Ammonia → Phthalimide

HRID 1414385Notes

Reaction equation

HRID 1414385 reaction equation
[C:1]1(=O)[O:6][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12.[NH3:12]>>[C:1]1(=[O:6])[NH:12][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12

Participants

3

Reactant 2

HCID 222AmmoniaHCID 6811Phthalic Anhydride

Product 1

HCID 6809Phthalimide

Procedure

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.

Workup

  1. washwashing the off-gases
  2. customfrom the reaction with water

Sources & evidence

ORD record
ord-6a9d6f22f09b4deba2af77fecef5262e
Source dataset
uspto-grants-1977_01
Patent number
US04001273

Reaction notes

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