反应条件
1: 92 percent / n-BuLi / 1.) -78 deg C, 2.) reflux, 1 h 2: 1.) CuCN, 2.) BF3*Et2O / 1.) Et2O, THF, -78 to -30 deg C, 2.) THF, Et2O, -78 deg C, 10 min; -78 deg C, 2 h 3: 92 percent / ceric ammonium nitrate, H2O / acetonitrile / 1 h / Ambient temperature 4: HCl, H2O / Heating View Scheme
