反应详情

To a −78° C. solution of n-butyllithium (2.5 M in diethyl ether, 160 ml, 0.40 mol) in diethyl ether (300 mL) was added slowly 2-bromo-1,3-thiazole (50 g, 0.30 mol). After 30 minutes, acetone (25 g, 0.43 mol) was added dropwise at −78° C. The reaction mixture was then warmed to ambient temperature, quenched with saturated aqueous ammonium chloride solution, and extracted with ethyl acetate. The organic layer was concentrated under reduced pressure, and the residue was purified by chromatography on silica gel (20% ethyl acetate/hexanes) to give 2-(1,3-thiazol-2-yl)propan-2-ol.

1. customquenched with saturated aqueous ammonium chloride solution
2. extractionextracted with ethyl acetate
3. concentrationThe organic layer was concentrated under reduced pressure
4. customthe residue was purified by chromatography on silica gel (20% ethyl acetate/hexanes)