Regioselective Alkylative Cross-Coupling Of Remote Unactivated C(Sp(3))-H Bonds

The functionalization of unactivated C(sp(3))-H bonds poses a significant challenge due to their ubiquity and relative similarity in most organic frameworks. Herein, we describe the use of a combined photoredox and nickel catalytic system for the regio-selective C(sp(3))-C(sp(3)) coupling of unactivated C(sp(3))-H bonds and alkyl bromides. Positional selectivity is dictated by a 1,5-hydrogen atom transfer (HAT) reaction by a pendent amide. Interception of this radical by a Ni catalyst allows distal alkylation to occur in good yield and excellent selectivity.