反应条件
1: 85.1 percent / H2O / Heating 2: 1) 48percent hydrobromic acid, thiourea, 2) aqueous sodium hydroxide / 1) reflux, 9 h, 2) reflux, 3 h View Scheme
参考文献
Wagner, Barbara J.; Doi, Joyce Takahashi; Musker, W. Kenneth
Journal of Organic Chemistry, 1990 , vol. 55, # 13 p. 4156 - 4162