反应详情

温度

120 °C

To a solution of 5-amino-1H-pyrazole-3-carboxylic acid [2-(4-chloro-phenyl)-ethyl]-amide (100 mg, 0.4 mmol, 1 eq) in acetic acid (2 mL) was added 2-ethoxymethylene-malonic acid diethyl ester (80 μL, 0.44 mmol, 1.1 eq). The mixture was heated at 120° C. for 16 h in a sealed tube. After cooling, the precipitate was filtered and washed with ethanol (2×10 mL) to afford the expected compound as white powder (55 mg, 38% yield).

1. temperatureAfter cooling
2. filtrationthe precipitate was filtered
3. washwashed with ethanol (2×10 mL)