反应详情

To a solution of 7-fluoroquinoline-6-carbaldehyde (4.0 g, 22.84 mmol) in THF (30 ml) at 0° C., was added methylmagnesium bromide (2.85M in THF, 8 mL, 22.84 mmol) dropwise. The solution was stirred for 2 h, and NH4Cl was added to quench the reaction. The resulting mixture was extracted with EtOAc and the organic layer was washed with saturated NaHCO3 and NH4Cl, and dried over Na2SO4, filtered and concentrated to give the crude product, which was purified with Analogix gel silica using hexanes:EtOAc to afford 1-(7-fluoroquinolin-6-yl)ethanol (i). LCMS (method B): [MH]+=192, tR=1.84 min.

1. customto quench
2. customthe reaction
3. extractionThe resulting mixture was extracted with EtOAc
4. washthe organic layer was washed with saturated NaHCO3 and NH4Cl
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated
8. customto give the crude product, which
9. customwas purified with Analogix gel silica