反应详情

Triethylamine (4.92 mL, 35.32 mmol), followed by ethyl bromoacetate (3.74 mL, 33.72 mmol) were added to a stirring slurry of 4-(2-mercapto-1H-imidazol-1-yl)-1-naphthonitrile (8.07 g, 32.11 mmol) in dichloromethane (60 mL) and stirring continued for 3 h. The mixture was washed with aqueous HCl solution (0.2M 100 mL), 50% saturated sodium chloride solution (50 mL), dried over sodium sulfate, filtered, and concentrated. Hexanes (100 mL) were added and the mixture concentrated to provide ethyl 2-(1-(4-cyanonaphthalen-1-yl)-1H-imidazol-2-ylthio)acetate as a light-tan solid (10.47 g, (97%).

1. washThe mixture was washed with aqueous HCl solution (0.2M 100 mL), 50% saturated sodium chloride solution (50 mL)
2. dry with materialdried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. additionHexanes (100 mL) were added
6. concentrationthe mixture concentrated