反应详情

A solution of ethyl 3-bromo-5-nitrobenzoate (4.4 g, 16 mmol) and tin(II) chloride (40 g, 170 mmol) in ethanol (125 ml) was heated at 80° C. for 2 hours. The mixture was cooled to room temperature and the solvent evaporated. The residue was suspended in ethyl acetate (250 ml) and washed with 2M NaOH (2×250 ml). The organic phase was washed with water, dried and evaporated to give the title compound as a yellow solid (3.6 g, 92%)

1. customthe solvent evaporated
2. washwashed with 2M NaOH (2×250 ml)
3. washThe organic phase was washed with water
4. customdried
5. customevaporated