反应条件
1: 92 percent / 1.) NaH / 1.) THF, 30 min, room temperature, 2.) THF, 12 h, room temperature 2: 72 percent / 1.) sec-BuLi / 1.) cyclohexane, THF, -105 deg C, 1 h, 2.) cyclohexane, THF, -105 deg C, 1 h 3: 92 percent / Na, liquid NH3 / tetrahydrofuran / 0.25 h View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 38, # 10 p. 2637 - 2643
