Synthesis of Indole-Fused Polycyclics via Rhodium-Catalyzed Undirected C–H Activation/Alkene Insertion
作者:Songjin Guo、Rui Pan、Zhe Guan、Panpan Li、Libo Cai、Siwei Chen、Aijun Lin、Hequan Yao
DOI:10.1021/acs.orglett.9b02198
日期:2019.8.16
Rh(III)-catalyzed undirected C–H activation/alkene insertion to synthesize diversified indole-fused polycyclics has been developed. Intramolecular electrophilic cyclization generated a 3-indolyl rhodium species that went through an aryl-to-aryl 1,4-rhodium migration to realize the C–H activation. The subsequent [4 + 2] carboannulation or hydroarylation of alkenes could be achieved, respectively, by simply
已经开发了一种Rh(III)催化的无向CH活化/烯烃插入物来合成多种吲哚稠合的多环化合物。分子内亲电环化反应生成了3-吲哚基铑物种,该物种经过芳基到芳基的1,4-铑迁移而实现了CH活化。通过简单地调节反应的添加剂,可以分别实现随后的烯烃的[4 + 2]碳环化或加氢芳基化。