反应条件
1: 84 percent / NH2OH, K2CO3 / H2O; CH2Cl2 / 2.5 h / Heating 2: 83 percent / NaNO2, CH3COOH / H2O / 24 h / 0 °C 3: 1.) CH3ONa / 1.) DMF, RT, 1 h, 2.) DMF, 80 deg C, 5 h 4: 1.) CuCl2*2H2O, 2.) NaBH4 / 1.) ethanol, 0 deg C, 1 h, 2.) ethanol, 0 deg C 45 min. 5: 95 percent / 12 N HCl / 0 °C View Scheme
参考文献
Heterocycles, , vol. 20, # 9 p. 1731 - 1735
