反应条件
1: 45 percent / 30 h / 120 °C
2: 80 percent / sodium hydride / dioxane / 1.) RT, 10 min, 2.) reflux, 48 h
3: 84 percent / perchloric acid, acetic acid / 1.) 0 deg C, 10 min, 2.) RT, 30 min, 3.) reflux, 60 h
4: 96 percent / thionyl chloride / heptane / 1.) RT, 10 min, 2.) reflux, 1 d
5: 83 percent / tetrahydrofuran / 1.) 0 deg C, 4 h, 2.) RT, 2 d
View Scheme
参考文献
Huszthy; Bradshaw; Krakowiak; Wang; Dalley
Journal of Heterocyclic Chemistry, 1993 , vol. 30, # 5 p. 1197 - 1207
