Abstract
Titanium dioxide nanoparticles (TiO2 NPs) were used as an effective catalyst in the solvent-free, one-pot threecomponent reaction of aromatic aldehydes, malononitrile and 4-hydroxycoumarin to produce corresponding dihydropyrano[ c]chromenes in high yields. This method has the advantages of a simple operation, short reaction time, high yields, easy work-up, reusability of the catalyst, and an environmentally friendly specificity.
Keywords: Dihydropyrano[c]chromenes, Domino Knoevenagel-Michael addition, Solvent-free, TiO2 nanoparticles.
Current Catalysis
Title:Solvent-Free Synthesis of 4,5-Dihydropyrano[c]chromene Derivatives Over TiO2 Nanoparticles as an Economical and Efficient Catalyst
Volume: 2 Issue: 2
Author(s): Shahrzad Abdolmohammadi
Affiliation:
Keywords: Dihydropyrano[c]chromenes, Domino Knoevenagel-Michael addition, Solvent-free, TiO2 nanoparticles.
Abstract: Titanium dioxide nanoparticles (TiO2 NPs) were used as an effective catalyst in the solvent-free, one-pot threecomponent reaction of aromatic aldehydes, malononitrile and 4-hydroxycoumarin to produce corresponding dihydropyrano[ c]chromenes in high yields. This method has the advantages of a simple operation, short reaction time, high yields, easy work-up, reusability of the catalyst, and an environmentally friendly specificity.
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Abdolmohammadi Shahrzad, Solvent-Free Synthesis of 4,5-Dihydropyrano[c]chromene Derivatives Over TiO2 Nanoparticles as an Economical and Efficient Catalyst, Current Catalysis 2013; 2 (2) . https://dx.doi.org/10.2174/2211544711302020005
DOI https://dx.doi.org/10.2174/2211544711302020005 |
Print ISSN 2211-5447 |
Publisher Name Bentham Science Publisher |
Online ISSN 2211-5455 |
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