1: With 2-fluoro-pyridine; trifluoromethylsulfonic anhydride in dichloromethane
T=-78 - 0°C; Inert atmosphere;
2: With triethylsilane in dichloromethane
T=0°C; Inert atmosphere;
3: With citric acid in tetrahydrofuran; dichloromethane; water
T=45°C; 2 h; chemoselective reaction;
参考文献
Pelletier, Guillaume; Bechara, William S.; Charette, Andre B.
Journal of the American Chemical Society, 2010 , vol. 132, # 37 p. 12817 - 12819