A Palladium/Light System Combined with Hanztsch Ester: Radical Vinylation of Alkyl Iodides with Vinyl Bromides

Abstract Radical vinylation of alkyl iodides with vinyl bromides proceeds smoothly with a combined Pd/light/Hanztsch ester system. In this reaction system, the Hanztsch ester acts as an effective reducing reagent of Pd II to Pd 0 that generates key alkyl radicals via single electron transfer (SET) with alkyl iodides upon photo‐excitation.