反应详情

To 2-(2-bromopyridin-3-yl)acetaldehyde (864 mg, 4.7 mmol) in THF (10 mL) at 0° C. was added (3-chlorophenyl)magnesium chloride (0.5M in THF, 14 mL, 7.04 mmol). The mixture was stirred at room temperature for 4 hours then treated with ammonium chloride (sat) at 0° C., extracted with ethyl acetate. The combined ethyl acetate layer was washed with brine, dried over magnesium sulfate and concentrated. Purification by chromatography on silica gel gave 2-(2-bromopyridin-3-yl)-1-(3-chlorophenyl)ethanol (490 mg, 35% yield) as white solid.

1. extractionextracted with ethyl acetate
2. washThe combined ethyl acetate layer was washed with brine
3. dry with materialdried over magnesium sulfate
4. concentrationconcentrated
5. customPurification by chromatography on silica gel