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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 45, 2015 - Issue 4
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Original Articles

Efficient and Green Microwave-Assisted Multicomponent Biginelli Reaction for the Synthesis of Dihydropyrimidinones Catalyzed by Heteropolyanion-Based Ionic Liquids Under Solvent-Free Conditions

, , , , , , , & show all
Pages 467-477 | Received 03 Sep 2014, Published online: 21 Dec 2014
 

Abstract

An efficient and green route for the synthesis of dihydropyrimidinones via microwave-assisted Biginelli reaction catalyzed by 3 mol% of heteropolyanion-based ionic liquids under solvent-free conditions has been reported. The practical reaction was found to be compatible with different structurally diverse substrates. Good to excellent yields, short reaction times, and operational simplicity are the main highlights of this protocol. Moreover, the heteropolyanion-based ionic liquids were easily reusable for this Biginelli reaction.

GRAPHICAL ABSTRACT

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