Regio- and Chemoselective N-1 Acylation of Indoles: Pd-Catalyzed Domino Cyclization to Afford 1,2-Fused Tricyclic Indole Scaffolds
作者:Yongxian Liu、Yuanqiong Huang、Hongjian Song、Yuxiu Liu、Qingmin Wang
DOI:10.1002/chem.201406617
日期:2015.3.27
method for the synthesis of 1,2‐fused tricyclic indole scaffolds by domino cyclization involving a Pd‐catalyzed Sonogashira coupling, indole cyclization, regio‐ and chemoselective N‐1 acylation, and 1,4‐Michael addition is reported. This method provides straightforward access to tetrahydro[1,4]diazepino[1,2‐a]indole and hexahydro[1,5]diazocino[1,2‐a]indole scaffolds.
报道了一种通过多米诺环化反应合成简明方法的方法,该方法涉及多米诺环化反应,该反应涉及Pd催化的Sonogashira偶联,吲哚环化,区域和化学选择性N-1酰化以及1,4-Michael加成。该方法可直接获得四氢[1,4]二氮杂ino [1,2- a ]吲哚和六氢[1,5]二重氮杂酚[1,2- a ]吲哚支架。