Ammonium Chloride → HCID 10712041, compound

Participants

Reaction Steps

A mixture of 5-[4-(methylsulfonyl)phenyl]-1-(4-nitrophenyl)pyrazole-3-carbonitrile (1.1 g), iron powder (1.1 g) and ammonium chloride (0.11 g) in ethanol (20 ml) and water (7 ml) was refluxed for 1 hour. The solvent was evaporated, and the residue was filtered, washed with water and dissolved in hot ethyl acetate. The solution was filtered and the filtrate was concentrated. The residue obtained was recrystallized from ethyl acetate to give crystals of 1-(4-aminophenyl)-5-[4-(methylsulfonyl)phenyl]pyrazole-3-carbonitrile (0.83 g).

Provenance & Evidence