Hydrochloric Acid → 1,4-Benzenedicarboxamide, N1,N4-dichloro-

Participants

Reaction Steps

16.4 grams (0.10 mols) of terephthalamide were suspended in 500 ml. of a 17% by weight hydrochloric acid solution and heated in an enamel autoclave at 34°C. Then, by means of a dosing bulb and under intensive mixing, 22.8 grams (0.32 mols) of liquid chlorine was introduced into the autoclave. With water cooling, the reaction temperature was maintained at about 35°C. The reaction pressure amounted to 10 atm. After 5 minutes, the reaction from the autoclave, filtered and the residue washed with 200 ml. of water. The residue was then dried under vacuum at 70°C. There resulted 22.6 grams (97% of theory) of N,N'-dichloro-terephthalamide.

Provenance & Evidence