VERFAHREN ZUR HERSTELLUNG VON REINEM 4,6-DICHLORPYRIMIDIN

VERFAHREN ZUR HERSTELLUNG VON REINEM 4,6-DICHLORPYRIMIDIN

Prepn. of pure 4,6-dichloropyrimidine comprises reaction of 4,6-dihydroxypyrimidine with an excess of phosphorous-oxychloride in the presence of a 2-4C alkyl substd. trialkylamine which acts as an acid trap and catalyst. Pref. the trialkylamine is triethylamine.

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Bibliographische Detailangaben
Hauptverfasser: HUBER WOLFGANG MAG. DR, HEU FERDINAND, SCHWARZ FRANZ-THOMAS. DR
Format: Patent
Sprache:ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Prepn. of pure 4,6-dichloropyrimidine comprises reaction of 4,6-dihydroxypyrimidine with an excess of phosphorous-oxychloride in the presence of a 2-4C alkyl substd. trialkylamine which acts as an acid trap and catalyst. Pref. the trialkylamine is triethylamine.