Patents
Patents for C07C 46 - Preparation of quinones (1,836)
12/2004
12/07/2004US6828347 Anti-viral multi-quinone compounds and regiospecific synthesis thereof
12/07/2004CA2156734C Ozonide reducing agent
11/2004
11/25/2004US20040235870 Protein kinase inhibitors
11/24/2004CN1176894C Process for purifying hypericin
11/24/2004CN1176893C Extracting and purifying method for hypericum perforatum component in plant
11/10/2004CN1544408A 2,3-dimethoxy-5-methyl-1,4-benzoquinone ú¿ó±ú®preparation method
11/09/2004US6815565 Limiting the amount of hbr present in the reaction mixture was shown to control the amount of benzoquinone produced, monomers for polymer preparation
11/04/2004WO2004094359A1 Method for preparing hydroquinones from mixtures of bromophenols and benzoquinones
11/03/2004EP1472208A1 Novel 3-aryl-2,5-dihydroxy-1,4-benzoquinone derivatives, their preparation method and pharmaceutical compositions containing same
10/2004
10/26/2004US6809206 Contacting a phenyl ester compound with a cyclic compound in the presence of a source of cyanide or fluoride to prepare acylated cyclic 1,3-dicarbonyl compounds
10/26/2004US6809176 Compounds for use in treatment of cancer
10/07/2004US20040199027 Method for preparing hydroquinones and dihydroxybiphenyl compounds from mixtures of bromophenols and benzoquinones
10/06/2004CN1169772C Extraction process of effective rhubarb component, fast released Sanhuang prepn and its prepn process
09/2004
09/29/2004CN1168695C Process for purifying and separating 2,3,5-trimethyl-hydroquinone
09/22/2004CN1531520A Self-reducing anthraquinone compounds
09/09/2004US20040175314 may be incorporated into packaging materials , for example, food and beverage packaging to scavenge unwanted oxygen; to reveal leaks in packages or to indicate package damage caused by handling or tampering
08/2004
08/11/2004CN1519221A Process for prepn. anthraquinone
08/05/2004US20040152629 For use as anticancer compounds and prodrugs
08/05/2004US20040151711 Synthesis of coenzyme Q10, ubiquinone
07/2004
07/22/2004US20040143141 Process for production of dimers of aromatic monohydroxyl compounds
07/13/2004CA2155020C Antiviral naphthoquinone compounds, compositions and uses thereof
07/08/2004DE10260549A1 Verfahren zur Herstellung von Anthrachinon A process for the preparation of anthraquinone
07/01/2004US20040126367 Oxidation resistance; storage at low temperature; overcoated with liposomes from soybean lecithin
06/2004
06/23/2004EP1431265A1 Process for the preparation of anthraquinone
06/17/2004US20040116715 Tocotrienolquinone cyclisation product with an anti-hypercholesterol effect
06/16/2004EP1268566B1 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
06/15/2004US6750241 Two or more ligand moieties covalently linked together by one or more linking groups enabling binding to multiple binding sites; increased efficacy, selectivity and duration; anti-proliferative and anticarcinogenic
06/02/2004CN1501903A Stable solution of reduced coenzyme q
05/2004
05/25/2004US6740785 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide
05/13/2004WO2004014832A3 Redox process particularly for the production of menadione and use of polyoxometalates
05/13/2004US20040092728 Using halodimethylsulfonium halide as activated nucleophilic agent
05/06/2004US20040087663 Viricides
04/2004
04/01/2004US20040062941 Mixture of porous polymer and solid phase support; fine particle sizes; anchoring organic compounds
03/2004
03/31/2004EP1301501B1 Tocotrienolquinone cyclisation product with an anti-hypercholesterol effect
03/30/2004US6713636 Having utility as fluorescent dyes
03/11/2004US20040049056 Process for preparation of esculetin compounds, esculetin compounds and intermediates thereof, and use of both
03/04/2004WO2004018401A1 Preparation of biphenols by oxidative coupling of alkylphenols using a recyclable copper catalyst
03/04/2004US20040044189 Process for the preparation of anthracycline derivatives
02/2004
02/19/2004WO2004014832A2 Redox process particularly for the production of menadione and use of polyoxometalates
02/17/2004US6693221 Contacting hydroxyaromatic compound with hydrogen bromide, source of copper selected from copper compounds and elemental copper, and oxygen gas
02/12/2004WO2004013073A1 Anthracene derivatives and organic electroluminescent devices made by using the same
02/12/2004DE10057415B4 Verfahren zur Herstellung von Chinon-Derivaten und deren Verwendung Process for the preparation of quinone derivatives and the use thereof
02/05/2004US20040024268 Process for catalytically producing organic substances by partial oxidation
02/04/2004EP1386905A1 Stable solution of reduced coenzyme q
02/03/2004US6686485 From tobacco wastes; therapy for brain disorders, prevent tissue damage
01/2004
01/14/2004EP1380558A1 Process for production of dimers of aromatic monohydroxyl compounds
01/14/2004EP1379703A2 Method of purification of a redox mediator solution before electrolytic regeneration thereof
01/07/2004EP1377536A1 Self-reducing anthraquinone compounds
01/02/2004EP1373180A1 Process for preparation of 2-methyl-1,4-naphthoquinone
12/2003
12/24/2003CN1463264A Method for producing aromatic compound dimer
12/18/2003US20030232984 Contacting a phenyl ester compound with a cyclic compound in the presence of a source of cyanide or fluoride to prepare acylated cyclic 1,3-dicarbonyl compounds
11/2003
11/19/2003EP1263705B1 Method for producing 1,1' binaphthalenylidene-4,4'-diones
11/12/2003CN1454885A Process of extracting anthraquinone matter from aerial powtion of rheum officinale plant
10/2003
10/29/2003EP1357118A1 Process for preparation of esculetin compounds, esculetin compounds and intermediates thereof, and use of both
10/23/2003WO2002066690A3 Method of purification of a redox mediator solution before electrolytic regeneration thereof
10/15/2003EP1351912A2 Substituted stilbenes, their reactions and anticancer activity
09/2003
09/25/2003US20030181741 Regeneration of a working solution in a hydrogen peroxide production process
09/24/2003CN1444554A Method for catalystically producing organic substances by partial oxidation
09/10/2003CN1441793A Tocotrienolquinone cyclisation product with anti-hypercholesterol effect
08/2003
08/27/2003EP1261546B1 Regeneration of a working solution in a hydrogen peroxide production process
08/20/2003CN1436562A Hypericum perforatum extract and its prepn process and medicine composition
08/14/2003WO2003066561A1 Novel 3-aryl-2,5-dihydroxy-1,4-benzoquinone derivatives, their preparation method and pharmaceutical compositions containing same
08/14/2003CA2474533A1 Novel 3-aryl-2,5-dihydroxy-1,4-benzoquinone derivatives, their preparation method and pharmaceutical compositions containing same
08/07/2003US20030149285 Method for producing 1,1' binaphthalenylidene-4,4'-diones
07/2003
07/23/2003EP1328654A1 A practical, cost-effective synthesis of coq10
07/22/2003US6596884 Synthesis of hydrogen peroxide
07/09/2003CN1113843C Preparation of vitamin K1
06/2003
06/26/2003US20030119897 Cd45 inhibitors
06/25/2003EP1263470B1 METHOD FOR PRODUCING A COENZYME Q10 / $g(g)-CYCLODEXTRIN COMPLEX
06/17/2003US6579994 Process for preparation of 2-Methyl-1,4-naphthoquinone
05/2003
05/29/2003US20030100805 Compressed gas increases the solubility of the oxidizing agent in the reaction mixture
05/14/2003EP1309537A2 Method for catalytically producing organic substances by partial oxidation
04/2003
04/24/2003CA2746795A1 Method for crystallizing reduced coenzyme q10
04/23/2003EP1001924B1 The use of 1,3,4,6-tetrahydroxy-helianthrone and its derivatives in photodynamic therapy and certain such novel derivatives
04/23/2003CN1106375C Method for preparing substituted anthraquinone
04/17/2003US20030073869 Practical, cost-effective synthesis of CoQ10
04/16/2003EP1301501A1 Tocotrienolquinone cyclisation product with an anti-hypercholesterol effect
04/08/2003US6545184 Practical, cost-effective synthesis of COQ10
04/03/2003US20030061671 Thioxanthone dyes with improved solubility and a method of preparing 2-oxybenzanthrones as intermediate materials for making of these dyes
02/2003
02/27/2003WO2003016407A1 Thioxanthone dyes with improved solubility and a method of preparing 2-oxybenzanthrones as intermediate materials for making of these dyes
02/12/2003EP1282590A2 A process for the preparation of anthracycline derivatives
02/06/2003US20030028054 Synthesis of coenzyme q10 ubiquinone
01/2003
01/22/2003CN1392131A Process for purifying hypericin
01/22/2003CN1392130A Extracting and purifying method for hypericum perforatum component in plant
01/22/2003CN1392129A Process for preparing hypericum perforatum extract
01/22/2003CN1392128A Process for preparing extract containing hypericin and flavon compounds
01/16/2003US20030013677 Anticancer agents
01/16/2003US20030012774 Mixture of gamma-cyclodextrin and coenzyme Q1O is treated by homogenisation and inputting energy.
01/14/2003US6506915 Stereospecific synthesis of optically pure trans (E)isomer of coenzyme Q10 starting from geranyl bromide and 2,3,4,5-tetramethoxytoluene
01/02/2003EP1268566A2 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
01/02/2003EP1268383A1 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide
12/2002
12/31/2002US6500972 Synthesis of TMBQ with transition metal-containing molecular sieve as catalysts
12/12/2002US20020188141 Process for preparation of 2-methyl-1,4-naphthoquinone
12/11/2002EP1263705A1 Method for producing 1,1' binaphthalenylidene-4,4'-diones
12/11/2002EP1263470A1 METHOD FOR PRODUCING A COENZYME Q10 / $g(g)-CYCLODEXTRIN COMPLEX
12/05/2002US20020183512 Compounds for use in treatment of cancer
12/04/2002EP1261546A2 Regeneration of a working solution in a hydrogen peroxide production process
12/04/2002CN1382679A Process for extracting free anthraquinone from rhuhbarb and its medical application
12/04/2002CN1095458C Process for preparing anthraquinone
11/2002
11/28/2002US20020177600 Two or more ligand moieties covalently linked together by one or more linking groups enabling binding to multiple binding sites; increased efficacy, selectivity and duration; anti-proliferative and anticarcinogenic
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