Ethyl Acetate → HCID 86638633, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-2-((R)-1-azidopropyl)tetrahydrofuran (step 1) (2.11 g, 13.6 mmol) in THF (60 ml) and H2O (10 ml) was added triphenylphosphine (4.28 g, 16.32 mmol). The reaction was heated at 50° C. overnight and then allowed to cool to RT. Sodium bicarbonate (11.42 g, 136 mmol) and Boc-anhydride (4.16 g, 19.04 mmol) were added and the reaction mixture was heated at 40° C. The reaction was allowed to cool to RT and EtOAc was added. The aqueous and organic layers were separated. The aqueous layer was extracted with EtOAc. The combined organic layers were dried (MgSO4), filtered and concentrated in vacuo. The crude product mixture was purified by flash chromatography on silica gel (40 g) eluting with an EtOAc/iso-hexane (gradient 0-40%) to afford the title product; 1H NMR (CDCl3) δ 0.98 (3H, t, CH3), 1.45 (9H, s, (CH3)3), 1.6 (3H, m), 1.9 (3H, m), 3.5 (1H, m), 3.7 (1H, m), 3.85 (2H, m), 4.6 (1H, m).

Provenance & Evidence