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.
Cu-Catalyzed Mild C(sp2)-H Functionalization Assisted by Carboxylic Acids en Route to Hydroxylated Arenes
J. Am. Chem. Soc. 2013, 135, 9350-9353.
*One of the top 10 most read JACS articles in July 2013