Sodium Bicarbonate → 3-Fluoro-4-(3-methyl-1H-1,2,4-triazol-1-YL)aniline
反応式
[F:1][C:2]1[CH:7]=[C:6]([N+:8]([O-])=O)[CH:5]=[CH:4][C:3]=1[N:11]1[CH:15]=[N:14][C:13]([CH3:16])=[N:12]1.C([O-])(O)=O.[Na+]>C(O)C>[F:1][C:2]1[CH:7]=[C:6]([NH2:8])[CH:5]=[CH:4][C:3]=1[N:11]1[CH:15]=[N:14][C:13]([CH3:16])=[N:12]1参加物
4
反応条件
- 温度
- 70 °C
実験手順
A mixture of 1-(2-Fluoro-4-nitro-phenyl)-3-methyl-1,2,4-triazole (Intermediate 28) (56.6 g, 0.255 mol) and SnCl22H2O (292 g, 1.29 mol) in ethanol (800 ml) was stirred at 70° C. under N2 for 1 hour. After cooling to room temperature, the reaction mixture was poured onto ice and the pH was made slightly basic by addition of NaHCO3 (solid) and extracted with ethyl acetate (3×). The combined organic phase was washed with brine (2×), dried over sodium sulfate and concentrated in vacuo to give the title compound as a colourless solid (48.8 g).