反应条件
1: 83 percent / LiCl / dimethylformamide / 3.5 h / 60 °C 2: 1.) n-BuLi, hexamethylphosphoric triamide (HMPA) / 1.) hexane, THF, -35 deg C, 8 min View Scheme
参考文献
Takano, Seiichi; Sugihara, Takumichi; Ogasawara, Kunio
Heterocycles, 1990 , vol. 31, # 9 p. 1721 - 1725
