Acetic Acid → HCID 178524184, compound

Participants

Reaction Steps

15.2 g (0.01 mol) of 3,4-diaminobenzoic acid was dissolved in a mixed solvent composed of 100 ml of acetic acid and 50 ml of water. The solution was cooled to less than 5° C., and a solution prepared by dissolving 10 g (0.14 mol) of sodium nitrite in 30 ml of water was added dropwise with stirring. After the mixture was stirred at a room temperature for 2 hours, the precipitated crystal was filtered off. It was recrystallized from methanol to obtain 5-carboxybenzotriazole 11.7 g (72% yield). Melting point 300° C. (decomposition).

Provenance & Evidence