A facile protocol for the synthesis of mono-N-methyl anilines via formimidate intermediates
作者:Nan Sun、Shuai Wang、Weimin Mo、Baoxiang Hu、Zhenlu Shen、Xinquan Hu
DOI:10.1016/j.tet.2010.06.091
日期:2010.8
developed with excellent yields. This protocol relies on a NaBH3(OAc) reduction of formimidate intermediates that are quantitatively generated by treatment of primary substituted anilines with triethyl orthoformate under the catalysis of MCM-41-SO3H mesoporous zeolite. The newly developed procedure was facile, efficient, and environmentally benign.
已经开发了具有优异产率的制备单-N-甲基苯胺的通用方法。该方案依赖于NaBH 3(OAc)还原的亚甲酸酯中间体,该中间体是通过在MCM-41-SO 3 H中孔沸石的催化下用原甲酸三乙酯处理一级取代苯胺来定量生成的。新开发的程序简便,高效且对环境无害。