反应详情

To a solution of (4,4,5,5,5-pentafluoropentyl)malonic acid diethyl ester (1 g, 3.12 mmol) in tetrahydrofuran (15 ml) was added sodium hydride (175 mg, 4.37 mmol), which was then stirred for 30 min at rt. 1-Bromo-6-chlorohexane (0.7 ml, 4.68 mmol) was added to this reaction mixture and the reaction mixture was refluxed overnight. When the reaction was completed, water was added to the reaction mixture and extracted with ethyl acetate. Then, the organic layer was washed with water and saturated sodium chloride solution. The extract was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography (n-hexane:ethyl acetate=30:1) to give the title compound (760 mg, yield: 56%) as a colorless liquid.

1. temperaturethe reaction mixture was refluxed overnight
2. extractionextracted with ethyl acetate
3. washThen, the organic layer was washed with water and saturated sodium chloride solution
4. dry with materialThe extract was dried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure