An Efficient Synthesis of 2-Substituted Benzoxazoles via RuCl3·3H2O Catalyzed Tandem Reactions in Ionic Liquid
作者:Xuesen Fan、Yan He、Yangyang Wang、Xinying Zhang、Jianji Wang
DOI:10.1002/cjoc.201190156
日期:2011.4
An efficientsynthesis of 2‐substituted benzoxazoles through RuCl3·3H2Ocatalyzed, air oxidized tandemreactions of 2‐aminophenols and aldehydes in [bmim]BF4 was developed. This synthetic strategy has such advantages as mild reaction conditions, cost‐free oxidant, readily available starting materials, and recyclable catalyst and solvent. As an application, it was successfully used in the synthesis of