Sulfuric Acid → 2-Nitrobenzenediazonium Bisulfate

Participants

Reaction Conditions

Reaction Steps

To a 500 mL three-necked flask fitted with a mechanical stirrer are added 65 g of concentrated sulfuric acid and 41.4 g of 2-nitroaniline. After heating to 75° C., 164 g of water is added at which time the temperature is reduced to 0° C. Sodium nitrite (54 g, 40 wt %) is added over two hours while maintaining the solution at 0-5° C. The diazonium salt solution (292 g) is then filtered and stored at −15° C. until use.

Provenance & Evidence