Synthesis of 7,8-Dihydroxy-5-hydroxymethyl-2-phenyl-chroman-4-one; the Aglycon of Actinoflavoside
作者:Masanori Yamaura、Katsuhiko Suzuki、Takeshi Tsuruga、Kyoko Hiranuma
DOI:10.1055/s-2003-43365
日期:——
The first synthesis of 7,8-dihydroxy-5-hydroxymethyl-2-phenyl-chroman-4-one, the aglycon part of a new-type glucoside, actinoflavoside, was accomplished. The regioselective oxidation of the methyl group at the 5-position in 7,8-dihydroxy-5-methyl-2-phenyl-chroman-4-one derived from 3,4,5-trimethoxytoluene was performed by use of ammonium cerium(VI) nitrate (CAN).
7,8-dihydroxy-5-hydroxymethyl-2-phenyl-chroman-4-one 的第一次合成完成,这是一种新型葡萄糖苷放线黄酮苷的苷元部分。3,4,5-三甲氧基甲苯衍生的 7,8-dihydroxy-5-methyl-2-phenyl-chroman-4-one 中 5-位甲基的区域选择性氧化是通过使用铵铈 (VI ) 硝酸盐 (CAN)。