反应条件
1: 44 percent / HCl / methanol / 10 h / Heating 2: 1) NaH (60percent in paraffin) / 1) THF, 0 deg C, a) 30 min, b) n-pentane, 30 min, 2) 60 deg C, 20 min 3: TsOH / tetrahydrofuran / 0.08 h / 28 °C View Scheme
参考文献
Kirmse, Wolfgang; Kund, Klaus
Journal of Organic Chemistry, 1990 , vol. 55, # 8 p. 2325 - 2332