Synthesis of Monofluorocyclohexene via Photocatalytic Defluorinative [4+2] Annulation of gem‐Difluoroalkenes with Unactivated Alkenes

Abstract Herein, a photocatalytic system for defluorinative [4+2] annulation of gem ‐difluoroalkenes with unactivated alkenes is realized. This protocol was compatible with a broad scope of unactivated alkenes, affording the diverse monofluorocyclohexene products in 30–95% yields. Furthermore, the value of this method was demonstrated by the gram‐scale synthesis, late‐stage functionalization and synthesis of various valuable and complex monofluorocyclohexene derivatives.