1.1: aq. sulfuric acid / diethyl ether / 1 h / Heating
1.2: 7.70 g / p-toluenesulfonic acid / toluene / 3 h / Heating
2.1: 2.18 g / dimethylformamide / 20 h / Heating
View Scheme
参考文献
Van Walree, Cornelis A.; Kaats-Richters, Veronica E. M.; Veen, Sandra J.; Wieczorek, Birgit; Van Der Wiel, Johanna H.; Van Der Wiel, Bas C.
European Journal of Organic Chemistry, 2004 , # 14 p. 3046 - 3056