Sulfuric Acid → HCID 178524186, compound

Participants

Reaction Conditions

Reaction Steps

3,4-diaminobenzoic acid (5 g, 32.8 mmol) was dissolved in AcOH (30 ml) and this mixture cooled to 5° C. To this mixture NaNO2 solution (2.7 g in 8 ml water) was added followed by 2 ml sulphuric acid. Reaction mixture was allowed to stir for 90 mins. After that, reaction mixture quenched with ice and solid that obtained was filtered and washed with water to obtain the title compound (4.5 g) as a brown solid.

Provenance & Evidence