反应详情

To a solution of diethyl acetamidomalonate (277 g) and sodium ethylate (86.6 g) in anhydrous ethanol (850 ml) is added a solution of 2-(4-octylphenyl)ethyl iodide (7) (146 g) in anhydrous tetrahydrofuran (533 ml), and the mixture is refluxed under heating for 6 hr. The reaction mixture is concentrated and partitioned between water and hexane, and the hexane layer is washed three times with water. The obtained hexane layer is dried over anhydrous magnesium sulfate and concentrated. The residue is recrystallized from hexane to give the title compound (8) as colorless crystals. The resulting Compound (8) has the same physico-chemical characteristics as indicated in Example 7.

1. temperaturethe mixture is refluxed
2. temperatureunder heating for 6 hr
3. concentrationThe reaction mixture is concentrated
4. custompartitioned between water and hexane
5. washthe hexane layer is washed three times with water
6. dry with materialThe obtained hexane layer is dried over anhydrous magnesium sulfate
7. concentrationconcentrated
8. customThe residue is recrystallized from hexane