Journal
SYNTHETIC COMMUNICATIONS
Volume 45, Issue 4, Pages 467-477Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2014.976346
Keywords
Biginelli reaction; dihydropyrimidinone; ionic liquid; microwave; solvent-free condition
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Funding
- National Natural Science Foundation of China [21302013, 51203013]
- Natural Science Foundation of Jiangsu Province [BK2012207]
- Natural Science Foundation of Jiangsu Educational Department [12KJB150001, 12KJB610001]
- Foundation of Jiangsu Laboratory of Advanced Functional Material [12KFJJ008]
- Key University Science Research Project of Jiangsu Province [12KJA150001]
- Prospective joint research project of Jiangsu Province [BY2013041]
- China Postdoctoral Science Foundation [20100480990]
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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.
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