Purong Zheng, Shichao Lu, Gang Liu*, An Unexpected C-C Cleavage Reaction: Mild and Oxidation Free Access to o-OH and o-NH-Ts Benzoic Acids or Benzoamides, Molecule Diversity, 2011, 15:971-977.

Abstract Catalyzed by DBU or DBN, 2-acetoxy benzofuranones and 2-acetoxy-N-Tos indolin-3-ones, were readily prepared from o-acyl phenols and o-acyl anilines, respectively, reacted with H2O or a range of amines to afford o-OH and o-NH-Tos benzoic acids or benzoamides in moderate to excellent yields.......