ZrP2O7 NPs: A recyclable, efficient heterogeneous catalyst for the synthesis of 1,6-diamino-2-oxo-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile derivatives via a multi-component reaction

Authors

• Javad Safaei-Ghomi ¹
• Hossein Shahbazi-Alavi ²
• Mohammad Reza Saberi-Moghadam ³
• Abolfazl Ziarati ⁴

1. Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 87317-51167, I. R. Iran
2. Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, 51167 Kashan, I. R. Iran.
3. Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, 51167, Kashan, I.R. Iran.
4. School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran.

Abstract

ZrP2O7 nanoparticles (NPs) as an efficient catalyst have been used for the preparation of 1,6-diamino-2- oxo-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile derivatives via one-pot coupling of hyrazine hydrate, ethyl cyanoacetate, malononitrile and aromatic aldehydes under reflux conditions in ethanol. Using this method we obtained low reaction times, easy isolation of the targeted molecules, excellent yields.

Keywords

• One-pot
• Multi-component
• ZrP2O7 nanoparticles
• N-amino-2-pyridones
• 2-Dihydropyridines.