Sodium Hydroxide → 5-Fluoro-2-(pyrimidin-2-yl)benzoic acid
反応式
C[O:2][C:3](=[O:17])[C:4]1[CH:9]=[C:8]([F:10])[CH:7]=[CH:6][C:5]=1[C:11]1[N:16]=[CH:15][CH:14]=[CH:13][N:12]=1.[OH-].[Na+]>O>[F:10][C:8]1[CH:7]=[CH:6][C:5]([C:11]2[N:12]=[CH:13][CH:14]=[CH:15][N:16]=2)=[C:4]([CH:9]=1)[C:3]([OH:17])=[O:2]参加物
4
反応条件
- 温度
- 72 °C
実験手順
To a solution of 5-fluoro-2-pyrimidin-2-ylbenzoic acid methyl ester (1.72 g, 7.407 mmol) in 2-methyl-THF (20 mL) was added sodium hydroxide (0.74 g, 18.517 mmol) and water (20 mL). The mixture was heated to 72° C. and stirred for 2 h. The layers were separated and the aqueous layer was extracted with additional MTBE. A 50% HCl(aq) solution was then dripped into the aqueous layer until a pH of 1 was reached. The resulting solids were filtered to provide the desired product as an off-white solid (1.34 g, 83% yield). 1H NMR (400 MHz, CD3OD): 8.82 (d, J=5.0 Hz, 2H), 7.89 (dd, J=8.6, 5.4 Hz, 1H), 7.53 (dd, J=9.0, 2.7 Hz, 1H), 7.39 (m, 2H).