Visible Light Driven Alkylation of C(sp3)-H Bonds Enabled by 1,6-Hydrogen Atom Transfer/Radical Relay Addition.

A visible-light-driven sulfamate esters guided alkylation of unactivated C(sp3)-H bonds enabled by a 1,6-HAT/radical addition cascade is described. Not only structurally diverse Michael acceptors but also styrenes are amenable to this alkylation reaction. Notably, the N-H bonds activation radical relay refrained from prefunctionalization and using excess external oxidants.