<i>N</i>,<i>N</i>-Dimethylformamide as Carbon Synthons for the Synthesis of <i>N</i>-Heterocycles: Pyrrolo/Indolo[1,2-<i>a</i>]quinoxalines and Quinazolin-4-ones
作者:Shichen Li、Jianing Ren、Chengcheng Ding、Yishou Wang、Chen Ma
DOI:10.1021/acs.joc.1c02067
日期:2021.12.3
N-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-a]quinoxalines and quinazolin-4-ones were obtained in moderate to good yields by using elemental iodine without any metal or peroxides. We considered that N-methyl and
N , N-二甲基甲酰胺 (DMF) 作为合成前体,尤其是甲基、酰基和氨基,在杂环合成和功能化中发挥了重要作用。在该协议中,通过使用不含任何金属或过氧化物的元素碘,以中等至良好的收率获得了范围广泛的 pyrrolo/indolo[1,2 - a ]quinoxalines 和 quinazolin-4-ones。我们认为DMF的N-甲基和N-酰基通过不同的机理分别参与并完成反应,这表明DMF的潜力仍有待探索。