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Copper-Catalyzed Four-Component Synthesis of Imidazo[1,2-A]Pyridines Via Sequential Reductive Amination, Condensation, and Cyclization Publisher



Allahabadi E1 ; Ebrahimi S1 ; Soheilizad M2 ; Khoshneviszadeh M3 ; Mahdavi M1
Authors
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Authors Affiliations
  1. 1. Drug Design and Development Research Center, Tehran University of Medical Science, Tehran, 14176, Iran
  2. 2. School of Chemistry, College of Science, University of Tehran, PO Box 14155-6455, Tehran, Iran
  3. 3. Medicinal & Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Source: Tetrahedron Letters Published:2017


Abstract

A novel and efficient four-component approach for the synthesis of 2,3-disubstituted imidazo[1,2-a]pyridines is described. The copper-catalyzed reductive amination of 2-bromopyridine by sodium azide followed by sequential condensation and cyclization with aldehydes and isocyanides afforded the corresponding imidazo[1,2-a]pyridines in good yields. © 2016 Elsevier Ltd