Erythrosine B Catalyzed Visible‐Light Photoredox Arylation–Cyclization of <i>N</i>‐Alkyl‐<i>N</i>‐aryl‐2‐(trifluoromethyl)acrylamides to 3‐(Trifluoromethyl)indolin‐2‐one Derivatives

Abstract

3‐Trifluoromethylindoline‐2‐one derivatives were prepared in a visible‐light photocatalytic transformation of acrylamides. The arylation–cyclization sequence was initiated by light‐induced aryl radical generation from aryldiazonium salts with the utilization of erythrosine B as an organic photocatalyst.