Potassium Nitrate → Ethyl 2,4-difluoro-5-nitrobenzoate

Participants

Reaction Conditions

Reaction Steps

To a cooled (−5-0° C.) solution of ethyl 2,4-difluorobenzoate (3.4 g; 18.3 mmol) in conc. sulphuric acid (6 ml) was added potassium nitrate (1.94 g; 19.2 mmol) in small portions over one hour −5° C. Following the addition the temperature was allowed to raise to 20° C. over 4.5 hours. The mixture was poured into ice-water with vigorous stirring. The product was filtered off, washed with water and air-dried. Yield: 3.2 g (76%).

Provenance & Evidence