METHOD OF CLEANING N,N-DISUBSTITUTED NITROAROMATIC AMINES

METHOD OF CLEANING N,N-DISUBSTITUTED NITROAROMATIC AMINES

Processes for the preparation of nitrosamine-free N,N-disubstituted nitroaromatic amines by degradation of their nitrosamine components formed during their preparation, and by stabilization of the products against renewed formation of nitrosamines, by treating the amines in liquid or molten form wit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KONRAD ALBREKHT,DE, RUDOLF KHAJNRIKH,DE
Format: Patent
Sprache:eng ; rus
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Processes for the preparation of nitrosamine-free N,N-disubstituted nitroaromatic amines by degradation of their nitrosamine components formed during their preparation, and by stabilization of the products against renewed formation of nitrosamines, by treating the amines in liquid or molten form with a sulfonic acid, where necessary in the presence of inert organic solvents or diluents.