Merging Visible-Light Catalysis for the Direct Late-Stage Group-16-Trifluoromethyl Bond Formation.

The use of visible light activation/photoredox chemistry for the generation of radical-centered chalcogen-CF3 has gained widespread interest in the last past three years. Its subsequent reactivity for the synthesis of new chalcogen-CF3 -containing building blocks gained much attention. To date several methodologies have been developed addressing several challenges in modern organofluorine chemistry and enabled substantial progress in substrates scope and reaction conditions. This review describes these advancements with a particular focus on the reaction mechanisms.