Copper(I)‐Catalyzed Synthesis of Novel 4‐(Trifluoromethyl)‐[1,2,3]triazolo[1,5‐a]quinoxalines via Cascade Reactions of N‐(o‐Haloaryl)alkynylimine with Sodium Azide

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Novel tricyclic 4‐(trifluoromethyl)‐[1,2,3]triazolo[1,5‐a]quinoxalines were readily prepared from N‐(o‐haloaryl)alkynylimines and sodium azide via copper(I)‐catalyzed tandem reactions. This synthetic strategy provides an efficient way to access a library of novel heterocyclic compounds that are of interest in drug discovery.