Sulfuric Acid → HCID 178418385, compound

Participants

Reaction Conditions

Reaction Steps

108.0 g (1.0 mol) of o-diaminobenzene, 75.9 g (1.1 mol) NaNO2, 205 g water and 10.0 g (0.03 mol) benzotriazolium sulfate were charged to a pressure reactor. The reaction was heated to 205° C. for 4 hours. The reactor was cooled to 50° C. and neutralized to pH 6 with 50% H2SO4. The contents were poured into a preheated separatory funnel and separated. The resulting oil was dried overnight at 150° C. to yield 117 g (98%) of benzotriazole.

Provenance & Evidence