反应详情

温度

100 °C

In a pressure vessel dissolve 1-(3,5-Bis-trifluoromethyl-benzyl)-5-pyridin-3-yl-1H-imidazole-4-carbonitrile (0.043 g, 0.11 mmol) in MeOH (1 mL), add H2O (0.1 mL), and concentrated sulfuric acid (0.3 mL), and stir at 100° C. After 24 h., neutralize with sat. aq. NaHCO3, and extract with EtOAc (3×). Dry over MgSO4, filter, and concentrate. Purify by radial chromatography on silica gel to give the title compound: MS (ES) 430.2 (M+1); 1H NMR (300 MHz, CDCl3): δ 8.68 (ap d, 1H), 8.52 (ap d, 1H), 7.80 (s, 1H), 7.78 (s, 1H), 7.56 (d, J=7.8 Hz, 1H), 7.37 (m, 1H), 7.29 (s, 2H), 5.30 (s, 2H), 3.81 (s, 3H).

1. extractionextract with EtOAc (3×)
2. dry with materialDry over MgSO4
3. filtrationfilter
4. concentrationconcentrate
5. customPurify by radial chromatography on silica gel