反应详情

温度

60 °C

To a solution of chloromethyl 5-(N-CBz-L-valyloxy)-2,2-dimethylvalerate (3.85 g, 9 mmol) in acetonitrile (50 mL), was added sodium iodide (5.40 g, 36 mmol). The solution was stirred for 4 h at 60° C. The resulting suspension was filtered and the filtrate was evaporated. The residue was dissolved in CH2Cl2 and washed with aqueous sodium thiosulfate (0.1 M). The organic phase was dried (Na2SO4) and concentrated under reduced pressure. The crude product was column chromatographed (silica gel, 1% MeOH in CH2Cl2), to give 4.26 g of iodomethyl 5-(N-CBz-L-valyloxy)-2,2-dimethylvalerate

1. filtrationThe resulting suspension was filtered
2. customthe filtrate was evaporated
3. dissolutionThe residue was dissolved in CH2Cl2
4. washwashed with aqueous sodium thiosulfate (0.1 M)
5. dry with materialThe organic phase was dried (Na2SO4)
6. concentrationconcentrated under reduced pressure
7. customchromatographed (silica gel, 1% MeOH in CH2Cl2)