Cu-Catalyzed Mild C(sp~2)-H Functionalization Assisted by Carboxylic Acids en Route to Hydroxylated Arenes

摘要

A formal Cu-catalyzed C(sp~2)-H hydrox-ylation assisted by benzoic acids is described. The procedure is characterized by its mild reaction conditions and wide substrate scope utilizing simple and cheap Cu catalysts, thus becoming a user-friendly and operationally simple protocol for C(sp~2)-H hydroxylation.