Iron-Catalyzed, Microwave-Promoted, One-Pot Synthesis of 9-Substituted Xanthenes by a Cascade Benzylation−Cyclization Process
作者:Xiaobing Xu、Xiaolei Xu、Hongfeng Li、Xin Xie、Yanzhong Li
DOI:10.1021/ol902489a
日期:2010.1.1
An efficient iron-catalyzed, microwave-promotedcascadebenzylation−cyclization of phenols is reported. Benzyl acetates, benzyl bromides, and benzyl carbonates are suitable benzylating reagents. The reactions proceed to afford both 9-aryl and 9-alkyl xanthene derivatives in good to high yields using FeCl3 as the catalyst under MW irradiation conditions.