Facile and Rapid Synthesis of 5-Substituted 1H-Tetrazoles VIA a Multicomponent Domino Reaction Using Nickel(II) Oxide Nanoparticles as Catalyst
作者:J. Safaei-Ghomi、S. Paymard-Samani
DOI:10.1007/s10593-014-1625-x
日期:2015.2
2-(1H-Tetrazol-5-yl)acrylonitrile derivatives were synthesized through multicomponent domino Knoevenagel condensation/1,3-dipolar cycloaddition reaction of carbonyl compounds, malononitrile, and sodium azide in the presence of NiO nanoparticles as a highly efficient catalyst. This method has the advantage of very short reaction times, high yields, simple methodology, and easy work-up. The catalyst
Catalyst-free, aqueous and highly diastereoselective synthesis of new 5-substituted 1H-tetrazoles via a multi-component domino Knoevenagel condensation/1,3 dipolar cycloaddition reaction
An approach for the synthesis of new 5-substituted-tetrazoles via multi-component domino Knoevenagel condensation/1,3 dipolar cycloaddition reaction of carbonyl compounds, malononitrile and sodium azide in water without assistance of any catalyst has been reported. This general protocol provides a wide variety of 5-substituted 1H-tetrazoles in good yields under mild reaction conditions. (C) 2011 Elsevier Ltd. All rights reserved.