Highly effective and regioselective Michael addition of indoles to α,β-unsaturated ketones promoted by pentafluorophenylammonium triflate
作者:Samad Khaksar、Seyed Mohammad Vahdat、Fatemeh Rezaee
DOI:10.1016/j.crci.2012.08.002
日期:2013.2
Abstract A simple, inexpensive, environmentally friendly and efficient route for Michael addition of indoles to α,β-unsaturated ketones using pentafluorophenylammonium triflate (PFPAT) as a catalyst is described. Various indole derivatives were synthesized in good to excellent yields. The preparation of PFPAT catalyst from simple and readily available starting materials makes this method more affordable
摘要 描述了一种使用五氟苯基三氟甲磺酸铵 (PFPAT) 作为催化剂将吲哚迈克尔加成到 α,β-不饱和酮的简单、廉价、环保和有效的路线。各种吲哚衍生物以良好到极好的产率合成。由简单易得的起始材料制备 PFPAT 催化剂使该方法更加经济实惠。