Iodine-promoted direct thiolation (selenylation) of imidazole with disulfides (diselenide): A convenient and metal-free protocol for the synthesis of 2-arylthio(seleno)imidazole
作者:Rongnan Yi、Sen Liu、Hongxia Gao、Zhiwu Liang、Xinhua Xu、Ningbo Li
DOI:10.1016/j.tet.2020.130951
日期:2020.2
A convenient and metal-free protocol for the synthesis of 2-arylthio(seleno)imidazoles from imidazoles and disulfides (diselenides) was developed through the direct thiolation (selenylation) of imidazoles promoted by 0.5 equiv. of iodine. This process is scalable and tolerates a wide spectrum of disulfides (diselenides) to deliver products in high yields. Compared with previous methods, this protocol