反应详情

温度

-5 °C

77.4 ml 2 mol/L trimethylsilyldiazomethan in hexane was added to 5,6-dimethyl-pyridine-2-carboxylic acid in 150 mL methanol and 600 mL dichlormethane at −5° C. The reaction was stirred 0.5 h at −5° C. and then warm up to RT. The solvent was removed and the residue was purified by chromatography on Silica (cyclohexane 7: ethyl acetate 3) to give 12.8 g desired product.

1. temperaturewarm up to RT
2. customThe solvent was removed
3. customthe residue was purified by chromatography on Silica (cyclohexane 7: ethyl acetate 3)