trifluoromethylsulfonic anhydride; sodium hydrogencarbonate in dichloromethane
5 h; Ambient temperature;
参考文献
Martinez, A. Garcia; Alvarez, A. Martinez; Vilar, E. Teso; Fraile, A. Garcia; Hanack, M.; Subramanian, L. R.
Tetrahedron Letters, 1989 , vol. 30, # 5 p. 581 - 582