反应条件
1: 1.) p-toluenesulfonic acid (PTSA), 2.) PTSA / 1.) C6H6, DMF, 50 deg C, 19 h, 2.) C6H6, reflux, 2.5 h
2: 90.2 percent / p-toluenesulfonic acid monohydrate (PTSA) / benzene / 5 h / Heating
View Scheme
参考文献
Wha Suk Lee; Hoh Gyu Hahn. Kee Dal Nam
Journal of Organic Chemistry, 1986 , vol. 51, # 14 p. 2789 - 2795
