trichloride under mild reaction conditions. The method is simple, efficient, and practical. A highlyefficient synthetic strategy for Michaeladdition of indoles and pyrroles to maleimides has been developed using the Lewis acids zinc chloride or aluminum trichloride as the catalyst. The reactions generated 3-substituted indoles and 2-substituted pyrroles in high yields with excellent regioselectivity in the
Direct Synthesis of Fused Thienoindoles via Base Promoted Double C−H Sulfuration with Elemental Sulfur
作者:Shanping Chen、Kai Hu、Wei Feng、Guojiang Mao、Yuxia Li、Guo‐Jun Deng
DOI:10.1002/adsc.202300443
日期:2023.6.13
indoles and elemental sulfur has been reported. The present approach produces a range of structurally valuable fused thienoindoles in 51–78% yield under transition-metal-free conditions, which may have potential applications in pharmaceutical industry and organic functional materials. In this work, the double C−S bonds formation is achieved via base promoted direct sulfuration of C−H bonds with elemental