反应条件
1: conc. hydrochloric acid / 4 h / Heating
2: p-toluenesulfonic acid / 4 h / Heating
3: sodium ethoxide / diethyl ether
4: tetrabutylammonium hydrogen sulfate, aq. sodium hydroxide / CH2Cl2 / 0.33 h
5: aq. sulfuric acid / 140 °C
View Scheme
参考文献
Arnarp, Jan; Enzell, Curt; Petersson, Kurt; Pettersson, Tore
Acta Chemica Scandinavica, Series B: Organic Chemistry and Biochemistry, 1986 , vol. 40, # 10 p. 839 - 854
