反应条件
1: 51 percent / H2SO4 / ethanol; tetrahydrofuran / 1.) r.t., 3 h, 2.) reflux, 10 h
2: n-BuLi / tetrahydrofuran; cyclohexane / 1.) -78 deg C, 2.) 20 deg C, 30 min
3: AcOH / 0.5 h / Heating
View Scheme
参考文献
Katritzky, Alan R.; Lang, Hengyuan; Wang, Zuoquan; Zhang, Zhongxing; Song, Huimin
Journal of Organic Chemistry, 1995 , vol. 60, # 23 p. 7619 - 7624