Photoinduced Cross-Coupling of Aryl Iodides with Alkenes

A protocol
for photoinduced cross-coupling of aryl iodides having
polar π-functional groups or elongated π-conjugation with
alkenes has been developed. The radical cascade mechanism involving
generation of aryl radicals via C–I bond homolysis of photoexcited
aryl iodides and their subsequent addition to alkenes is proposed.
The method enables iodide-selective cross-coupling over other halogen
leaving groups with functional group compatibility on both arene and
alkene motifs.