反应条件
1: 95 percent / n-BuLi, BF3*Et2O 2: 85 percent / Na2HPO4, sodium amalgam / methanol / 1.5 h / -30 °C 3: 1.) oxalyl chloride, Me2SO, 2.) Et3N / 1.) CH2Cl2, -60 deg C, o.5 h, 2.) 15 min 4: 91 percent / aq. HCl / acetonitrile / 1 h / Ambient temperature 5: 59 percent / t-BuPK / tetrahydrofuran / 1 h / Ambient temperature View Scheme
参考文献
Marczak, S.; Wicha, J.
Synthetic Communications, 1989 , vol. 19, # 3and4 p. 633 - 640
