Tf2O-Promoted Chemoselective C3 Functionalization of Anthranils with Phenols and Thiophenols

Different chemoselectivities of phenols and thiophenolswere observedin a Tf2O-promoted C3 functionalization of simple anthranils.The reaction of phenols and anthranils gives 3-aryl anthranils viaa C-C bond formation, whereas thiophenols afford 3-thio anthranilsthrough a C-S bond formation. Both reactions have a broad substratescope and tolerate a wide range of functional groups, affording thecorresponding products with specific chemoselectivity.