Visible‐Light‐Enabled Ruthenium‐Catalyzed meta ‐C−H Alkylation at Room Temperature

Abstract

Abstract Visible‐light‐induced ruthenium catalysis has enabled remote C−H alkylations with excellent levels of position control under exceedingly mild conditions at room temperature. The metallaphotocatalysis occurred under exogenous‐photosensitizer‐free conditions and features an ample substrate scope. The robust nature of the photo‐induced mild meta ‐C−H functionalization is reflected by the broad functional group tolerance, and the reaction can be carried out in an operationally simple manner, setting the stage for challenging secondary and tertiary meta ‐C−H alkylations by ruthenaphotoredox catalysis.