[CH3:1][CH2:2][Mg+].[Br-].[Br:5][C:6]1[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[C:7]=1[CH:8]=[O:9].[NH4+].[Cl-]>C1COCC1>[Br:5][C:6]1[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[C:7]=1[CH:8]([OH:9])[CH2:2][CH3:1]A solution of EtMgBr (35 mL, 35 mmol) in TH-F (1 M) is added dropwise to a solution of 2-bromo-6-fluoro-benzaldehyde (7 g, 34.5 mmol) in THF at −78° C. The mixture is stirred for 1 hour at −78° C. Saturated NH4Cl is added dropwise to the mixture which is subsequently warmed to room temperature and stirred for 1 hour. The organic layer is separated, extracted with THF (3×100 mL. The combined organic layers are washed with brine, dried and solvent is removed in vacuo. The crude product is purified by flash chromatography (5% EtOAc/hexanes) to obtain 1-(2-bromo-6-fluoro-phenyl)-propan-1-ol.
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