反应条件
1: triethylamine / CHCl3 / 1.) RT, 16 h, 2.) reflux, 6 h 2: 4-toluenesulfonic acid / acetonitrile / 48 h / Ambient temperature 3: triethylamine, acetic acid / methanol 4: 91 percent / aq. base 5: 61 percent / H2SO4 / 8 h / Heating View Scheme
参考文献
Australian Journal of Chemistry, , vol. 42, # 6 p. 813 - 821
