反应详情

温度

0 °C

Methyl 3-aminophenylacetate (2.26 g, 13.7 mmol) was dissolved in dry methylene chloride (20 mL) and cooled to 0° C. Pyridine (2.2 mL, 27.2 mmol) was added followed by dropwise addition of methanesulfonyl chloride (1.3 mL, 16.8 mmol). The mixture was stirred at 0° C. for 1 hour and at room temperature for 3 hours, then poured into 100 mL of saturated sodium bicarbonate solution. The organic layer was washed with saturated sodium bicarbonate (100 mL), 1N HCl (2×100 mL) and brine. Dried over MgSO4. Solvent was evaporated to reveal methyl 3-(methanesulfonyl)phenylacetate. (3.36 g, 100%). 1H NMR (500 MHz, CDCl3) δ 7.32 (1H, dd), 7.2-7.1 (3H, m), 6.57 (1H, s), 3.72 (3H, s), 3.64 (2H, s), 3.02 (3H, s).

1. washThe organic layer was washed with saturated sodium bicarbonate (100 mL), 1N HCl (2×100 mL) and brine
2. dry with materialDried over MgSO4
3. customSolvent was evaporated