CuI-catalyzed and air promoted oxidative cyclization for one-pot synthesis of polyarylated oxazoles
作者:Ping Hu、Qiang Wang、Yizhe Yan、Shuai Zhang、Baiqun Zhang、Zhiyong Wang
DOI:10.1039/c3ob40657a
日期:——
A facile CuI-catalyzed and air promoted oxidative cyclization was developed for the synthesis of polyarylated oxazoles. By virtue of this method, a variety of arylated oxazoles could be easily synthesized from readily available starting materials at room temperature in air.
A novel [3 + 2] cycloaddition/oxidative aromatization sequence via visible light-induced photoredox catalysis is disclosed. It provides a general synthetic route to 2,4,5-trisubstituted oxazoles from easily accessible 2H-azirines and aldehydes under mild reaction conditions. The potential of this strategy was further demonstrated by the rapid synthesis of a cyclooxygenase-2 inhibitor as well as the