1.1: sodium ethoxide / ethanol / 4 h / Heating
2.1: sodium acetate / 3 h / Heating
2.2: sodium hydroxide / ethanol; H2O / 15 h / 20 °C
2.3: H2SO4 / 17 h / Heating
View Scheme
参考文献
Gabbutt, Christopher D.; Hepworth, John D.; Heron, B. Mark; Thomas, David A.; Kilner, Colin; Partington, Steven M.
Heterocycles, 2004 , vol. 63, # 3 p. 567 - 582