反应条件
1: PBr3 / diethyl ether / 1.5 h / 0 °C 2: 86 percent / 1.) hexamethylphosphoric triamide, BuLi / tetrahydrofuran; hexane / 2 h / -70 - 0 °C 3: 1.) EtOH, Na; 2.) ceric ammonium nitrate / 1.) THF, 2 h, -20 to 0 deg C; 2.) CH2Cl2, CH3CN, H2O, 5 min, 0 deg C View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 32, # 10 p. 3959 - 3967
