A one-pot construction of acridones by rhodium catalyzed reaction of N -phenyl-2-(1-sulfonyl-1 H -1,2,3-triazol-4-yl)aniline

A one-pot synthesis of N -alkyl acridone via rhodium catalyzed decomposition of N -phenyl-2-(1-sulfonyl-1 H -1,2,3-triazol-4-yl)aniline and subsequent oxidative C–C bond fragmentation has been developed. 14 examples are presented and the yields range from 30% to 80%.