反应详情

温度

0 °C

A solution of 4.86 g (55.18 mmol) of (R)-(−)-3-hydroxytetrahydrofuran in 55 mL of anhydrous DCM (1M) was cooled to 0° C. with an ice bath. Then 8.5 mL (60.7 mmol, 1.1 eq.) of triethylamine and 4.8 mL (60.7 mmol, 1.1 eq.) of methanesulfonyl chloride were added successively. The reaction mixture was stirred for 2 hours at 0° C. and quenched with a saturated solution of sodium bicarbonate (70 mL). The aqueous layer was extracted with DCM (50 mL). Then the organic layers were washed with water (2×50 mL), brine (50 mL) and dried over sodium sulfate. After filtration and concentration in vacuo, a yellowish oil (7.93 g, 86.4%) was obtained corresponding to the methanesulfonic acid(R)-(tetrahydrofuran-3-yl)ester.

1. customquenched with a saturated solution of sodium bicarbonate (70 mL)
2. extractionThe aqueous layer was extracted with DCM (50 mL)
3. washThen the organic layers were washed with water (2×50 mL), brine (50 mL)
4. dry with materialdried over sodium sulfate
5. filtrationAfter filtration and concentration in vacuo