Ammonia → Phthalimide

Participants

Reaction Steps

U.S. Pat. No. 2,668,326 describes a method of reacting phthalic anhydride and ammonia batchwise and washing the off-gases from the reaction with water or a high-boiling hydrocarbon as the solvent. It is advantageous to recycle the wash fluid, resulting in accumulation of suspended phthalimide. This suspension is also used for cooling and quenching the hot reaction mixture.

Provenance & Evidence