反应条件
1: 42 percent / n-BuLi / hexane; tetrahydrofuran / 1.) ice cooling, 30 min, 2.) room temperature, 14 h 2: n-BuLi / 1.) hexane, THF, -78 deg C, 0.5 h, 2.) -78 deg C, 1 h, room temperature, 1 h 3: 65 percent / NH2OH*HCl, NaOAc / ethanol / 14 h / Heating 4: 96 percent / NaH / dimethylformamide / 1.) ice cooling, 30 min, 2.) room temperature, 1 h 5: 39 percent / 1,2-dichloro-benzene / 12 h / Heating View Scheme
参考文献
Heterocycles, , vol. 28, # 1 p. 275 - 282
