反应条件
1: 157 g / PBr3 / pyridine; diethyl ether / 1) -15 deg C, 0.5 h, 2) reflux, 2 h
2: 1) EtONa, 2) KOH / 1) EtOH, 85 - 90 deg C, 4 h, 2) water, reflux, 4 h
3: 91 g / 4 h / 120 - 130 °C
View Scheme
参考文献
Shafiee, A.; Vossoghi, M.; Francisco, C. G.; Freire, R.; Hernandez, R.; et al.
Steroids, 1983 , vol. 41, # 3 p. 285 - 290
