PROCESS FOR THE PREPARATION OF DRY ALKALI METAL SALTS OF 1,8-NAPHTHALIMIDE

PROCESS FOR THE PREPARATION OF DRY ALKALI METAL SALTS OF 1,8-NAPHTHALIMIDE

Process for the preparation of dry alkali metal salts of 1,8-naphthalimide, which comprises allowing concentrated alkali metal hydroxide solutions to run into solid 1,8-naphthalimide in a molar ratio, at a rate corresponding to the degree of reaction, with vigorous stirring in vacuo at an elevated i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SPIETSCHKA, ERNST, URBAN, MANFRED
Format: Patent
Sprache:eng ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Process for the preparation of dry alkali metal salts of 1,8-naphthalimide, which comprises allowing concentrated alkali metal hydroxide solutions to run into solid 1,8-naphthalimide in a molar ratio, at a rate corresponding to the degree of reaction, with vigorous stirring in vacuo at an elevated internal temperature, and then carrying out drying without intermediate isolation of the alkali metal salt formed.