反应条件
1: sulfuric acid 2: triethylamine; 4-(N,N-dimethlyamino)pyridine / N,N-dimethyl-formamide 3: potassium tert-butylate / tetrahydrofuran 4: triethylamine; sulfur trioxide pyridine complex / dichloromethane 5: tetrahydrofuran / -78 °C 6: Grubb's 2nd generation catalyst / dichloromethane / |Reflux 7: dipyridinium dichromate / N,N-dimethyl-formamide / 12 h / 20 °C / |Molecular sieve View Scheme
参考文献
Deng, Lisheng; Zhang, Li; Yao, Yuan; Wang, Cong; Redell, Michele S.; Dong, Shuo; Song, Yongcheng
MedChemComm, 2013 , vol. 4, # 5 p. 822 - 826