Hydrochloric Acid → 3,5-Dichlorobenzoic acid

Participants

Reaction Conditions

Reaction Steps

206 parts of 3,5-dichloroanthranilic acid are introduced into 400 parts of ethanol and 400 parts of 36 percent strength by weight hydrochloric acid are then added. A solution of 100 parts of NaNO2 in 150 parts of water is run in at 75° C., resulting in the evolution of nitrogen. The mixture is stirred for one hour at 75° C. and is then cooled, 1,500 parts of water are added and the product is filtered off. 183 parts (89% of theory) of 3,5-dichlorobenzoic acid of melting point 170°-175° C. are obtained.

Provenance & Evidence