Transition-metal-free multinitrogenation of amides by C–C bond cleavage: a new approach to tetrazoles
作者:Lian-Hua Li、Zhi-Jie Niu、Ying-Xiu Li、Yong-Min Liang
DOI:10.1039/c8cc06324a
日期:——
regioselective synthesis of 1,5-disubstituted tetrazoles has been developed. By means of electrophilic amide activation, and further C–C bond cleavage and rearrangement, a diverse set of functionalized 1,5-DST derivatives were selectively constructed under mild conditions. As showcased in the mechanisms, the chemoselectivity is easily switched by the selection of the starting materials in the reaction.
开发了一种无金属的全新的一锅多酰胺酰胺,用于化学和区域选择性合成1,5-二取代的四唑。通过亲电酰胺的活化,以及进一步的C–C键裂解和重排,在温和条件下选择性地构建了多种功能化的1,5-DST衍生物。如机理所示,通过选择反应中的起始原料可以容易地切换化学选择性。