1,3-Dibromo-5,5-dimethylhydantoin → 5-Bromo-2-methyl-3-nitrobenzoic acid

Participants

Reaction Steps

To a mixture of 2-methyl-3-nitrobenzoic acid (15 g, 82.80 mmol) in conc. H2SO4 (60 mL), 1,3-dibromo-5,5-dimethyl-2,4-imidazolidinedione (13.07 g, 45.71 mmol) was added and reaction mixture was stirred at room temperature for 5 h. After completion of reaction, reaction mixture was slowly poured onto ice cold water (400 mL). The precipitate was collected by filtration to give the desired compound (21 g, 98.22%).

Provenance & Evidence