METHOD FOR PREPARING SUBSTITUTED 5-AMINO-N-PHENYL-1,2,4-TRIAZOLE-3-SULFONAMIDES

METHOD FOR PREPARING SUBSTITUTED 5-AMINO-N-PHENYL-1,2,4-TRIAZOLE-3-SULFONAMIDES

The present invention relates to a process for preparing 5-amino-N-phenyl-1,2,4-triazole-3-sulfonamides of the formula (I)whereX is halogen, cyano or nitro,R is hydrogen or optionally halogen-substituted C1-C4-alkyl, andn is 1 or 2,by reacting 5-amino-3-chlorosulfonyl-1,2,4-triazole of the formula (...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LANTZSCH, REINHARD, BEIER, CHRISTIAN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to a process for preparing 5-amino-N-phenyl-1,2,4-triazole-3-sulfonamides of the formula (I)whereX is halogen, cyano or nitro,R is hydrogen or optionally halogen-substituted C1-C4-alkyl, andn is 1 or 2,by reacting 5-amino-3-chlorosulfonyl-1,2,4-triazole of the formula (II)with substituted anilines of the formula (III)where X, n and R are as defined for formula (I), in the absence of a solvent.