反应条件
1: 91 percent / 20 h / Heating
2: 1.) Phosphorus oxychloride, 2.) Sodium perchlorate monohydrate / 1.) anhydr. Dichloromethane, room temp., 20 min, 0 deg C, 10 min, 2.) Dichloromethane/water, 0 deg C, 20 min
3: 73 percent / Sodium sulfide nonahydrate / dimethylformamide; H2O / 2 h / Ambient temperature
4: 65 percent / Pyridine, Hydroxylamine-O-sulfonic acid / ethanol; methanol / 0.5 h / Ambient temperature
View Scheme
参考文献
Lin, Yang-i; Lang, Stanley, A.
Journal of Organic Chemistry, 1980 , vol. 45, # 24 p. 4857 - 4860
