反应详情

To a suspension of NaH (60% dispersion in mineral oil, 1.34 g, 0.056 mol) in THF (10 mL), a solution of 5-bromopyridin-2-ol (2.5 g, 0.014 mol) in THF (50 mL) was added and the resulting mixture was stirred at RT for 1 h. To this mixture, iodoethane (10.9 g, 0.07 mol) was added and the mixture was stirred at RT overnight. The mixture was quenched with water and washed with NH4Cl solution. The organic phase was separated, then concentrated in vacuo and the residue was purified by flash chromatography on silica gel (50-100% PE-AE) to afford 5-bromo-1-ethylpyridin-2(1H)-one.

1. stirringthe mixture was stirred at RT overnight
2. customThe mixture was quenched with water
3. washwashed with NH4Cl solution
4. customThe organic phase was separated
5. concentrationconcentrated in vacuo
6. customthe residue was purified by flash chromatography on silica gel (50-100% PE-AE)