[Br:1]Br.[C:3]([C:6]1[CH:7]=[C:8]([CH:11]=[CH:12][CH:13]=1)[C:9]#[N:10])(=[O:5])[CH3:4].O>CCOCC>[Br:1][CH2:4][C:3]([C:6]1[CH:7]=[C:8]([CH:11]=[CH:12][CH:13]=1)[C:9]#[N:10])=[O:5]Br2 (1 mmol) was dropwise added to a solution of 3-acetylbenzonitrile (1 mmol) in Et2O (15 ml) at 0° C., and then the mixture was stirred at r.t. for 4 h. Water was added, and the mixture was extracted with EtOAc. The organic layer was dried over Na2SO4, and was concentrated to give an oil, i.e., 3-(2-bromoacetyl)benzonitrile, which was directly used for the next step without purification.
불러오는 중…