Metal and Oxidant Free Construction of Substituted‐ and/or Polycyclic Indoles: A Useful Alternative to Bischler and Related Syntheses
作者:Giacomo Mari、Lucia De Crescentini、Gianfranco Favi、Stefania Santeusanio、Fabio Mantellini
DOI:10.1002/ejoc.202000845
日期:2020.9.7
wide range of substituted indoles, including complex polycyclic‐architectures were easily assembled by means of a Amberlyst 15H catalyzed synthesis that employs 1,2‐diaza‐1,3‐dienes and anilines. The metal and oxidant free methodology proposed here is characterized by good yields, total and predictable regioselectivity, and the ability to provide electron withdrawing substituted indoles.
通过使用1,2-二氮杂-1,3-二烯和苯胺的Amberlyst 15H催化合成,可以轻松组装各种取代的吲哚,包括复杂的多环结构。本文提出的无金属和氧化剂的方法的特点是产率高,总的和可预测的区域选择性以及提供吸电子取代的吲哚的能力。