Sodium Iodide → Methyl (S)-2-(Boc-amino)-4-iodobutanoate
Reaktionsgleichung
[CH3:1][O:2][C:3](=[O:16])[C@@H:4]([NH:8][C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:5][CH2:6]Br.[Na+].[I-:18]>CC(C)=O>[CH3:1][O:2][C:3](=[O:16])[C@@H:4]([NH:8][C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:5][CH2:6][I:18]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 70 °C
Versuchsvorschrift
A mixture of (S)-4-bromo-2-tert-butoxycarbonylaminobutyric acid methyl ester (1.19 g, 4.0 mmol) (Example 120, Steps A-D) and NaI (6.0 g, 40.0 mmol) in acetone (25 mL) was heated to 70° C. for 2 hours. The mixture was then cooled to room temperature, concentrated under reduced pressure and partitioned between water (10 mL) and ether (40 mL). The layers were separated and the organic layer was washed with water (10 mL), dried over MgSO4, filtered through Celite, and concentrated under reduced pressure to afford 1.26 g of the product (92% yield).