Ammonium → 2-Carbamoyl-3-nitrobenzoic acid

Participants

Reaction Conditions

Reaction Steps

30 g (0.155 mol) of 3-nitrophthalic anhydride are introduced in portions into 180 ml of conc. ammonium solution and the resulting solution is heated at 100° C. with stirring for 45 min. The mixture is evaporated in a rotary evaporator and co-distilled twice with toluene, and the residue is dried in a high vacuum. It is stirred with EA, and the beige precipitate is filtered off with suction and dried in vacuo over P2O5. 31.8 g of the title compound are obtained.

Provenance & Evidence