反应条件
1.1: orthoacetic acid trimethyl ester; pyridinium p-toluenesulfonate / dichloromethane / 5 h / 20 °C / Inert atmosphere 1.2: 3 h / 20 °C / Inert atmosphere 1.3: 2 h / 20 °C / Inert atmosphere 2.1: diisobutylaluminium hydride / hexane; toluene / 0.33 h / -78 °C / Inert atmosphere 3.1: N,N-dimethyl-formamide / 4 h / Reflux; Inert atmosphere 4.1: 4-(N,N-dimethlyamino)pyridine; triethylamine / tetrahydrofuran / 3 h / 0 °C / Inert atmosphere 5.1: hydrogenchloride; methanol / 5 h / 20 °C / Inert atmosphere 6.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / -78 °C / Inert atmosphere 6.2: -78 - 0 °C / Inert atmosphere 7.1: potassium tert-butylate / tetrahydrofuran / 0.5 h / 0 °C / Inert atmosphere 7.2: 0.5 h / 0 °C 8.1: methanol; potassium carbonate / 1.5 h / 20 °C / Inert atmosphere View Scheme
参考文献
Sarkar, Shaheen M.; Taira, Yuko; Nakano, Ayako; Takahashi, Keisuske; Ishihara, Jun; Hatakeyama, Susumi
Tetrahedron Letters, 2011 , vol. 52, # 8 p. 923 - 927
