Synthesis of 2-Amino-3,5-dicarbonitrile-6-thiopyridines Using Silica-bonded N-Propyldiethylenetriamine as a Heterogeneous Solid Base Catalyst

Authors

Alireza Hosseini Persian Gulf University

Khodabakhsh Niknam Persian Gulf University

Abstract:

Silica-bonded N-propyldiethylenetriamine (7) is employed as a recyclable heterogeneous solid base catalyst for the synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines through pseudo four-component condensation reaction between aromatic aldehydes, malononitrile, and 2-amino-thiophenol in refluxing ethanol. Silica-bonded N-propyldiethylenetriamine showed much the same efficiency when used in consecutive reaction runs.

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Journal title

Organic Chemistry Research

volume 3 issue 1

pages 16- 24

publication date 2017-03-01

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Keywords

2-Amino-3 5-dicarbonitrile-6-thiopyridines Heterogeneous catalysts Solid bases Synthesis Multi-component reactions

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