Copper‐Catalyzed Multicomponent Reactions: Synthesis of Fused 1,2,3‐Triazolo‐1,3,6‐triazonines

摘要: We describe herein our results on the synthesis of fused 1,2,3-triazolo-1,3,6-triazonines through a copper-catalyzed multicomponent reaction. The named products were obtained in moderate to excellent yields by reaction 2-azidobenzaldehydes, substituted diaminobenzenes and range terminal alkynes, using catalytic amount copper iodide, Et3N as base DMSO at 100 °C. This methodology proved be efficient for combinatorial new medium-sized N-heterocyclic rings with potential applications biological studies.