反应详情

温度

25 °C

A mixture of urea (2.90 g, 48 mmol), ethyl 3-oxobutanoate (5.22 g, 40 mmol), 2-bromo-4-fluorobenzaldehyde (8.12 g, 40 mmol), chlorotrimethylsilane (3.75 g, 35 mmol) and sodium iodide (4.85 g, 35 mmol) in anhydrous acetonitrile (50 mL) was stirred at 25° C. for 12 hours in the dark. The mixture was filtered and the filter cake was washed with a little acetonitrile to give the title compound as a white solid (5.72 g, 40%). The compound was characterized by the following spectroscopic data:

1. filtrationThe mixture was filtered
2. washthe filter cake was washed with a little acetonitrile