Construction of the flavones and aurones through regioselective carbonylative annulation of 2-bromophenols and terminal alkynes

Jianming Liu, Muwen Liu, Yuanyuan Yue, Ningfei Zhang, Yuanli Zhang, Kelei Zhuo

Tetrahedron Letters

Volume 54, Issue 14, 3 April 2013, Pages 1802–1807

http://dx.doi.org/10.1016/j.tetlet.2013.01.043