Photocatalytic Radical Coupling of Organoborates with -Halogenated Electron-Poor Olefins

Herein, we report the visible-light-mediated addition of organoborates to alpha-halogenated electron-poor olefins enabled by an environmentally benign metal-free catalyst. The method accommodates a variety of boronic acid derivatives as well as alkenes and delivers the corresponding saturated alpha-halo-derivatives in up to 90% yields. The obtained products are high-value building blocks in organic synthesis, allowing for a variety of follow-up transformations.