Synthesis of 4,7-Difunctionalized Indoles via Imino Exchange and Sulfinyl Migration
作者:Xiaohua Li、Lei Li、Weiyi Wang、Qiuqin He、Renhua Fan
DOI:10.1021/acs.orglett.9b04257
日期:2020.2.7
7-difunctionalized indoles from 2-alkynycyclohexadienimines, sulfinamides, and nucleophiles (amines or alcohols) was developed. The process involves imino exchange, cascade cyclization/1,4-nucleophilic addition/aromatization, and 1,3-migration of the sulfinyl group. The 7-sulfinyl group is easy to convert into the sulfonyl or the thioether group through a simple oxidation and reduction reaction.
开发了一种从2-炔基环己二亚胺,亚磺酰胺和亲核试剂(胺或醇)快速组装4,7-双官能化的吲哚的方法。该过程涉及亚氨基交换,级联环化/ 1,4-亲核加成/芳构化以及亚磺酰基的1,3-迁移。7-亚磺酰基易于通过简单的氧化和还原反应转化为磺酰基或硫醚基。