反应条件
1: 80 percent / Et3N / butan-1-ol / 48 h / Heating 2: 1.) conc. aq. HCl, NaNO2, 2.) NaOAc, aq. AcOH / 1.) 0 deg C, 15 min, 2.) RT, 24 h 3: 22 percent / Zn, aq. AcOH / ethanol / 4 h / Heating 4: 87 percent / NaNO2, aq. AcOH / 3 h / 0 - 5 °C 5: 78 percent / 1N aq. HCl / 3 h / Heating View Scheme
参考文献
Sznaidman; Beauchamp
Journal of Heterocyclic Chemistry, 1996 , vol. 33, # 6 p. 1605 - 1610
