From Phenylhydrazone to 1
<i>H</i>
‐1,2,4‐Triazoles via Nitrification, Reduction and Cyclization
作者:Liqiang Hao、Guodong Wang、Jian Sun、Jun Xu、Hongshuang Li、Guiyun Duan、Chengcai Xia、Pengfei Zhang
DOI:10.1002/adsc.201901563
日期:2020.4.17
cyclization protocol employing cobalt nitrate and 1,2‐dichloroethane to produce substituted 1H‐1,2,4‐triazoles. Notably, 1,2‐dichloroethane serves both the solvent and a hydrogen source for transfer hydrogenation. This methodology works under mild conditions, providing a direct approach for the synthesis of 1H‐1,2,4‐triazoles.
在本文中,我们报告了通过硝化,还原,环化方案,采用硝酸钴和1,2-二氯乙烷进行串联硝化,生成取代的1 H -1,2,4-三唑。值得注意的是,1,2-二氯乙烷既是溶剂又是转移氢化的氢源。这种方法在温和的条件下有效,为合成1 H -1,2,4-三唑提供了直接的方法。