Metal-Free C(sp3)-H Allylation via Aryl Carboxyl Radicals Enabled by Donor-Acceptor Complex.

The first aryl carboxyl radical generation by the donor-acceptor complex with N-acyloxyphthalimides and Hantzsch esters is reported. Regio- and chemoselective C(sp3)-H bond allylation is enabled by aryl carboxyl radicals with visible light irradiation under mild and metal-free conditions.