Metal-Free Formation of 2-Substitued Benzoxazoles with Amides and Esters
Fangshao Li, Jing Xiao, Xiaofang Wu, Xiaoyi Wang, Jinfeng Deng, Zilong Tang
Chinese Journal of Organic Chemistry . 2022, (6): 1778 -1785 .  DOI: 10.6023/cjoc202111031