反应详情

温度

90 °C

To a mixture of 2-(4-nitrophenyl)ethanimidamide hydrochloride (6.06 g, 28.12 mmol) and diethyl 2-formylsuccinate (6.54 g, 32.34 mmol) in methanol (100 mL) was added sodium methoxide (28% in methanol, 11.2 mL, 56.25 mmol) at room temperature, and the reaction mixture was stirred at 90° C. overnight. After the cooling to room temperature, the reaction was quenched with acetic acid (3.38 mL, 59.06 mmol) and water (100 mL) was added to. The resulting precipitates were collected by filtration and washed with water and acetone/diisopropyl ether (3/2) to give methyl [4-hydroxy-2-(4-nitrobenzyl)pyrimidin-5-yl]acetate (5.41 g, 64%) as brown solid.

1. additionwas added to
2. customThe resulting precipitates
3. filtrationwere collected by filtration
4. washwashed with water and acetone/diisopropyl ether (3/2)