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KMID : 1059520130570020260
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Journal of the Korean Chemical Society
2013 Volume.57 No. 2 p.260 ~ p.263
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ZrOCl2·8H2O as an Efficient Catalyst for the Pseudo Four-Component Synthesis of Benzopyranopyrimidines
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Tavakoli Hamid Reza
Moosavi Sayed Mojtaba
Bazgir Ayoob
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Abstract
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An efficient and environmentally benign protocol for the pseudo four-component synthesis of benzopyranopyrimidines via condensation of salicylic aldehydes, malononitrile and various amines catalyzed by ZrOCl2·8H2O as an inexpensive and eco-friendly catalyst with high catalytic activity under solvent-free conditions is reported. This protocol provides a new and improved method for obtaining benzopyranopyrimidines in terms of good yields, simple experimental procedure and short reaction time.
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KEYWORD
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Solvent-free, Malononitrile, Benzopyranopyrimidine, Salicylaldehyde
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