Verfahren zur Herstellung von Dihalogenazolopyrimidinen

Verfahren zur Herstellung von Dihalogenazolopyrimidinen

An effective and efficient process for the preparation of a dihaloazolopyrimidine having the structural formula In this process, a malonic acid ester is reacted with a heterocyclylamine to form an intermediate salt, which optionally may be acidified to form a dihydroxyazolopyrimidine; the salt or th...

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Bibliographische Detailangaben
Hauptverfasser: STUMM, KARL-OTTO, PEES, KLAUS-JUERGEN, LIERS, PETER HEINZ RUDI, KRUMMEL, GUENTHER
Format: Patent
Sprache:ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:An effective and efficient process for the preparation of a dihaloazolopyrimidine having the structural formula In this process, a malonic acid ester is reacted with a heterocyclylamine to form an intermediate salt, which optionally may be acidified to form a dihydroxyazolopyrimidine; the salt or the dihydroxyazolopyrimidine is then halogenated.