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: SCHWARZ, FRANZ-THOMAS. DR., WOLFERN, AT, HUBER, WOLFGANG., SALZBURG, AT, HEU, FERDINAND, LINZ, AT
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.