反应条件
1: 1.) AlCl3, 2.) CuBr2 / 1.) 75 deg C, 20 h, 2.) acetonitrile, reflux, 5 h 2: 83 percent / DBU / tetrahydrofuran / 4 h / Ambient temperature 3: 1.) NaH / 1.) THF, 0 deg C, 30 min, 2.) 0 deg C, 3 h 4: 78 percent / n-BuLi / tetrahydrofuran; hexane / 7 h / -78 - 20 °C 5: 81 percent / NaI, trimethylsilyl chloride / acetonitrile / 3 h / Ambient temperature View Scheme
参考文献
Jung; Koreeda
Journal of Organic Chemistry, 1989 , vol. 54, # 24 p. 5667 - 5675
