反应详情

Methyl 2-amino-5-fluorobenzoate (1.0 eq, 8.47 g, 0.051 mol) was reacted with N-Iodo succinimide (1.03 eq, 11.6 g, 0.0515 mol) in acetic acid (100 ml) at room temperature for 20 minutes. The solvent was removed in vacuo. A K2CO3 aqueous solution was added and the compound extracted with ethylacetate. The organic layer was washed with 1M sodium thiosulfate, water and then brine. After drying over Na2SO4, and evaporation of the solvent, methyl 2-amino-5-fluoro-3-iodobenzoate was isolated as a purple solid (14.21 g, 96% yield). 1H NMR (CDCl3, 400 MHz) δ 3.8 (s, 3H), 6.3 (br s, 2H), 7.6 (m, 2H) ppm.

1. customThe solvent was removed in vacuo
2. additionA K2CO3 aqueous solution was added
3. extractionthe compound extracted with ethylacetate
4. washThe organic layer was washed with 1M sodium thiosulfate, water
5. dry with materialAfter drying over Na2SO4, and evaporation of the solvent