反应详情

Ethyl 1H-imidazole-2-carboxylate (4 g, 28.5 mmol), p-chlorobenzylchloride (4.38 mL, 34.3 mmol), and sodium carbonate (3.63 g, 34.3 mmol), was dissolved in DMF (8 mL). The solution was stirred at rt for 24 h, at which time water was added and material was extracted with EtOAc. The organic phase was collected, dried over magnesium sulfate, and decanted. Purification accomplished via silica gel flash chromatography (150 g silica, 10% EtOAc/Hexanes to 80% EtOAc/Hexanes.) The title compound was obtained as a clear, yellow-tinted oil. (Yield: 7.28 g, 27.5 mmol, 96%) 1H NMR (400 MHz, CDCl3) 7.25, 7.15, 7.10-7.00, 5.55, 4.34, 1.36

1. additionwas added
2. extractionmaterial was extracted with EtOAc
3. customThe organic phase was collected
4. dry with materialdried over magnesium sulfate
5. customdecanted
6. customPurification
7. customwas obtained as a clear, yellow-tinted oil