Chloroferrate(III) Ionic Liquid: Efficient and Recyclable Catalyst for Solvent-free Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones
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Abstract
A water-tolerant Lewis acidic ionic liquid, [bmim][FeCl4], was found to be an efficient and recyclable catalyst in the synthesis of 4-aryl-dihydropyrimidinones through Biginelli condensation. This method is capable of being scaled up, if desired.
Keywords
Biginelli reaction Dihydropyrimidinones Ionic liquid Lewis acid Green chemistryNotes
Acknowledgments
Financial support for this work from the National Basic Research Program of China (2003CB114402), National Key Technology R&D Program of China (2006BAE01A01-8), and Shanghai Educational Committee are gratefully acknowledged.
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