Cobalt-Catalyzed Enantioselective Directed C–H Alkylation of Indole with Styrenes
作者:Pin-Sheng Lee、Naohiko Yoshikai
DOI:10.1021/ol503119z
日期:2015.1.2
A cobalt-chiral phosphoramidite catalyst promotes enantioselective imine-directed C2-alkylation of Boc-protected indoles with styrenes. The reaction affords 1,1-diarylethane products in moderate to good yields with good enantioselectivities under mild conditions. A deuterium-labeling experiment suggests that the enantioselectivity is controlled by both the styrene insertion and the C-C reductive elimination steps.