反应条件
1: 1.) n-BuLi / 1.) THF, hexane, RT, 0.5 h, 2.) THF, hexane, reflux, 1 h
2: 1.) LDA / 1.) THF, -78 deg C, 1 h, 2.) THF, from -78 deg C to RT, 1 h
3: 92 percent / pyridine / CH2Cl2 / 12 h / Ambient temperature
4: 1 M BBr3 / 1.) CH2Cl2, -78 deg C, 1 h 2.) CH2Cl2, -78 deg C to RT, 1 h
View Scheme
参考文献
Witiak, Donald T.; Tehim, Ashok K.
Journal of Organic Chemistry, 1987 , vol. 52, # 11 p. 2324 - 2327
