一种有效的和新颖的方法进行3-硫基咪唑并[1,2的合成开发一个]吡啶以良好至优异的产率通过一个铯2 CO 3促进咪唑并[1,2的直接亚磺酰化一个]吡啶。该反应与多种结构多样的杂芳烃和二硫化物平稳地进行。该协议对环境无害,因为它不含过渡金属催化剂,并使用了基于芳基取代的咪唑鎓类离子液体,而不是挥发性有机溶剂。
Aerobic Multicomponent Tandem Synthesis of 3-Sulfenylimidazo[1,2-<i>a</i>]pyridines from Ketones, 2-Aminopyridines, and Disulfides
作者:Wenlei Ge、Xun Zhu、Yunyang Wei
DOI:10.1002/ejoc.201300905
日期:2013.9
reaction was developed for the synthesis of 3-sulfenylimidazo[1,2-a]pyridinesfrom easily available ketones, 2-aminopyridines, and disulfides without DMSO or peroxide as an oxidant. This three-component tandem reaction process involves the formation of imidazo[1,2-a]pyridines followed by Friedel–Crafts sulfenylation in one pot under mild conditions. Both aryl and alkyl ketones afforded the desired products