反应条件
1: triphenylphosphine; diethylazodicarboxylate / tetrahydrofuran / 12 h / 70 °C / Inert atmosphere 2: potassium carbonate / dimethyl sulfoxide / 4 h / 40 - 50 °C 3: palladium 10 on activated carbon; hydrogen; triethylamine / methanol / 7 h / 55 °C 4: methanol; sodium tetrahydroborate / dichloromethane / 2.5 h / 20 °C 5: 4-(N,N-dimethlyamino)pyridine; triethylamine / dichloromethane / 12 h / 20 °C View Scheme
参考文献
Heterocycles, , vol. 75, # 11 p. 2803 - 2808
