Regio- and Stereoselective Synthesis of 1,2,3-Trisubstituted Indanes from Diarylmethanols and Allylamides through Iron(III) Chloride Hexahydrate
作者:Yali Li、Lingjuan Zhang、Zongyao Zhang、Jianbin Xu、Yixiao Pan、Conghui Xu、Lingxian Liu、Zengguang Li、Zhiyong Yu、Huanrong Li、Lijin Xu
DOI:10.1002/adsc.201600165
日期:2016.6.30
An efficient method for the highly regio‐ and stereoselective synthesis of 1,2,3‐trisubstituted indanes from diarylmethanols and allylamides through iron(III) chloride hexahydrate‐catalyzed intermolecular [3+2] cycloaddition reaction is reported. A range of 1,2,3‐trisubstituted indanes were prepared in good to excellent yields with excellent stereoselectivities for various combinations of diarylmethanols
报道了一种通过六水合氯化铁(III)催化的分子间[3 + 2]环加成反应从二芳基甲醇和烯丙基酰胺高度区域选择性和立体选择性地合成1,2,3-三取代的茚满的有效方法。对于二芳基甲醇和烯丙基酰胺的各种组合,制备了一系列1,2,3-三取代的茚满,具有良好的收率和优异的立体选择性。溶剂的选择对于催化至关重要。机理研究表明,该催化过程涉及苄基阳离子的产生,并且该反应通过最初形成二芳基甲基醚而进行。该反应的特点是容易获得起始原料,高水平的功能耐受性和简单的实验操作。