反应条件
1: 70 percent / fuming HNO3, fuming H2SO4 / 1,2-dichloro-ethane / 7 h / 80 - 82 °C 2: PCl5 / 1) PCl5, 1,2-dichloroethane, reflux, 6 h , 2) reflux, 1 h 3: 90 percent / N2H4 / acetonitrile / 5 h / Heating 4: 94 percent / H2 / Raney Ni / ethanol / 2 h / 20 - 50 °C / 3102.9 Torr View Scheme
参考文献
Journal of Heterocyclic Chemistry, , vol. 23, # 3 p. 669 - 672
