Decatungstodivanadogermanic heteropoly acid (H6GeW10V2O40.22H2O): A green and reusable heterogeneous catalyst for the synthesis of Biginelli-type 3,4-dihydropyrimidin-2-(1H)-ones/thiones

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  • Srinivasa Rao Jetti1,
  • Divya Verma1,
  • Shubha Jain1,
  1. Laboratory of Heterocycles, School of Studies in Chemistry & Biochemistry, Vikram University, Ujjain, Madhya Pradesh 456010, India.

Published in Issue 2024-02-03

How to Cite

Jetti, S. R., Verma, D., & Jain, S. (2024). 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, 3(4). https://oiccpress.com/ijc/article/view/3775

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Abstract

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.

Keywords

  • 4-dihydropyrimidin-2-(1H)-ones/thiones,
  • Biginelli reaction,
  • Decatungstodivanadogermanic acid,
  • Heterogeneous catalysis,
  • Heteropolyacid
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