反应条件
1: 1.) trifluoromethanesulfonic acid (TFSA) / 1.) CH2Cl2, -40 deg C, 5 min, 2.) -78 deg C to 20 deg C 2: H2O, trifluoromethanesulfonic acid (TFSA) View Scheme
参考文献
Ohwada, Tomohiko; Okabe, Kazuaki; Ohta, Toshiharu; Shudo, Koichi
Tetrahedron, 1990 , vol. 46, # 21 p. 7539 - 7555