Bromine → HCID 15257067、化合物
反応式
[Br:1]Br.[CH3:3][CH:4]([CH3:13])[C:5]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][N:8]=1)=[O:6]>C(O)(=O)C>[Br:1][C:4]([CH3:13])([CH3:3])[C:5]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][N:8]=1)=[O:6]参加物
4
反応条件
- 温度
- 105 °C
実験手順
Bromine (2.1 g, 13.4 mmol) dissolved in acetic acid (1 mL) was added slowly to a mixture of 2-methyl-(1-pyridin-2-yl)propan-1-one (2.0 g, 13 mmol) in acetic acid (20 mL) at room temperature. The reaction was heated to 105° C. for 3 h, allowed to cool to room temperature, and concentrated in vacuo to give a dark semisolid. The crude product was partitioned between ethyl acetate and saturated aqueous sodium bicarbonate. The combined organic layer was washed with brine, dried over magnesium sulfate, and concentrated to give 2-bromo-2-methyl-1-(pyridin-2-yl)propan-1-one as a very dark oil (3.0 g, 98%). LCMS calculated for C9H11BrNO (M+H)+: m/z=227.9, 229.9. found: 228.1, 230.1.