Unprecedented 1,3-<i>tert</i>-butyl migration <i>via</i> the C–N single bond scission of isonitrile: an expedient metal-free route to <i>N</i>-sulfonyl amidines
作者:Debashish Mishra、Arun Jyoti Borah、Pinakinee Phukan、Debojit Hazarika、Prodeep Phukan
DOI:10.1039/d0cc02430a
日期:——
isonitrile with N,N-dibromoaryl sulfonamides and nitrile. The reaction involves the simultaneous C–N single bond scission of isonitrile and the migration of the tert-alkyl group to the adjacent unsaturated nitrogen centre of the nitrile precursor, which eventually results in the formation of N-sulfonyl amidine. This method constitutes a new route for sulfonyl amidine, which does not rely on transition metals
当叔丁基异腈与N,N-二溴芳基磺酰胺和腈反应时,观察到叔丁基发生了前所未有的1,3-迁移。该反应涉及同时进行的异腈C–N单键断裂和叔烷基迁移至腈前体相邻的不饱和氮中心,最终导致N-磺酰基am的形成。该方法构成了不依赖过渡金属的磺酰am的新途径。该方案在底物范围方面显示出显着的优势,并且另外提供了易于合成胍分子的途径。