反应条件
1: 92 percent / dimethylsulfoxide / 4 h / Heating
2: 2.) NaBH4 / 1.) H2O, MeOH, 2 h, reflux, 2.) r.t., 2 h
3: 85 percent / acetonitrile / 3 h / 60 °C
4: 84 percent Spectr. / CsF / DBU (1,8-diazabicyclo<5,4,0>undec-7-ene) / hexamethylphosphoric acid triamide / 0.5 h / Ambient temperature
View Scheme
