反应条件
1: 1.) BuLi / 1) THF, -78 deg C, 5 min; 2) THF, -78 deg C, 3 h
2: 90 percent / TsOH*H2O / ethanol / 40 h / Heating
View Scheme
参考文献
Katritzky, Alan R.; Feng, Daming; Lang, Hengyuan
Journal of Organic Chemistry, 1997 , vol. 62, # 12 p. 4131 - 4136