反应详情

Dimethylformamide (3 ml) and 60% sodium hydride (0.16 g, 3.9 mmol) were added to imidazole (0.27 g, 3.9 mmol), and the mixture was stirred at room temperature for 10 minutes. Then, 2-(3-chlorophenoxymethyl)-α-methoxyiminobenzyl chloride (0.40 g, 1.3 mmol) was added, and the mixture was stirred at 110° C. for 2 hours. After completion of the reaction, ether (100 ml) was added, and the mixture was washed with brine (80 ml) twice. The ether layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel chromatography (ethyl acetate/n-hexane) and recrystallized from ethyl acetate/n-hexane to give 1-[2-(3-chlorophenoxymethyl)-α-methoxyiminobenzyl]imidazole (0.29 g, 65.3%) as colorless crystals. mp. 96.5-97.5° C.

1. stirringthe mixture was stirred at 110° C. for 2 hours
2. additionwas added
3. washthe mixture was washed with brine (80 ml) twice
4. dry with materialThe ether layer was dried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by silica gel chromatography (ethyl acetate/n-hexane)
7. customrecrystallized from ethyl acetate/n-hexane