Preparation of 4,6-di:chloro-pyrimidine from di:hydroxy-pyrimidine

Preparation of 4,6-dichloropyrimidine comprises (a) chlorination of 4,6-dihydroxypyrimidine (I) with phosphorus oxychloride in the absence of base; (b) treatment of the obtained reaction mixture (A) with chlorine in the presence of phosphorus trichloride, so that the PCl3 is always in excess; and (c...

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Bibliographische Detailangaben

Hauptverfasser:	STEFFAN, GUIDO. DR., 51519 ODENTHAL, DE, KAESS, VOLKER. DR., 51375 LEVERKUSEN, DE, CRAMM, GUENTHER. DR., 51375 LEVERKUSEN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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