反应详情

L-Aspartic acid di-tert-butyl ester hydrochloride (1.0 g, 3.5 mmol) was dissolved in acetonitrile (7 mL), potassium carbonate (0.98 g, 7.1 mmol) and allyl bromide (0.29 mL, 3.4 mmol) were added, and the mixture was stirred at room temperature overnight. The insoluble material was removed by filtration, the filtrate was concentrated under reduced pressure and the obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=95/5) to give the title compound (0.50 g, 1.8 mmol).

1. customThe insoluble material was removed by filtration
2. concentrationthe filtrate was concentrated under reduced pressure
3. customthe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=95/5)