Organophotoredox‐Catalyzed Functionalization of Spiro‐Dihydroquinazolinones with Morita–Baylis–Hilman Adducts

An organophotoredox‐catalyzed, chemo‐ and regio‐selective C–C bond formation between spiro‐dihydroquinazolinones and Morita–Baylis–Hilman adducts has been reported. This transformation proceeds via an aromatization driven deconstructive formation of an alkyl radical and its subsequent selective addition at SN 2 ′ position of MBH acetates, resulting in alkene‐ containing quinazolinones. Mild reaction conditions, good substrate‐scope and further modification of resultant products are the noteworthy accomplishments of this methodology.