Beckmann rearrangement for the synthesis of derivatives of β- and γ-carbolinones, dihydropyrrolopyridinone and tetrahydroisoquinolinone

Beckmann rearrangement was used as a key step to synthesize six-membered lactams fused to a heteroaromatic or aromatic system.Derivatives of biologically active scaffolds like β-and γcarbolinone, dihydropyrrolopyridinone and tetrahydroisoquinolinone were synthesized using this strategy.