Synthesis of furo[3,4-c]quinolin-3(1H)-one derivatives through TMG catalyzed intramolecular aza-MBH reaction based on the furanones

The first TMG catalyzed intramolecular aza-MBH reaction based on furanone derivatives was developed and successfully applied in the synthesis of a novel fused heterocyclic scaffold, furo[3,4-c]quinolin-3(1H)-ones in moderate to good yields.