Citation: Khodabakhsh Niknam, Alireza Hasaninejad, Madihe Arman. Synthesis of some new bis-3,4-dihydropyrimidin-2(1H)-ones by using silica-supported tin chloride and titanium tetrachloride[J]. Chinese Chemical Letters, ;2010, 21(4): 399-402. doi: 10.1016/j.cclet.2009.12.008 shu

Synthesis of some new bis-3,4-dihydropyrimidin-2(1H)-ones by using silica-supported tin chloride and titanium tetrachloride

Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran

Received Date: 18 August 2009

Fund Project: We are thankful to the Persian Gulf University Research Council for the partial support of this work.

Silica-supported tin chloride and titanium tetrachloride were prepared by the reaction of tin chloride and titanium tetrachloride with activated silica gel in refluxing toluene.These solid acids have been employed as the catalysts for the synthesis of bisdihydropyrimidin-2(1H)-ones from aromatic dialdehydes,1,3-dicarbonyl compounds and urea at 90℃ under solvent-free conditions.
- Silica-supported tin chloride,
- Silica-supported titanium tetrachloride,
- Bis-3,
- 4-dihydropyrimidin-2(1H)-one,
- Solvent-free,
- 1,3-Dicarbonyl compounds
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