Divergent Total Synthesis of Taiwaniaquinones A and F and Taiwaniaquinols B and D
作者:Jun Deng、Ruofan Li、Yijie Luo、Jian Li、Shupeng Zhou、Yongjian Li、Jingyu Hu、Ang Li
DOI:10.1021/ol400717h
日期:2013.4.19
A divergent approach was developed toward the total synthesis of taiwaniaquinoids. An advanced intermediate 5a with trans NB ring junction was concisely assembled by employing a Bi(OTf)(3)-catalyzed cationic cyclization and a Wolff-type ring contraction as key steps. This common intermediate was readily converted to racemic taiwaniaquinones A and F and taiwaniaquinols B and D, respectively.