Silver(I)‐ and Base‐Mediated formal [4+3] Cycloaddition of
<i>in Situ</i>
generated 1,2‐Diaza‐1,3‐dienes with
<i>C,N</i>
‐Cyclic Azomethine Imines: An Efficient Protocol for the Synthesis of Tetrazepine Derivatives
作者:Zefei Li、Shuaikang Li、Tianjiao Kan、Xinyue Wang、Xin Xin、Yunlei Hou、Ping Gong
DOI:10.1002/adsc.202000398
日期:2020.7.16
A silver(I)‐ and base‐mediated formal [4+3] cycloaddition reaction of in situ generated 1,2‐diaza‐1,3‐dienes with in situ formed C,N‐cyclic azomethine imines has been developed. This protocol provided an efficient method for the synthesis of biologically important 1,2,4,5‐tetrazepine derivatives with a wild substrate scope and excellent functional group tolerance in moderate to excellent yields.
已经开发了一种由银(I)和碱介导的正式[4 + 3]环加成反应,该反应原位生成了1,2-二氮杂1,3-二烯与原位形成的C,N-环偶氮甲亚胺。该方案提供了一种有效的方法,用于合成具有重要底物范围和出色的官能团耐受性(中等至优异的产率)的重要的1,2,4,5-四氮杂pine生物衍生物。