Trifluoromethylated Amidrazone Derivatives as Key Compounds for the Synthesis of 4-Aryl-3,5-bis(trifluoromethyl)-4H-1,2,4-triazoles

Abstract A novel, efficient, and solvent-free approach for the synthesis of aryl-3,5-bis(trifluoromethyl)-4 H -1,2,4-triazoles is disclosed via the nucleophilic intramolecular cyclization reaction of trifluoromethylated amidrazone and 2,2,2-trifluoroacetic anhydride. The trifluoromethylated amidrazo...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Synthesis (Stuttgart) 2023-02, Vol.55 (4), p.683-691
Hauptverfasser: Zeinali, Najmeh, Darehkordi, Ali
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Abstract A novel, efficient, and solvent-free approach for the synthesis of aryl-3,5-bis(trifluoromethyl)-4 H -1,2,4-triazoles is disclosed via the nucleophilic intramolecular cyclization reaction of trifluoromethylated amidrazone and 2,2,2-trifluoroacetic anhydride. The trifluoromethylated amidrazone intermediates used in this project are synthesized from the reaction of N -aryl-2,2,2-trifluoroacetimidoyl chloride derivatives and hydrazine hydrate at ambient temperature in excellent yields.
ISSN:0039-7881
1437-210X
DOI:10.1055/a-1933-3655