Recent Advances in Visible Light‐Promoted Ring Opening of Aryl Cyclopropanes

The unique properties of cyclopropanes have made them valuable reagents in modern organic synthesis. Among the various substitution patterns of cyclopropanes, aryl cyclopropanes represent a significant subclass with considerable synthetic potential. In recent years, visible light‐mediated photoredox catalysis has emerged as a powerful strategy for enabling efficient and sustainable synthetic transformations. This method has successfully activated aryl cyclopropanes, which avoids the use of potent oxidants or electrophiles that were commonly used in earlier techniques. Several approaches have been developed for the ring‐opening reactions of aryl cyclopropanes using visible light. This review provides a detailed summary of recent advancements in the visible light‐induced ring opening of aryl cyclopropanes, with a particular emphasis on the underlying reaction mechanisms.