| Total Synthesis of Several 8, 8",-Biflavones |
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| 作者姓名： | Lian Yun ZHAO Shi Jun DA Yu Lin LI Wen CEN Ya Cheng XING |
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| 作者单位： | National Laboratory of Applied Organic Chemistry，LanZhou University，Lanzhou 730000; Department of Chemistry，Qingdao University，Qingdao 266071 |
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| 摘 要： | 8,8"-Biflavonoidsareantw0rtantclass0fbiflavonoids.Asasystematicresearchofthe8,8"-biflav0noids,wehavepreviouslyreportedthestudyonthereactionof2'-hydroxychaloneswithl2-H2SO4-DMSOsystem.'InthispaPer,thesynthesisof5,5",7,7',-tetTameth0xy-8,8"-biflavonela2,4,4",7,7"-tetramethoxy-8,8"-biflavone1b',4',4",,5,5,',7,7"-hexamethoxy-8,8"-biflav0ne1c4and4,4"-dibenZyl0xy-5,5",7,7"-tetramothoxy-8,8"-biflavoneldisreported.ThesyntheticmethodisshownintheSchemebelow.2-Hydroxyacet0phenonescondensedwithsubsti…
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Total Synthesis of Several 8, 8",-Biflavones |
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| Lian Yun ZHAO, Shi Jun DA, Yu Lin LI, Wen CEN, Ya Cheng XING.Total Synthesis of Several 8, 8",-Biflavones[J].Chinese Chemical Letters,1998(4). |
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| Authors: | Lian Yun ZHAO Shi Jun DA Yu Lin LI Wen CEN Ya Cheng XING |
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| Abstract: | Four 8, 8"-biflavones were synthesized by the iodination of 2'-hydroxychalcones at 8position in I2-H2SO4-DMSO system as the key step followed by coupling under Ullmann reaction conditions. |
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| Keywords: | 8 8"-biflavones synthesis I_2-H_2SO_4-DMSO system coupling Ullmann reaction |
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