[4 + 1] Cyclization of benzohydrazide and ClCF2COONa towards 1,3,4-oxadiazoles and 1,3,4-oxadiazoles-d5
作者:Ya Wang、Shiqiang Mu、Xin Li、Qiuling Song
DOI:10.1016/j.cclet.2021.08.089
日期:2022.3
A facile synthesis of 1,3,4-oxadiazoles and 1,3,4-oxadiazoles-d5 via [4 + 1] cyclization of ClCF2COONa with non-amine compounds containing amino groups is developed. Of note, this is the first time that halofluorinated compounds are used as C1 synthon to construct deuterated nitrogen-heterocyclic compounds. The current protocol features simple operation, readily accessible raw materials, wide substrate
1,3,4-恶二唑和1,3,4-恶二唑-d 5 通过ClCF 2 COONa 与含有氨基的非胺化合物的[4 + 1] 环化而简便地合成。值得注意的是,这是首次将卤代氟化合物作为C1合成子构建氘代氮杂环化合物。目前的协议具有操作简单、原料易得、底物范围广和产品价值高等特点