[I:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[Si:9](Cl)([C:12]([CH3:15])([CH3:14])[CH3:13])([CH3:11])[CH3:10].N1C=CN=C1>ClCCl>[C:12]([Si:9]([O:8][C:5]1[CH:6]=[CH:7][C:2]([I:1])=[CH:3][CH:4]=1)([CH3:11])[CH3:10])([CH3:15])([CH3:14])[CH3:13]4-Iodophenol (1.0 g, 4.55 mmol) was dissolved in dichloromethane (5 mL). tert-Butyldimethylsilyl chloride (0.685 g, 4.55 mmol) and imidazole (0.309 g, 4.55 mmol) were added. The reaction was stirred overnight at room temperature. The reaction mixture was partitioned between water (30 mL) and dichloromethane (30 mL). The organic layer was removed and the aqueous layer was extracted with dichloromethane (30 mL). The organic layers were combined, dried and concentrated, and the residue was purified by chromatography (0-10% EtOAc/hexanes) to give the title compound as a light yellow oil (1.45 g, 94%).
Wird geladen…
