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: 87 percent / CH3COONH4 / H2O / 7 h / Heating View Scheme
参考文献
Journal of Heterocyclic Chemistry, , vol. 23, # 3 p. 669 - 672