تفاعل #170715

معادلة التفاعل

3-(2,5-dimethylpyrrol-1-yl)-1H-pyrazole

8-quinolinol

1-chloro-4-iodobenzene

cesium carbonate

→

titled compound

المردود 96.5%

1-(4-Chlorophenyl)-3-(2,5-dimethylpyrrol-1-yl)-1H-pyrazole

المردود 96.5%

المذيبات

N-methylpyrrolidone

toluene

ظروف التفاعل

المعالجة

1. 1
   أخرىat room temperature
2. 2
   درجة الحرارةThis reaction mixture was cooled to room temperature
3. 3
   ترشيحthe mixture was filtered through Celite
4. 4
   غسيلfurther subjected to elution with toluene
5. 5
   غسيلThe filtrate was sequentially washed with a 1N aqueous solution of sodium hydroxide, water
6. 6
   تجفيفa saturated aqueous solution of sodium chloride, dried over anhydrous sodium sulfate
7. 7
   تركيزconcentrated under reduced pressure
8. 8
   أخرىThe resulting residue was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=1/0 to 9/1)

الإجراء التجريبي

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).

المصدر