反应条件
1: 96 percent / Na / toluene / 96 h / Heating
2: 97 percent / diethylzinc / toluene / 16 h / Ambient temperature
3: 73 percent / FeCl3 / dimethylformamide / 16 h / 60 °C
4: 1.) potassium tert-butoxide / 1.) DME, 60 min, 2.) DME,CH2Cl2, 30 min
View Scheme
参考文献
Pirrung, Michael C.; Webster, Nicholas J. G.
Journal of Organic Chemistry, 1987 , vol. 52, # 16 p. 3603 - 3613