Concise Synthesis of Pyrrolophenanthridine Alkaloids Using a Pd-Catalyzed Biaryl Coupling Reaction with Regioselective C-H Activation
作者:Takashi Harayama、Akihiro Hori、Hitoshi Abe、Yasuo Takeuchi
DOI:10.3987/com-03-9883
日期:——
The concise synthesis of the pyrrolophenanthridine alkaloids such as anhydrolycorine, assoanine, anhydrolycorin-7-one, and oxoassoanine, was achieved using the Pd-catalyzed biaryl coupling reaction of 1-(2-halobenzyl)-2,3-dihydroindole by applying the regioselective C-H activation method with intramolecular coordination of the benzylamino group to Pd.
采用 Pd 催化的 1-(2-卤代苄基)-2,3-二氢吲哚的联芳基偶联反应, 实现了吡咯菲啶类生物碱如 anhydrolycorine、assoanine、anhydrolycorin-7-one 和 oxoassoanine 的简明合成。苄氨基与 Pd 分子内配位的 CH 活化方法。