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Decatungstodivanadogermanic heteropoly acid (H6GeW10V2O40.22H2O): A green and reusable heterogeneous catalyst for the synthesis of Biginelli-type 3,4-dihydropyrimidin-2-(1H)-ones/thiones | ||
Iranian Journal of Catalysis | ||
مقاله 3، دوره 3، شماره 4، اسفند 2013، صفحه 203-209 اصل مقاله (515.35 K) | ||
نویسندگان | ||
Srinivasa Rao Jetti* ؛ Divya Verma؛ Shubha Jain | ||
Laboratory of Heterocycles, School of Studies in Chemistry & Biochemistry, Vikram University, Ujjain, Madhya Pradesh 456010, India. | ||
چکیده | ||
Decatungstodivanadogermanic acid (H6GeW10V2O40.22H2O) was used as a green heterogeneous catalyst for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones from one-pot three-component cyclocondensation reaction of a β-ketoester, an aldehyde and urea/thiourea under solvent-free conditions is reported. This method provides an efficient and much improved modification of the original Biginelli reaction reported in 1893, in terms of high yields, and short reaction times. It has the ability to allow a wide variety of substitutions in all three components. | ||
کلیدواژهها | ||
Biginelli reaction؛ Heteropolyacid؛ Decatungstodivanadogermanic acid؛ 3؛ 4-dihydropyrimidin-2-(1H)-ones/thiones؛ Heterogeneous catalysis | ||
مراجع | ||
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