Imidazole hydrochloride promoted synthesis of 3,5-disubstituted-1,2,4-oxadiazoles
作者:Xuetong Wang、Yin Wang、Xiaoling Liu、Tingshu He、Lingli Li、Huili Wu、Shangjun Zhou、Dan Li、Siwei Liao、Ping Xu、Xing Huang、Jianyong Yuan
DOI:10.1016/j.tet.2021.132496
日期:2021.11
Imidazole hydrochloride as an additive promotes the reaction of amidoximes and DMA derivatives to generated 3,5-disubstituted-1,2,4-oxadiazoles in low to excellent yields without the use of coupling reagents, oxidants, strong acids or bases and other additives.
咪唑盐酸盐作为添加剂促进酰胺肟和 DMA 衍生物反应生成 3,5-二取代-1,2,4-恶二唑,收率从低到高,无需使用偶联剂、氧化剂、强酸或强碱和其他添加剂。