反应条件
1: 1.) NaNO2, H2O/7.3percent H2SO4 / 1.) 0 deg C, 2 h; 2.) toluene, reflux, 15 min
2: 5.5 g / triethylamine / diethyl ether / 2 h / -10 °C
3: H2S/triethylamine / diethyl ether / 0.83 h / Ambient temperature
4: 85.3 percent / p-toluenesulfonic acid / acetic acid / 1.5 h / 90 - 95 °C
5: K2CO3 / methanol; H2O / Heating
View Scheme
参考文献
Maeda; Ohsugi; Fujioka; Hirose
Chemical and Pharmaceutical Bulletin, 1983 , vol. 31, # 10 p. 3424 - 3445
