反应详情

To a solution of 6-methoxyhexahydrofuro[3,2-b]furan-3-ol (1.03 g, 6.43 mmol) in anhydrous DCM (30 mL) were added N,N-diethylethanamine (1.3 mL, 9.4 mmol) and methanesulfonyl chloride (0.58 mL, 7.5 mmol). The reaction was stirred at rt for 6 h. The reaction was quenched with NaHCO3 (sat, 50 mL), and then extracted with EtOAc (80 mL×3). The organic layers were dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography (PE/EtOAc (v/v)=2/1) to give the title compound as colorless oil (1.1 g, 71.9%).

1. customThe reaction was quenched with NaHCO3 (sat, 50 mL)
2. extractionextracted with EtOAc (80 mL×3)
3. dry with materialThe organic layers were dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customThe residue was purified by silica gel column chromatography (PE/EtOAc (v/v)=2/1)