Potassium Carbonate → 5-(2-(Trifluoromethyl)-5-methoxy-1H-benzo[D]imidazol-1-YL)pyridin-2-amine
반응식
FC(F)(F)C([NH:5][C:6]1[CH:11]=[CH:10][C:9]([N:12]2[C:16]3[CH:17]=[CH:18][C:19]([O:21][CH3:22])=[CH:20][C:15]=3[N:14]=[C:13]2[C:23]([F:26])([F:25])[F:24])=[CH:8][N:7]=1)=O.C([O-])([O-])=O.[K+].[K+]>CO>[CH3:22][O:21][C:19]1[CH:18]=[CH:17][C:16]2[N:12]([C:9]3[CH:10]=[CH:11][C:6]([NH2:5])=[N:7][CH:8]=3)[C:13]([C:23]([F:26])([F:24])[F:25])=[N:14][C:15]=2[CH:20]=1참가 물질
4
반응 조건
- 온도
- 65 °C
실험 절차
To a solution of 2,2,2-Trifluoro-N-[5-(5-methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyridin-2-yl]-acetamide (100 mg, 0.25 mmol) in methanol (20 ml) was added K2CO3 (510 mg, 3.69 mmol). The resultant solution was allowed to stir overnight at 65° C. The reaction progress was monitored by LCMS. After completion, the reaction mixture was quenched by adding 30 ml of H2O. The resultant solution was extracted three times with 30 ml of EtOAc and the organic layers were combined and dried over Na2SO4. After removal of the drying reagent and the solvent, the residue was purified by SGC using 1:3 EtOAc/petroleum ether as eluents to provide 80 mg (79%) of 5-(5-Methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyridin-2-ylamine (gg) as a white solid. 1NMR (400 MHz, CDCl3) δ 8.11 (1H, s), 7.49 (1H, dd, J=2.16 Hz), 7.47 (1H, dd, J=2.16 Hz), 7.33 (1H, dd, J=8.8 Hz), 7.04 (1H, s), 6.69 (1H, dd, J=8.8 Hz), 5.08 (2H, s), 3.87 (3H, s) ppm.