反应条件
1: 65 percent / 1 h / 200 °C 2: 86 percent / CuCl2*2H2O, NaBH4 / ethanol / 0.75 h / 0 °C 3: 44 percent / 37percent aq. HCl / 5 h / 60 °C 4: 94 percent / 2N aq. HCl, H2 / 5percent Pd/C / methanol / 4 h / 60 °C / 3420 Torr 5: 70 percent / triethylamine / 1,2-dimethoxy-ethane / 20 h / Ambient temperature View Scheme
参考文献
Journal of Heterocyclic Chemistry, , vol. 23, # 1 p. 189 - 190
