反应条件
1: 1.) HCl / 1.) 50 deg C, 18 h, 2.) Ph2O, 170-180 deg C, 1 h
2: 2 N NaOH / 1.5 h / Heating
3: diphenyl ether / Heating
4: POCl3 / 1 h / 100 °C
View Scheme
参考文献
De; Byers; Krogstad
Journal of Heterocyclic Chemistry, 1997 , vol. 34, # 1 p. 315 - 320