反应详情

温度

110 °C

Under argon atmosphere, to a solution of 3-(2,5-dimethylpyrrol-1-yl)-1H-pyrazole (3.06 g) prepared according to the same procedures as Preparation 4 in N-methylpyrrolidone (31 ml) were sequentially added cesium carbonate (12.37 g), 8-quinolinol (0.55 g), copper (I) oxide (0.27 g) and 1-chloro-4-iodobenzene (6.79 g) at room temperature, the mixture was stirred at 110° C. for 2 hours. This reaction mixture was cooled to room temperature, and then toluene (30 ml) was added thereto, the mixture was filtered through Celite, and further subjected to elution with toluene. The filtrate was sequentially washed with a 1N aqueous solution of sodium hydroxide, water, a saturated aqueous solution of sodium chloride, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=1/0 to 9/1) to give the titled compound (4.98 g).

1. customat room temperature
2. temperatureThis reaction mixture was cooled to room temperature
3. filtrationthe mixture was filtered through Celite
4. washfurther subjected to elution with toluene
5. washThe filtrate was sequentially washed with a 1N aqueous solution of sodium hydroxide, water
6. dry with materiala saturated aqueous solution of sodium chloride, dried over anhydrous sodium sulfate
7. concentrationconcentrated under reduced pressure
8. customThe resulting residue was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=1/0 to 9/1)