Facile synthesis of 5-substituted-1H-tetrazoles catalyzed by reusable nickel zirconium phosphate nanocatalyst

Authors

• Fatemeh Abrishami ¹
• Maryam Ebrahimikia ²
• Fatemeh Rafiee ³

1. Department of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran, Iran.
2. Faculty of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran, Iran.
3. Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran

Abstract

5-Substituted-1H-tetrazoles were synthesized by the [3 + 2] cycloaddition of sodium azide with various nitriles in the presence of nickel zirconium phosphate (NiZrP) as an effective heterogeneous catalyst in dimethylsulfoxide at 120 °C. This method has the advantages of good to high yields, simple methodology and easy work-up. The catalyst can be recovered by centrifuging and reused with good yields. There is no appreciable loss of catalytic activity up to five cycles. All aromatic nitriles with electron-donating group could be accomplished as well as that with electron-withdrawing groups. The structural characteristics of the catalyst are identified by scanning electron microscopy (SEM) and XRD instruments.

Keywords

• Heterogeneous catalyst
• 5-Substituted-1H-tetrazoles
• Nickel zirconium phosphate
• Cycloaddition
• Reusable