| Patents for C07C 46 - Preparation of quinones (1,836) |
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| 04/18/2001 | EP1092701A1 Process for the preparation of 2,3,5-trimethyl-p-benzquinone |
| 04/12/2001 | WO2001025179A1 Preparation of tetracyclic intermediates |
| 04/05/2001 | WO2001023329A1 Method for brominating organic compounds |
| 03/29/2001 | DE19946367A1 Verfahren zur Bromierung organischer Verbindungen A process for the bromination of organic compounds |
| 02/28/2001 | CN1062551C Naphthoquinone derivant |
| 02/27/2001 | US6193943 Catalytic activity; for peroxide hydroxylation of benzene and oxidation of substituted aromatics |
| 02/08/2001 | WO2000066528A3 Quinones for treatment of diseases |
| 02/07/2001 | EP1073607A1 Method for producing hydrogen peroxide and reaction carriers for carrying out the method |
| 01/30/2001 | US6180804 Tetrahydro alkylanthraquinoneepoxide with boehmite |
| 01/16/2001 | CA2029993C Preparation of hypericin |
| 12/19/2000 | US6162799 Silicon substituted naphthoquinones |
| 12/19/2000 | US6162414 Quasi crystalline inorganic oxide compositions prepared by neutral templating route |
| 12/05/2000 | US6156155 Method for the delignification of lignocellulosic material by adding a dialkyl substituted octahydroanthraquinone |
| 11/28/2000 | US6153169 A cyclic anthraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydroderivatives by hydrogenating working solution, then oxidizing |
| 11/09/2000 | WO2000066528A2 Quinones for treatment of diseases |
| 11/09/2000 | CA2372611A1 Quinones for treatment of diseases |
| 10/18/2000 | CN1057552C Triphenodioxazine dyes and preparation and application of same |
| 10/03/2000 | US6127580 Cycloaddition to give corresponding tetrahydroanthraquinone which is oxidized with oxygen in the presence of a basic catalyst to give the anthraquinone; cycloaddition and oxidation are carried out in the presence of aqueous diluent |
| 09/08/2000 | WO2000051958A1 Synthesis of 4-ketocyclopentene and cyclopentadiene compounds |
| 09/08/2000 | CA2360507A1 Synthesis of 4-ketocyclopentene and cyclopentadiene compounds |
| 08/01/2000 | US6096888 Anthracyclinone derivatives and their use in amyloidosis |
| 07/19/2000 | CN1260343A Easily dispersive anthraquinone and its production and application methods |
| 06/28/2000 | CN1257858A Process for preparing refined 1,4-dihydroxyl anthraquinone |
| 05/31/2000 | CN1254704A Process for purifying and separating 2,3,5-trimethyl-hydroquinone |
| 05/25/2000 | WO2000008495A3 Antiproliferative naphthoquinones, derivatives, compositions, and uses thereof |
| 05/24/2000 | EP1001924A1 The use of 1,3,4,6-tetrahydroxy-helianthrone and its derivatives in photodynamic therapy and certain such novel derivatives |
| 05/02/2000 | US6057461 Diels alder reaction of naphthoquinone with diene |
| 04/27/2000 | WO2000023377A1 Method for preparing a mel-type titanium silicalite, resulting product and uses in catalysis |
| 04/13/2000 | DE19846003A1 Verfahren zur Reinigung und Isolierung von 2,3,5-Trimethyl-p-benzochinon A process for the purification and isolation of 2,3,5-trimethyl-p-benzoquinone |
| 04/12/2000 | EP0992478A1 Process for the purification and isolation of 2,3,5-trimethyl-p-benzoquinone |
| 03/30/2000 | DE19843875A1 Metal salen preparation in high yield for use as oxidation catalyst especially for enantiomeric oxidations, using metal oxide as inexpensive metal source |
| 03/28/2000 | US6043286 Pesticidal compounds |
| 03/10/2000 | CA2281501A1 Reversion of epoxide in the production of hydrogen peroxide |
| 02/17/2000 | WO2000008495A2 Antiproliferative naphthoquinones, derivatives, compositions, and uses thereof |
| 02/02/2000 | EP0975559A1 Method for catalytic and selective oxidation of aromatic compounds |
| 01/06/2000 | WO2000000428A1 Synthesis of hydrogen peroxide |
| 12/22/1999 | EP0965348A1 Process for gently recovering extract fractions from Hypericum perforatum L., pharmaceutical compositions containing them and the use thereof |
| 12/07/1999 | US5998615 Alzheimer's disease; nervous system disorders |
| 11/30/1999 | US5994012 Naphthoquinone derivative and electrophotosensitive material using same |
| 11/10/1999 | CN1234789A Method of preparing trimethylbenzoquinone |
| 11/09/1999 | US5981544 For treatment of diseases involving an alteration in the venous function and/or inflammatory edema |
| 11/09/1999 | CA2105281C Indirect electrosynthesis using cerium |
| 11/02/1999 | US5977187 4-substituted-1,2-naphthoquinones and their use in the inhibition of neoplastic cell growth |
| 10/21/1999 | WO1999052819A1 Method for producing hydrogen peroxide and reaction carriers for carrying out the method |
| 10/21/1999 | DE19816297A1 Verfahren zur Herstellung von Wasserstoffperoxid und Reaktionsträger zu seiner Durchführung A process for the production of hydrogen peroxide and reaction support for its implementation |
| 10/19/1999 | US5969163 Contacting solution of lawsone in dimethyl sulfoxide at low temperature with lithium hydride and warming to form lithium salt, alkylating with allyl halide in presence of lithium iodide, cyclizing alkylated lawsone derivatives |
| 10/13/1999 | CN1231278A Process for preparing anthraquinone |
| 10/05/1999 | US5962002 Pesticidal compounds |
| 09/07/1999 | US5948924 Diels-alder reaction between 1,4-naphthoqionone and an acyclic diene |
| 09/02/1999 | WO1999043316A1 Production of coenzyme q |
| 08/25/1999 | EP0731782B1 Process for catalytically dehydrogenating anthrahydroquinone |
| 08/18/1999 | CN1044702C Ozonide reducing method |
| 08/11/1999 | EP0934242A1 Method for preparing trimethylbenzoquinone |
| 08/05/1999 | DE19818001C1 Preparing extract fractions of Hypericum perforatum, for treatment of depression |
| 08/03/1999 | US5932753 Oxidating m-cresol in presence of a copper halide catalyst in mixed solvents of ketone and acetonitrile |
| 08/03/1999 | CA2024590C Catalytic oxidation of hydroxy containing aromatic compounds |
| 07/14/1999 | EP0759898B1 Naphthoquinone derivatives |
| 06/23/1999 | EP0802730B1 Pesticidal compounds |
| 06/09/1999 | EP0921111A1 Process for the preparation of substituted anthraquinones |
| 06/02/1999 | EP0919533A1 Electrosynthesis of aromatic quinones |
| 06/02/1999 | CN1218028A Method for extracting effective components from medicinal rhubarb |
| 05/25/1999 | CA2254154A1 Electrosynthesis of aromatic quinones |
| 05/18/1999 | CA2047748C Process for preparing anthracyclinones |
| 05/05/1999 | CN1216035A Method for preparing substd. anthraguinone and application to preparation of rheins |
| 04/21/1999 | EP0909268A1 Method for preparing substituted anthraquinone and application to the preparation of rheins |
| 03/16/1999 | US5883270 4-substituted-1, 2-naphthoquinones and their use in the inhibition of neoplastic cell growth |
| 02/25/1999 | DE19736428A1 Activation of bis-tri:organosilyl-peroxide for oxidation of aromatics |
| 02/11/1999 | WO1999006347A1 The use of 1,3,4,6-tetrahydroxy-helianthrone and its derivatives in photodynamic therapy and certain such novel derivatives |
| 02/09/1999 | US5869522 Solvent extraction; plant extracts; trimerization of 2,3-deoxy-1,4-naphthoquinone |
| 02/02/1999 | CA2153669C Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 01/26/1999 | US5863688 Naphthoquinone derivative |
| 01/07/1999 | EP0888326A2 Novel ortho-naphthoquinone derivatives, novel synthesis therefor, and their use in the inhibition of neoplastic cell growth |
| 01/06/1999 | CN1041514C Preparation of benzoquinones by oxidation of phenols |
| 01/05/1999 | US5855864 Amine template |
| 12/15/1998 | CA1340178C 2-neopentylanthraquinone |
| 12/08/1998 | CA1340171C Aqueous solution conataing fat-soluble vitamin k |
| 11/25/1998 | EP0879811A1 Naphthoquinone derivatives and electro-photosensitive material using same |
| 11/24/1998 | US5840264 Crystalline inorganic oxide compositions prepared by neutral templating route |
| 11/11/1998 | EP0876368A1 Use of mono- or diketone tetracyclic derivatives, resulting novel compounds and therapeutical use thereof |
| 11/11/1998 | EP0876356A1 Use of tricyclic 1,4-dihydro-1,4-dioxo-1h-naphthalene derivatives, resulting novel compounds and therapeutical use thereof |
| 11/10/1998 | US5834515 Naphthoquinone derivatives |
| 11/04/1998 | EP0776328B1 8-fluoro-anthracyclines, processes for their preparation and pharmaceutical compositions containing them |
| 10/29/1998 | WO1998047837A1 Method for catalytic and selective oxidation of aromatic compounds |
| 10/29/1998 | DE19717176A1 Verfahren zur katalytischen und selektiven aromatischer Verbindungen Process for the catalytic and selective aromatic compounds |
| 10/20/1998 | US5824700 Ortho-quinone derivatives novel synthesis therefor and their use in the inhibition of neoplastic cell growth |
| 09/29/1998 | US5814608 S-fluoro-anthracyclines, processes for their preparation and pharmaceutical compositions containing them |
| 09/23/1998 | CN1193976A Pesticidal compounds |
| 09/11/1998 | WO1998039337A1 Process for synthesising pure enantiomer anthracycline |
| 09/10/1998 | DE19708496A1 Verfahren zur enantionmerenreinen Anthracylin-Synthese Process for the synthesis of enantiomerically pure Anthracylin |
| 09/01/1998 | US5800800 Crystalline inorganic oxide compositions prepared by neutral templating route |
| 08/26/1998 | EP0860420A1 Process for producing 2-methyl-1,4-benzoquinone |
| 08/06/1998 | WO1998033757A1 Method for preparing substituted anthraquinone and application to the preparation of rheins |
| 08/06/1998 | CA2251024A1 Method for preparing substituted anthraquinone and application to the preparation of rheins |
| 08/05/1998 | CN1189484A Method of synthetizing anthraquinone by microwave heating |
| 07/28/1998 | US5785946 Crystalline inorganic oxide compositions prepared by neutral templating route |
| 07/21/1998 | US5783598 Antiretroviral naphthoquinone compounds compositions and uses thereof |
| 07/01/1998 | EP0850239A1 Pesticidal compounds |
| 06/23/1998 | US5770774 Method for preparing 2-methyl-1,4-naphthoquinone (vitamin K3) |
| 06/23/1998 | US5770729 Sulfide compound with polar substituents, formation of sulfoxide, mild conditions, safe, nonpolluting |
| 06/17/1998 | CN1038744C Method for preparing tetrachlor-1, 4 -benzochinon |