Metal-Free Oxidative Cyclization of<i>o</i>-Acylphenols for the Construction of 2-Aminobenzofuran-3(2<i>H</i>)-ones
作者:Hui Yu、Weihua Huang、Fengling Zhang
DOI:10.1002/ejoc.201301756
日期:2014.5
An efficient metal-free approach to the synthesis of 2-aminobenzofuran-3(2H)-ones has been developed. Using TBHP as an oxidant and I2 (or TBAI) as catalyst, 2-acylphenols were treated with secondary amines to provide 2-aminobenzofuran-3(2H)-one derivatives in moderate to good yields. A possible reaction pathway for the formation of 2-dimorpholinobenzofuran-3(2H)-one is also discussed herein.