Visible‐Light‐Induced Difluoroacetylation of O‐(Allyloxy)Aryl‐Aldehydes: Access to Difluoroacetylated Chroman‐4‐ones

Abstract A visible‐light photoredox‐catalyzed radical cascade cyclization for the synthesis of various difluoroacetylated chroman‐4‐ones is described in this communication. This reaction features high functional‐group tolerance, mild reaction conditions, and excellent functional‐group compatibility.