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

Joan Gallardo-Donaire and Ruben Martin 

 J. Am. Chem. Soc., 2013, 135 (25), pp 9350–9353 

DOI: 10.1021/ja4047894