Cobalt-Catalyzed Dearomatization of Indoles via Transfer Hydrogenation To Afford Polycyclic Indolines

This is the authors' abstract. We don't add key points for this paper.

A cobalt-catalyzed dearomatization of indoles via transfer hydrogenation with HBpin and H 2 O has been developed. This reaction offered a straightforward platform to access hexahydropyrido[1,2- a ]indoles in high regio- and chemoselectivity. A preliminary reaction mechanism was proposed on the basis of deuterium-labeling experiments, and a cobalt hydride species was involved in the reaction.