Synthesis of 2,3-Dialkylindoles from 2-Alkenylphenylisocyanides and Imines by Silyltelluride- and Tin Hydride-Mediated Sequential Radical Reactions
作者:Shigeru Yamago、Hidetoshi Tokuyama、Masashi Kotani、Ayumu Satoh、Tohru Fukuyama
DOI:10.1055/s-2005-871931
日期:——
A new method for the synthesis of 2,3-dialkylindoles is described. The silyltelluride-mediated coupling reaction of imines and 2-alkenylphenylisocyanides selectively occurred at the isocyanide moiety to give the corresponding imidoyltelluride. Tin hydride-mediated intramolecular cyclization of the imidoyltelluride affords 2,3-dialkylindoles in good to excellent combined yields.
本文介绍了一种合成 2,3-二烷基
吲哚的新方法。由
水杨酰
脲介导的
亚胺和 2-烯基苯基
异氰酸酯的偶联反应选择性地发生在异
氰酸基上,从而得到相应的
亚胺酰基
水杨酰
脲。由氢化
锡介导的
亚胺酰
胞苷分子内环化反应生成 2,3-二烷基
吲哚,合并产率从良好到极佳。