Acid-catalyzed synthesis of imidazole derivatives via N-phenylbenzimidamides and sulfoxonium ylides cyclization
作者:Yuan Tian、Mingda Qin、Xueying Yang、Xueguo Zhang、Yafeng Liu、Xin Guo、Baohua Chen
DOI:10.1016/j.tet.2019.04.004
日期:2019.5
A straightforward method to synthesize imidazole derivatives from amidines and sulfoxonium ylides catalyzed by acids is reported in this study. Specifically, catalyzed by trifluoroacetic acid in DCE solvents can improve synthesis efficiency under metal-free conditions. A series of imidazole scaffolds were produced in good to excellent yields.
在这项研究中报道了一种直接的方法,该方法由酸催化的am和sulf基磺酸盐合成咪唑衍生物。具体而言,在DCE溶剂中由三氟乙酸催化可提高无金属条件下的合成效率。生产了一系列咪唑支架,收率良好至优异。