Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (2): 234.

• Articles • Previous Articles     Next Articles

Studies on Flavans(Ⅱ) ——Total Synthesis of 4'-Hydroxy-5,7,3'-trimethoxyflavan and 5,4'-Dihydroxy-7,3'-dimethoxy Flavan

YANG Jin-Hui, LI Ying, XUE Ji-Jun, LI Wei-Dong, LI Yu-Lin   

  1. National Laboratory of Applied Organic Chemistry & Institute of Organic Chemistry, Lanzhou University, Lanzhou 730000, China
  • Received:2000-11-29 Online:2002-02-24 Published:2002-02-24

Abstract: 4'-Hydroxy 5,7,3'-trimethoxyflavan and 5,4'-dihydroxy-7,3'-dimethoxyflavan were first synthesized by selective methylation, methoxymethylation, condensation, cyclization, deoxygenation from 2,4,6-trihydroxyacetophone and vanillin.

Key words: Flavan, Deoxygenation, Synthesis

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