Starch Sulfuric Acid: an Alternative, Eco-Friendly Catalyst for Biginelli Reaction

The one-pot multicomponent synthesis of 3,4-dihydropyrimidinone derivatives using starch sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst from aldehydes, β-keto esters and urea/ thiourea without solvent is described. Compared with classical Biginelli reaction conditi...

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Veröffentlicht in:	Chemistry journal of Moldova 2013-12, Vol.8 (2), p.101-106
Hauptverfasser:	Rezaei, Ramin, Malek, Sara, Sheikhi, Mohammad Reza, Mohammadi, Mohammad Kazem
Format:	Artikel
Sprache:	eng
Schlagworte:	Biginelli reaction biodegradable catalys dihydropyrimidinones solvent-free starch sulfuric acid
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Zusammenfassung:	The one-pot multicomponent synthesis of 3,4-dihydropyrimidinone derivatives using starch sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst from aldehydes, β-keto esters and urea/ thiourea without solvent is described. Compared with classical Biginelli reaction conditions, this new method has the advantage of minimizing the cost operational hazards and environmental pollution, good yields, shorter reaction times and simple work-up.
ISSN:	1857-1727 2345-1688
DOI:	10.19261/cjm.2013.08(2).13