,-Dimethylformamide as Carbon Synthons for the Synthesis of -Heterocycles: Pyrrolo/Indolo[1,2-]quinoxalines and Quinazolin-4-ones.

,-dimethylformamide (DMF) as synthetic precursors contributing especially the methyl, acyl, and amino groups has played a significant role in heterocycle syntheses and functionalization. In this protocol, a wide range of pyrrolo/indolo[1,2-]quinoxalines and quinazolin-4-ones were obtained in moderate to good yields by using elemental iodine without any metal or peroxides. We considered that -methyl and -acyl of DMF participate and complete the reaction separately through different mechanisms, which displayed potential still to be explored of DMF.