反应详情

To a solution of 2-bromo-4-(methylsulfonyl)phenol (243 mg, 0.968 mmol) and K2CO3 (201 mg, 1.45 mmol) in DMF (2 mL) was added CH3I (0.0660 mL, 1.06 mmol). The reaction was stirred at room temperature for overnight, diluted reaction with EtOAc (10 mL) and water (10 mL). The organic layer was separated, and the aqueous layer extracted again with EtOAc (15 mL). The combined organic layers were washed with brine, dried over sodium sulfate, filtered, concentrated, and purified with a silica gel column by ISCO CombiFlash® chromatography eluting with 10%-40% EtOAc/Heptane to afford the desired product (168 mg, 65.5%) as a white solid.

1. additiondiluted
2. customThe organic layer was separated
3. extractionthe aqueous layer extracted again with EtOAc (15 mL)
4. washThe combined organic layers were washed with brine
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. custompurified with a silica gel column by ISCO CombiFlash® chromatography
9. washeluting with 10%-40% EtOAc/Heptane