反应详情

温度

0 °C

To a solution of 2,5,6-trifluoronicotinonitrile (3.0 g, 19.0 mmol) and triethylamine (2.5 g, 24.7 mmol) in ACN (30 ml) at 0° C. was added 5-isopropoxy-1H-pyrazol-3-amine (2.95 g, 20.9 mmol) in ACN (15 ml). The reaction was stirred at 0° C. for 1 hour, at which point the reaction was diluted with water (50 ml) and extracted with DCM (2×50 ml). The combined organic fractions were dried over Na2SO4, filtered, and then concentrated. The resulting oil was purified by column chromatography (DCM-MeOH=100:1) to give the title compound (0.48 g, 9%). MS: Calcd.: 279. Found: [M+H]+ 280.

1. extractionextracted with DCM (2×50 ml)
2. dry with materialThe combined organic fractions were dried over Na2SO4
3. filtrationfiltered
4. concentrationconcentrated
5. customThe resulting oil was purified by column chromatography (DCM-MeOH=100:1)