Visible Light‐Induced Selective Generation of Radicals from Organoborates by Photoredox Catalysis

Abstract A new strategy for the generation of carbon‐centered radicals via oxidation of alkyl‐, allyl‐, benzyl‐ and arylborates by visible‐light‐driven single electron transfer (SET) photoredox catalysis has been established. The generated radicals smoothly react with TEMPO and electron‐deficient alkenes to afford CO and CC coupling products, respectively. In this radical initiating system, cyclic organo(triol)borates turn out to be useful radical precursors.