Transition Metal-Catalyzed C—H Trifluoromethylation

In recent years, transition metal-catalyzed C-H trifluoromethylation has been well developed, which is mainly focused on the terminal alkyne C(sp)-H, aromatic and heterocyclic C(sp 2 )-H and allylic C(sp 3 )-H trifluoromethylation.This paper briefly overviews the latest developments in this field, the characteristics of various types of reaction, as well as the facing challenges and future direction.