PROCESS FOR THE PREPARATION OF 2-AMINO-4,6-DICHLOROPYRIMIDINE

PROCESS FOR THE PREPARATION OF 2-AMINO-4,6-DICHLOROPYRIMIDINE

Prepn. of 2-amino-4,6-dichloropyrimidine (I) comprises: (a) reaction of 2-amino-4,6-dihydroxypyrimidine (II) with an excess of phosphorus oxychloride at 20-80 degrees C, in the presence of triethylamine as acid trapping agent; and (b) isolating (I).

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Bibliographische Detailangaben
Hauptverfasser: ALTREITER, JOHANN, SCHWARZ, FRANZ-THOMAS
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Prepn. of 2-amino-4,6-dichloropyrimidine (I) comprises: (a) reaction of 2-amino-4,6-dihydroxypyrimidine (II) with an excess of phosphorus oxychloride at 20-80 degrees C, in the presence of triethylamine as acid trapping agent; and (b) isolating (I).