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Oxalic acid dihydrate catalyzed synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives under thermal and solvent-free conditions | ||
Iranian Journal of Catalysis | ||
مقاله 5، دوره 6، شماره 2، شهریور 2016، صفحه 127-131 اصل مقاله (812.95 K) | ||
نوع مقاله: Articles | ||
نویسندگان | ||
Farzaneh Mohamad Pour1؛ Malek Taher Maghsoodlou* 1؛ Reza Heydari1؛ Mojtaba Lashkari2 | ||
1Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, P. O. Box 98135-674 Zahedan, Iran. | ||
2Faculty of Science, Velayat University, Iranshahr, Iran. | ||
چکیده | ||
Oxalic acid dihydrate as a green, mild and efficient catalyst for the one-pot three-component Biginelli synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives from the reaction between β-keto esters (methyl or ethyl acetoacetate), aromatic aldehyde (benzaldehye derivatives) and urea or thiourea under thermal and solvent-free conditions with excellent yields and short reaction time is studied. The most remarkable benefits of this synthetic method include the green methodology, an eco-friendly, inexpensive and non-toxic catalyst, solvent-free conditions, the availability of materials, and a simple operational procedure with no column chromatographic separation. The products were characterized by melting points, IR and 1H NMR spectroscopy. | ||
کلیدواژهها | ||
Oxalic acid.2H2O؛ Green methodology؛ Biginelli reaction؛ 3؛ 4-Dihydropyrimidinone | ||
مراجع | ||
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