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oa South African Journal of Chemistry - Nano-Ticl.SiO : a versatile and efficient catalyst for synthesis of dihydropyrimidones via Biginelli condensation : research article

Volume 67, Issue 1
  • ISSN : 0379-4350

 

Abstract

Nano-TiCl.SiO has been found to be an extremely efficient catalyst for the preparation of 3,4-dihydropyrimidinones/thiones three-component reactions of an aldehyde, β-ketoester or β-diketone and urea or thiourea under mild conditions. Nano-TiCl.SiO as a solid Lewis acid has been synthesized by reaction of nano-SiO and TiCl. The structural characterization of this acid has been studied by FT-IR (ATR), XRD, SEM and TEM. This process was simple and environmentally benign with high to excellent yields. Furthermore, the catalyst could be recovered conveniently and reused for at least three times.

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/content/chem/67/1/EJC148221
2014-01-01
2016-12-10

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