反应详情

A mixture of 2-bromo-1,5-dinitro-3-fluorobenzene (100 mg, 0.38 mmol, 1 equiv) and iron powder (64 mg, 1.14 mmol, 3 equiv) in 3 mL of HOAc was stirred at room temperature for 90 minutes. The reaction mixture was diluted with EtOAc (20 mL) and saturated NaHCO3 (to ca. pH 7-8). The organic layer was separated and evaporated under vacuum. The crude residue was purified by column chromatography on silica gel using EtOAc/hexanes (1:4) as eluent to give 47 mg of 2-bromo-3-fluoro-5-nitroaniline (52%).

1. customThe organic layer was separated
2. customevaporated under vacuum
3. customThe crude residue was purified by column chromatography on silica gel