Unexpected hydrobromic acid-catalyzed C-C bond-forming reactions and facile synthesis of coumarins and benzofurans based on ketene dithioacetals.
Yuan
Hongjuan
H
Department of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China.
Wang
Mang
M
Liu
Yingjie
Y
Wang
Lili
L
Liu
Jun
J
Liu
Qun
Q