反应条件
1: potassium hydroxide / ethanol; water / 12 h / Reflux 2: pyridine / 20 °C 3: sodium hydride / tetrahydrofuran; mineral oil / 2 h / 20 °C 4: lithium aluminium tetrahydride / tetrahydrofuran / 2 h / Inert atmosphere; Reflux 5: boron trichloride / dichloromethane / -78 - 20 °C / Inert atmosphere View Scheme
参考文献
Cheng, Jianjun; Fu, Liqiang; Ling, Chenyu; Yang, Yushe
Heterocycles, 2010 , vol. 81, # 11 p. 2581 - 2592