Document Type : Original Article

Authors

Department of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, Iran

Abstract

A nano-SnO2 catalyzed environmentally benign strategy for the synthesis of 2-amino-4H-pyran derivatives via the multi-component reaction between aryl aldehydes, β-dicarbonyl compounds and malononitrile in aqueous media under reflux conditions in excellent yields is established. The structures of the synthesized compounds were confirmed using IR, 1H-NMR. The elemental analysis and morphology of the catalyst was characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). This one-pot three component protocol provides an efficient improved pathway for the synthesis of pyrans in the terms of short reaction times, simple working up procedure and recyclability of catalyst.

Graphical Abstract

Synthesis of 2-amino-4H-pyran derivatives in aqueous media with nano-SnO2 as recyclable catalyst

Keywords

Main Subjects

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