Visible-Light-Mediated Deoxyalkynylation of Activated Tertiary Alcohols

In this paper, visible-light-induced deoxyalkynylation of activated tertiary alcohols has been successfully performed under mild reaction conditions with ethynylbenziodoxole as the readily available alkynylation reagent. The desired C­(sp3)–C­(sp) coupling can smoothly occur with 4-CzIPN as a photocatalyst, affording a wide range of valuable alkynylation products bearing quaternary carbon centers in 37–84% yields