反应条件
1: 82 percent / 55percent NaH / dimethylformamide / -10 deg C, 30 min, RT, 1 h 2: 74 percent / iPr2NH, 1.6M n-butyllithium / tetrahydrofuran; hexamethylphosphoric acid triamide; hexane / 2 h / -78 °C 3: 6M HCl / 12 h / 110 °C / sealed View Scheme
参考文献
Yonezawa, Yasuchika
Heterocycles, 1997 , vol. 45, # 6 p. 1151 - 1159
