反应条件
1: 1.) CuCl2*2H2O, 2.) NaBH4 / 1.) ethanol, 0 deg C, 1 h, 2.) ethanol, 0 deg C 45 min. 2: 95 percent / 12N HCl / 0 °C 3: H3PO4 / 3 h / Heating 4: 90 percent / Et3N / 1,2-dimethoxy-ethane / 15 h / Ambient temperature View Scheme
参考文献
Heterocycles, , vol. 20, # 9 p. 1731 - 1735
