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Nano-sphere silica sulfuric acid: novel and efficient catalyst in the one-pot multi-component synthesis

✍ Scribed by Ardeshir Khazaei, Mohammad Ali Zolfigol…

Book ID
120737142
Publisher
Iranian Chemical Society
Year
2013
Tongue
English
Weight
503 KB
Volume
10
Category
Article
ISSN
1735-207X

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Silica sulfuric acid: an efficient and reusable catalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones
✍ Peyman Salehi; Minoo Dabiri; Mohammad Ali Zolfigol; Mohammad Ali Bodaghi Fard 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 91 KB

Silica sulfuric acid efficiently catalyzes the three-component Biginelli reaction between an aldehyde, a b-dicarbonyl compound and urea or thiourea in refluxing ethanol to afford the corresponding dihydropyrimidinones in high yields. The catalyst is reusable and can be applied several times without