反应详情

To a solution of tert-butyl L-phenylalaninate hydrochloride (456 mg) in acetonitrile (8.00 mL) were added potassium carbonate (510 mg) and tert-butyl 3-(bromomethyl)benzoate (400 mg), followed by stirring at room temperature overnight. To the reaction suspension was added water, followed by extraction with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane-ethyl acetate) to obtain tert-butyl N-[3-(tert-butoxycarbonyl)benzyl]-L-phenylalaninate (340 mg).

1. extractionfollowed by extraction with ethyl acetate
2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
3. concentrationconcentrated under reduced pressure
4. customThe residue was purified by silica gel column chromatography (hexane-ethyl acetate)