Cu-Catalyzed Mild C(sp²)–H Functionalization Assisted by Carboxylic Acids en Route to Hydroxylated Arenes

Abstract

A formal Cu-catalyzed C­(sp²)–H hydroxylation 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(sp²)–H hydroxylation