Synthesis of Pyrrolo[1,2-a]indoles via (3+2)-Annulations of (Aza)-para-Quinone Methides with Indoles
作者:Xiang-Zhi Zhang、Bao Qiong Li、Zong-Wang Qiu、Gui-Hua Wen、Ai-Jun Ma、Peng-Jin Bao、Ji-Yuan Du、Xue-Tao Xu、Na Feng
DOI:10.1055/s-0040-1707348
日期:2020.12
mediated (3+2)-annulation of (aza)-para-quinone methides, generated in situ from propargylic alcohols and indoles, has been developed involving 1,8-conjugate addition/5-endo annulation cascade. This protocol affords a mild and effective method for the construction of synthetically important and structurally interesting functionalized pyrrolo[1,2-a]indoles.
摘要 介导的高效和简单的布朗斯台德酸(3 + 2)的(氮杂)-annulation -对-quinone甲基化物,从炔丙醇和吲哚在原位产生的,已经开发了涉及1,8-共轭加成/ 5-内切环级联。该协议提供了一种温和而有效的方法,用于构建具有重要合成意义的重要结构化吡咯并[1,2- a ]吲哚。