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ChemInform Abstract: Xanthan Sulfuric Acid: A New and Efficient Biosupported Solid Acid Catalyst for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones.

โœ Scribed by B. Suresh Kuarm; J. Venu Madhav; S. Vijaya Laxmi; B. Rajitha


Book ID
115551954
Publisher
John Wiley and Sons
Year
2012
Weight
28 KB
Volume
43
Category
Article
ISSN
0931-7597

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๐Ÿ“œ SIMILAR VOLUMES


Silica sulfuric acid: an efficient and r
โœ Peyman Salehi; Minoo Dabiri; Mohammad Ali Zolfigol; Mohammad Ali Bodaghi Fard ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 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