2-Chloro-5-nitrobenzenesulfonamide → 2-Amino-5-nitrobenzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-chloro-5-nitrobenzenesulfonamide (Example 17a, 0.88 g, 3.72 mmol), ammonium carbonate (0.88 g, 9.16 mmol), and copper(II)sulfate (0.175 g, 1.10 mmol) in concentrated aqueous ammonium hydroxide solution (4.4 mL) was heated for 4 h at 120° C. in a pressure reaction vessel. The mixture was allowed to cool to 25° C. and the resulting solid was collected by vacuum filtration, washed with water and dried to afford the desired product, 2-amino-5-nitrobenzenesulfonamide (0.295 g, 1.36 mmol, 36.5% yield) as a tan solid.

Provenance & Evidence