 | DE19748819A1 Fluorierte Derivate des Phenanthrens und ihre Verwendung in Flüssigkristallmischungen Fluorinated derivatives of phenanthrene and their use in liquid crystal mixtures |
| 05/06/1999 | DE19747688A1 Verfahren zur Herstellung von Phenolen, Aldehyden, Estern und/oder Ketonen aus Lignin und/oder Ligninsulphonsäure A process for producing phenols, aldehydes, esters and / or ketones of lignin and / or Ligninsulphonsäure |
| 05/06/1999 | CA2309141A1 Method for producing phenols, aldehydes, esters and/or ketones from lignin and/or lignin sulphonic acid |
| 05/06/1999 | CA2308459A1 Hydrogenation of an anthraquinone compound in the presence of a catalyst comprising, as active metal, at least one metal of transition group viii of the periodic table of the elements |
| 05/06/1999 | CA2276156A1 Production of phosphate esters |
| 04/29/1999 | DE19747407A1 Catalytic hydrogenation of anthraquinones, especially in hydrogen peroxide manufacture |
| 04/27/1999 | CA2005470C Process for continuous purification of bisphenols |
| 04/27/1999 | CA2005469C Method of purifying bisphenols |
| 04/21/1999 | EP0909267A1 Novel 1,3-diphenylpropane derivatives having inhibitory activity against tyrosinase and process for preparation thereof |
| 04/15/1999 | WO1999018052A1 Separating agent for optical isomers and process for producing the same |
| 04/14/1999 | EP0908440A2 Defouling bisphenol-phenol adduct fouled crystallizer coolers |
| 04/14/1999 | EP0907628A1 Process for making water-soluble derivatives of quinones |
| 04/14/1999 | CN1213988A Upflow fixed bed reactor with packing elements |
| 04/13/1999 | CA2045553C Process for the preparation of vinyl ethers |
| 04/07/1999 | EP0906270A1 Process for producing hydroxyarenes |
| 04/07/1999 | EP0906263A1 Process for improving color of basic metal organic salts by employing c7-c17 alkyl glycidyl esters and stabilizing halogen-containing polymers therewith |
| 04/07/1999 | EP0716645B1 Propofol purification |
| 04/06/1999 | US5892132 Transport hydroxylation reactor |
| 04/06/1999 | US5891626 Enzyme-linked analysis; using surfactant |
| 04/01/1999 | WO1999002474A3 Method for producing tetrabutyl ammonium phenolate diphenol adduct |
| 03/31/1999 | EP0905114A1 Suppression of highly alkylated phenols in the catalytic alkylation reaction of phenol |
| 03/31/1999 | EP0904258A1 A process for the formation, isolation and purification of comestible xanthophyll crystals from plants |
| 03/31/1999 | CN1212251A Suppression of highly alkylated phenols in catalytic alkylation reaction of phenol |
| 03/30/1999 | US5888471 Synthetic crystalline porous material containing oxides of silicon, titanium and gallium |
| 03/24/1999 | EP0902728A1 Catalyst compositions of nanoparticulate metal on a refractory support |
| 03/24/1999 | EP0783473B1 Process for the purification of 2,6-diisopropylphenol |
| 03/24/1999 | CN1211562A Improved method to defoul bisphenol-phenol adduct fouled crystallizer coolers |
| 03/17/1999 | EP0901998A1 Neutral oil removal from natural cresylic acid mixtures |
| 03/17/1999 | EP0848693A4 Isomerization of bisphenols |
| 03/10/1999 | EP0900189A1 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom |
| 03/10/1999 | EP0900185A1 Vitamin d analogs and methods of preparing these compounds |