| Patents for C07C 46 - Preparation of quinones (1,836) |
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| 05/19/2010 | CN201473473U Device by utilizing 2-ethyl anthraquinone crude product to be rectified and purified |
| 05/18/2010 | CA2328106C Process for the preparation of hydrogen peroxide and reaction carrier for carrying out the process |
| 05/12/2010 | CN1837172B Use of separating agent used in preparation of vitamin K3 |
| 05/12/2010 | CN101186567B Method for preparing 2,2'-dimethyl-1,1'-bianthraquinone |
| 04/28/2010 | CN101698638A Method for extracting highly purified chrysophanic acid from roots and stems of rhubarb |
| 04/28/2010 | CN101698637A High-purity emodin separation method |
| 04/21/2010 | CN101696160A Method for refining aoleemodin |
| 04/21/2010 | CN101003501B Method for synthesizing coenzyme Q10 in high efficiency |
| 04/14/2010 | EP1781589B1 Synthesis of idarubin aglycone |
| 04/14/2010 | CN101693654A Method for refining aloe-emodin by reagent-grade N, N-dimethyl acetamide |
| 04/14/2010 | CN101693653A Method for purifying aloe-emodin |
| 04/01/2010 | WO2010035000A1 Process for the preparation of vitamin k2 |
| 04/01/2010 | WO2010034999A1 Crystalline menoquinone-7 (vitamin k2) |
| 03/31/2010 | CN101687752A Process for the preparation oftrans-2,3-disubstituted naphthoquinones |
| 03/10/2010 | EP2160376A2 Novel crystalline forms of atovaquone |
| 03/04/2010 | WO2010023686A2 Crystalline form of 2-chloro-3-[4-(4-chlorophenyl) cyclohexyl] [1,4]naphthoquinone, process for the same and use for producing 2-[4-(4-chlorophenyl)cyclohexyl]-3- hydroxy- 1,4- naphthoquinone |
| 02/17/2010 | EP2152657A1 Process for the preparation oftrans-2,3-disubstituted naphthoquinones |
| 02/09/2010 | US7658937 exposing the parasite Brugia malayi, which causes lymphatic filariasis, to an inhibitory amount of a hydroxy substituted anthraquinone selected from 1-methyl-2,3-dihydroxy anthraquinone, 1-methyl-2,3,8-trihydroxy anthraquinone, 1-hydroxy-2,8-dimethoxy-3-methyl anthraquinone |
| 01/28/2010 | WO2010009492A1 ATOVAQUONE WITH A PARTICLE SIZE DIAMETER RANGE (D90) OF GREATER THAN 3 μM TO ABOUT 10 μM |
| 01/28/2010 | CA2767560A1 Atovaquone with a particle size diameter range (d90) of greater than 3um to about 10um |
| 01/20/2010 | CN100581539C Effective component of hedyotis diffusa and method of preparing the same and application |
| 01/07/2010 | WO2010001379A1 A process for preparing atovaquone and associate intermediates |
| 01/07/2010 | WO2010001378A1 Process for the epimerization of atovaquone isomer, atovaquone intermediates and mixture thereof |
| 12/31/2009 | US20090321729 Anthracene Derivatives and Organic Electroluminescent Devices Made by Using the Same |
| 12/30/2009 | CN100575931C 1- allyloxy -4-hydroxyanthraquinone-9, 10-diketone and method of preparing the same and application thereof |
| 12/24/2009 | US20090318566 Gossypol derivatives, production method thereof and uses of same |
| 12/16/2009 | CN101602660A Production technology for 2-amylanthraquinone |
| 12/16/2009 | CN101602655A Method for preparing pentacene quinone intermediate compound and pentacene derivative |
| 12/09/2009 | CN100567499C Method for producing coenzyme Q10 by enzyme engineering method |
| 12/03/2009 | DE20122900U1 Ubichinon Konzentrat Ubiquinone concentrate |
| 11/12/2009 | WO2009007991A3 A new process for preparation of atovaquone and novel intermediates thereof |
| 11/11/2009 | CN101575279A Method for supercritical fluid extraction of juglone in walnut seed green skin waste residue |
| 11/11/2009 | CN101575278A Method for preparing high purity dihydroirisquinone, pallason B |
| 11/11/2009 | CN101575277A Method for preparing high purity irisquinone, pallason A |
| 11/11/2009 | CN101575276A Method for synthesizing 2-methyl-1,4-naphthaquinone by taking ionic liquid as catalyst |
| 10/21/2009 | CN101560145A Method for separating chrysophanol and physcion by silica-gel column chromatography |
| 10/21/2009 | CN101560144A Synthetic method of 6, 11-dichloro-5, 12-naphthacenequinone |
| 10/14/2009 | CN100548957C Juglone extracting process |
| 10/08/2009 | WO2009122432A2 Preparation of naphthoquinone compounds using 2, 3-dihalonapthoquinone |
| 10/01/2009 | WO2009098082A3 Antiinfective and antitumoral compounds isolated from tropical lianas |
| 09/09/2009 | CN101525282A Method for preparing 2-bromo anthraquinone |
| 09/03/2009 | WO2009106910A1 Process for the preparation of aloe-emodin |
| 08/26/2009 | EP2093207A1 Antiinfective and antitumoral compounds isolated from tropical lianas |
| 08/26/2009 | CN101514153A Synthesis method for high-purity substituted anthraquinones |
| 08/19/2009 | CN101508637A Method of preparing aloe-emodin |
| 08/19/2009 | CN100528825C Method for preparing camphorquinone through catalysis of metalloporphyrin and oxidation in air |
| 08/13/2009 | WO2009098082A2 Antiinfective and antitumoral compounds isolated from tropical lianas |
| 08/05/2009 | CN100522907C Method for producing aromatic compound dimer |
| 07/29/2009 | EP1268383B1 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide |
| 06/24/2009 | CN100503543C Method of producing reduced coenzyme q10 as oily product |
| 05/26/2009 | CA2402156C Regeneration of a working solution in a hydrogen peroxide production process |
| 05/20/2009 | CN101434530A Method for extracting alkannin from alkanet |
| 05/13/2009 | CN101429108A Purification method for separation of cozymase Q10 |
| 04/08/2009 | CN100475762C Process for extracting hypericin from Hypericum perforatum L. |
| 04/02/2009 | US20090087420 Stable solution of reduced coenzyme q |
| 03/24/2009 | CA2438331C Method of purification of a redox mediator before electrolytic regeneration thereof |
| 03/17/2009 | US7504495 Quencher compositions comprising anthraquinone moieties |
| 03/10/2009 | CA2209270C Method of preparing substituted anthraquinones and use thereof for preparing rheins |
| 02/18/2009 | CN101367717A Total synthesis method of despinner alkannin |
| 02/05/2009 | WO2005113478A9 Novel anthraquinones and process for the preparation and method of use thereof |
| 01/29/2009 | WO2008140328A3 Novel intermediates, process for their preparation and synthesis of 1,4-benzoquinones |
| 01/21/2009 | CN101348425A Method for coproduction of chrome tanning agent and menadione |
| 01/15/2009 | WO2009007991A2 A new process for preparation of atovaquone and novel intermediates thereof |
| 01/07/2009 | CN100448831C Continuous coenzyme Q0 producing pipeline process |
| 12/31/2008 | CN101333158A Method for preparing idebenone |
| 12/18/2008 | WO2005113478A3 Novel anthraquinones and process for the preparation and method of use thereof |
| 12/10/2008 | CN101318889A Method of stabilizing reduced coenzyme Q10 |
| 12/10/2008 | CN100441557C Method for extracting rhubarb powder dissociated anthraquinone by supercritical acid hydrolysis |
| 11/26/2008 | CN101311149A Anthracene derivative and organic electroluminescent element utilizing the same |
| 11/20/2008 | WO2008140328A2 Novel intermediates, process for their preparation and synthesis of 1,4-benzoquinones |
| 11/20/2008 | WO2008139290A1 Process for the preparation oftrans-2,3-disubstituted naphthoquinones |
| 11/20/2008 | CA2685448A1 Process for the preparation of trans-2,3-disubstituted naphthoquinones |
| 11/05/2008 | CN100430360C Method for improving synthesis of coenzyme Q10 |
| 10/29/2008 | CN100429196C Extraction process and application of emodin and aloe-emodin |
| 10/21/2008 | US7439407 Fluorinated pentacene derivative and method of producing same |
| 10/16/2008 | WO2008122988A1 Process for preparation of atovaquone and the conversion of cis-isomer to trans- isomer |
| 10/15/2008 | CN101285048A Rhodobacter sphaeroides mutant strain and uses thereof |
| 10/01/2008 | CN101274884A Process for extracting bacterial cell coenzyme Q10 |
| 09/18/2008 | WO2008111515A1 Process for production of aromatic carbonyl compound |
| 09/17/2008 | CN101265172A Technique for synthesizing buparvaquone |
| 09/17/2008 | CN101265171A Technique for synthesizing atovaquone |
| 09/10/2008 | CN101260030A Method for preparing 2,3,5-trimethylbenzoquinone by using ionic liquid carrying catalyst |
| 08/13/2008 | CN101243031A Process for the preparation of ubihydroquinones and ubiquinones |
| 08/06/2008 | CN100408536C Supercritical CO2 extraction process of total rhubarb anthraquinone |
| 08/06/2008 | CN100408535C Preparation method of extracting hemostatic substance 1,3-dihydroxyanthraquinone from India madder charcoal |
| 07/30/2008 | CN101233095A Method of purifying ubiquinone-10 |
| 07/23/2008 | CN101225037A Method for synthesizing antitumor derivative apogossypolone by using gossypol acetate |
| 07/23/2008 | CN100404489C Method for extracting hypericin |
| 07/23/2008 | CN100404488C A process for synthesis of coenzyme Q10 |
| 07/16/2008 | CN101219942A Method for extraction separation of total anthraquinone compounds |
| 07/16/2008 | CN100402543C Preparation method of hyperin and hypericin of Hypericum perforatum |
| 06/25/2008 | CN101205176A Optimum process for extracting anthraquinone components from rhubarb horsetails by cell ultrasonication |
| 06/25/2008 | CN100396656C Process for preparing pentaptycene p-benzodiquinone |
| 06/03/2008 | CA2298820C The use of 1,3,4,6-tetrahydroxy-helianthrone and its derivatives in photodynamic therapy and certain such novel derivatives |
| 05/28/2008 | CN101186567A Method for preparing 2,2'-dimethyl-1,1'-bianthraquinone |
| 05/21/2008 | CN101182290A Shikonin dimethyl ether 6-site side chain isomer as well as derivatives and synthesis method thereof |
| 05/07/2008 | EP1918270A1 Method of purifying ubiquinone-10 |
| 04/30/2008 | EP1915333A1 Process for the preparation of ubihydroquinones and ubiquinones |
| 04/23/2008 | CN100383102C Method for synthesizing Q#-[10] by side chain coupling extension method |
| 03/26/2008 | CN101148403A Synthesis method for coenzyme Q compounds |