Direct Assembly of Benzo[e]indoles by Diels-Alder Reaction of Arynes and 2-Vinylpyrroles
作者:Jing Yuan、Xin-Yan Wu、Feng Sha
DOI:10.1002/ejoc.201600334
日期:2016.6
A direct and efficient strategy for the construction of the benzo[e]indole skeleton is developed by Diels–Alder reaction of arynes and easily accessible 2‐alkenylpyrroles. By introducing CHPh2 as the N‐protecting group, the arynes can selectively react with the external vinyl group instead of the pyrrole ring itself in a step‐ and atom‐economical manner.
通过芳烃和易于获得的2-烯基吡咯的Diels-Alder反应,开发了一种直接有效的苯并[ e ]吲哚骨架的构建策略。通过引入CHPh 2作为N保护基,芳烃可以选择性地与外部乙烯基反应,而不是与吡咯环本身反应,这是分步和原子经济的方式。