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