Formal Total Synthesis of Hybocarpone Enabled by Visible-Light-Promoted Benzannulation
作者:Wei Chen、Renyu Guo、Zhen Yang、Jianxian Gong
DOI:10.1021/acs.joc.8b02595
日期:2018.12.21
total synthesis of hybocarpone was achieved in eight steps from commercially available 1,2,4-trimethoxybenzene. Key transformations include a visible-light-promoted benzannulation to construct the key α-naphthol intermediate and a modified CAN-mediated dimerization/hydration cascade sequence to generate the vicinal all-carbon quaternary centers in a stereocontrolled manner. The total synthesis of boryquinone
从商业上可获得的1,2,4-三甲氧基苯可通过八个步骤完成羟卡酮的正式全合成。关键的转变包括:可见光促进的苯环形成关键的α-萘酚中间体;以及修饰的CAN介导的二聚/水合级联序列,以立体控制的方式生成邻近的全碳四元中心。硼醌的全合成也可以通过七个步骤完成。