反应条件
1: 70 percent / NaH / tetrahydrofuran
2: 34 percent / Et3N, PhNCO / benzene / 1.) room temperature, 1 h, 2.) reflux, 1 h
3: 23 percent / acetic acid, Raney-Nickel, H2 / methanol; H2O / 3 h
4: BF3*Et2O, DMS / CH2Cl2 / 2.5 h / Ambient temperature
5: PTSA / benzene
View Scheme
参考文献
Yadav, J S; Rao, E Sreenivasa
Synthetic Communications, 1988 , vol. 18, # 18 p. 2315 - 2324