| 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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| 03/10/1999 | CN1210512A Phenol compound hydroxylacion method |
| 03/04/1999 | WO1999010357A1 Binuclear non-heme iron catalysts |
| 03/03/1999 | CN1209428A Preparation for phenol and derivative thereof |
| 03/02/1999 | US5877355 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom |
| 02/23/1999 | US5874647 Benzene hydroxylation catalyst stability by acid treatment |
| 02/23/1999 | US5874646 Catalytic hydroxylation of an aromatic compound with nitrous oxide in the presence of a zeolite catalyst containing a group 8 metal; reduced carbon monoxide production during regeneration |
| 02/23/1999 | US5874645 Heating dihydroxydiphenyl compound with acid to cause formation of double bond |
| 02/23/1999 | US5874596 Titanosilicate catalyst particle |
| 02/23/1999 | US5873981 Mixing excess phenolic azeotrope with aqueous alkanesulfonic acid, boiling off water and recycling solution to reactor in which a phenol and an alpha-haloketone react to form a dihydroxy-alpha-alkylstilbene |
| 02/18/1999 | DE19735199A1 Removing nitrogenous impurities from halo:phenol compounds |
| 02/18/1999 | DE19728379C1 Herstellung und Reinigung von 3-(4-Hydroxyphenyl)-1,1,3-trimethylindan-5-ol Preparation and purification of 3- (4-hydroxyphenyl) -1,1,3-trimethylindan-5-ol |
| 02/18/1999 | DE19728377C1 Herstellung und Reinigung von 3-(4-Hydroxyphenyl)-1,1,3-trimethylindan-5-ol Preparation and purification of 3- (4-hydroxyphenyl) -1,1,3-trimethylindan-5-ol |
| 02/17/1999 | CN1208398A Process for the preparation of para-fluorophenol |
| 02/11/1999 | WO1999006145A1 Process for the preparation of a catalytic microcomposite from a silicate and a highly fluorinated ion exchange resin |
| 02/11/1999 | DE19727351C1 Verfahren zur Herstellung von Phosphoniumphenolaten A process for preparing phosphonium |
| 02/03/1999 | EP0894783A1 Process for the synthesis of phenol from benzene |
| 02/02/1999 | US5866739 Heteropoly salts or acid salts deposited in the interior of porous supports |
| 01/29/1999 | CA2240612A1 Preparation of phenol and its derivatives |
| 01/27/1999 | EP0892773A2 Preparation of aromatic hydroxycarboxylic acids and dialkali metal salts thereof |
| 01/27/1999 | EP0892772A1 A process for the preparation of calixarenes, and new calixarene compounds |
| 01/26/1999 | CA2102289C Process for high purity tetrabromobisphenol-a |
| 01/21/1999 | WO1999002474A2 Method for producing tetrabutyl ammonium phenolate diphenol adduct |
| 01/21/1999 | WO1999002473A1 A process for the preparation of para-fluorophenol |
| 01/21/1999 | WO1998034894A3 Hydroperoxide decomposition process |
| 01/20/1999 | EP0891960A1 Process for the preparation of pyrocathecol mono ethers and pyrocathecols |
| 01/20/1999 | EP0891368A1 Catalytic production or aryl alkyl hydroperoxides by polynuclear transition metal aggregates |
| 01/20/1999 | EP0701577B1 Polymer alkylation of hydroxyaromatic compounds |
| 01/20/1999 | CN1205683A Improved process for prodn. of bisphenols |
| 01/20/1999 | CN1205324A Preparation of catechol monoethers and catechols |
| 01/20/1999 | CN1205322A Method for producing diarymethane or its derivatives |
| 01/14/1999 | WO1999001415A1 Method for producing and purifying 3-(3-hydroxyphenyl)-1,1,3-trimethylindan-5-ol |
| 01/14/1999 | WO1999001414A1 Method for preparing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol |
| 01/14/1999 | WO1999001413A1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol |
| 01/14/1999 | DE19730022A1 Verfahren zur Herstellung von Tetrabutylammoniumphenolat-Diphenoladdukt A process for the production of tetrabutylammonium phenolate diphenol adduct |
| 01/13/1999 | EP0890564A2 Process for the preparation of a p-dihydroxyl aromatic compound |
| 01/13/1999 | EP0890562A1 Process for producing diarylmethanes or their derivatives |
| 01/13/1999 | EP0651674B1 Catalysts and their use in oxidation of satured hydrocarbons |
| 01/12/1999 | US5859267 Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith |
| 01/12/1999 | US5859067 Preparing bis(2-hydroxy-1-naphthyl)decane from the corresponding diacid; forming acid dichloride; treating with 2-naphthol; rearrangement; reduction; inhibits action of adenosine triphosphatase |
| 01/07/1999 | WO1999000395A1 Method for producing phosphonium phenolates |
| 01/07/1999 | EP0889018A1 Preparation of phenol and its derivatives |
| 01/07/1999 | EP0888185A1 PREPARATION AND USE OF NON-CHROME CATALYSTS FOR Cu/Cr CATALYST APPLICATIONS |
| 01/07/1999 | EP0888175A1 Upflow fixed bed reactor with packing elements |
| 01/07/1999 | CA2294868A1 Method for producing phosphonium phenolates |
| 01/05/1999 | US5856589 Method to defoul bisphenol-phenol adduct fouled crystallizer coolers |
| 12/30/1998 | WO1998058893A1 Method for chlorinating halogenated phenols |
| 12/30/1998 | EP0683761B1 A novel process for the production of high purity and ultrapure bisphenol-a |
| 12/30/1998 | CN1203579A Improved metal-ligand complex catalyzed processes |
| 12/30/1998 | CN1203572A Method for c-alkylating hydroxylated aromatic compounds |
| 12/30/1998 | CN1203535A Thermally-managed separation and dewatering processes for recovering acid products |
| 12/30/1998 | CN1203219A Process for production of halogeno-O-hydroxydiphenyl compounds |
| 12/30/1998 | CN1203218A Separation and purification method of T-butyl-methylphenol isomer |
| 12/29/1998 | US5853949 Method of synthesizing polyphenol compound and positive working photoresist composition comprising polyphenol compound |
| 12/23/1998 | EP0885865A1 Process for producing phenols |
| 12/23/1998 | CN1041300C Method for extracting fresh-keeping agent from tea |
| 12/22/1998 | US5851837 Method for determination of salt stoichiometry |
| 12/17/1998 | WO1998056737A1 Bromination process |
| 12/17/1998 | CA2289020A1 Bromination process |
| 12/16/1998 | CN1201776A Synthesis of p-cresol by direct alkali fusion method from toluene-p-sulfonic acid |
| 12/15/1998 | US5849959 Derivatives of 2, 3, 6-trifluorophenols and a process for their preparation |
| 12/09/1998 | EP0882005A1 Phenol compound hydroxylation method |
| 12/08/1998 | US5847237 Catalyst for ortho-alkylation of phenols, a precursor thereof, and production of ortho-alkylated phenols by use of said catalyst |
| 12/08/1998 | US5847236 Process for the preparation of 2-chloro-4-methylphenol |
| 12/08/1998 | US5847235 Method of phenol tar desalting |
| 12/08/1998 | US5847234 Process for the preparation of 4-hydroxybiphenyl |
| 12/08/1998 | US5847232 Process for the preparation of tetrabromobisphenol-A |
| 11/26/1998 | WO1998052897A1 Method for processing mother liquors from the production of bisphenol |
| 11/26/1998 | WO1998052896A1 Method for continuous production of dihydroxydiphenylalkanes |
| 11/26/1998 | WO1998052895A1 Method for continuous production of dihydroxydiarylalkanes |
| 11/25/1998 | CN1200105A Isomerization of bisphenols |
| 11/19/1998 | DE19720541A1 Verfahren zur kontinuierlichen Herstellung von Dihydroxydiphenylalkanen A process for the continuous production of Dihydroxydiphenylalkanen |
| 11/19/1998 | DE19720540A1 Verfahren zur Aufarbeitung von Mutterlaugen aus der Bisphenolsynthese Process for working up mother liquors from the bisphenol synthesis |
| 11/19/1998 | DE19720539A1 Verfahren zur kontinuierlichen Herstellung von Dihydroxydiarylalkanen A process for the continuous production of dihydroxydiarylalkanes |
| 11/18/1998 | EP0878457A1 Separation and purification method of tert.-butyl-methylphenol isomers |
| 11/18/1998 | CN1199040A Process for preparation of o-secondary butyl phenol |
| 11/18/1998 | CN1040744C Extraction of natural guaiacol |
| 11/17/1998 | US5837252 Extraction with acetone reducing nordihydroguaiaretic quinone present by ascorbic acid |
| 11/11/1998 | EP0876319A1 Improved process for the production of bisphenols |
| 11/11/1998 | CN1198430A Process for preparing 3,5-dimethylphenol |
| 11/10/1998 | US5834517 Hair, skin conditioners; improved viscosity |
| 11/10/1998 | US5834516 Meadowfoam betaines in personal care applications |
| 11/04/1998 | EP0875494A1 Process for the preparation of 3,5-dimethyl phenol |
| 11/04/1998 | EP0752914B1 Supported lewis acid catalysts for hydrocarbon conversion reactions |
| 11/04/1998 | CN1198149A Low metal ion containing 4,4'-(1-(4-(1-(4-hydroxyphenyl)-1-methylethyl) phenyl) ethylidene) bisphenol and photoresist compositions therefrom |
| 11/04/1998 | CN1197785A Preparation of o-isopropyl phenol |
| 11/03/1998 | US5830935 Color of basic metal organic salts by employing C7 -C17 alkyl glycidyl esters and stabilized halogen-containing polymers |
| 10/29/1998 | WO1998047843A1 Process for the hydroxylation of 1,4-dichlorobenzene |
| 10/29/1998 | WO1998047837A1 Method for catalytic and selective oxidation of aromatic compounds |
| 10/29/1998 | DE19717225A1 Colourant for dyeing keratinous fibre, especially human hair, that can be used without oxidant |
| 10/29/1998 | DE19717176A1 Verfahren zur katalytischen und selektiven aromatischer Verbindungen Process for the catalytic and selective aromatic compounds |
| 10/28/1998 | EP0873983A2 Process for decomposition of cumene hydroperoxide |
| 10/28/1998 | CN1197055A 2,6-isopropyl-phenol preparing method |
| 10/21/1998 | EP0871527A1 Thermally-managed separation and dewatering processes for recovering acid products |
| 10/21/1998 | CN1040317C Process for producing parlkaline alkaline-soil metal phenate |
| 10/21/1998 | CN1040316C Process for production of cresols |
| 10/21/1998 | CN1040294C Process for production of granula of 2,2-bix(4-hydroxy phenyl) propane |
| 10/15/1998 | WO1998045234A1 PROCESSES FOR PRODUCING p-SUBSTITUTED PHENOLS |
| 10/08/1998 | WO1998043934A1 Process for making phenol or phenol derivatives |
| 10/07/1998 | EP0868417A2 Method to prepare ortho substituted phenol |
| 10/07/1998 | CN1194966A Process for extracting high-purity tea polyphenols |