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Current Catalysis

Editor-in-Chief

ISSN (Print): 2211-5447
ISSN (Online): 2211-5455

Solvent-Free Synthesis of 4,5-Dihydropyrano[c]chromene Derivatives Over TiO2 Nanoparticles as an Economical and Efficient Catalyst

Author(s): Shahrzad Abdolmohammadi

Volume 2, Issue 2, 2013

Page: [116 - 121] Pages: 6

DOI: 10.2174/2211544711302020005

Price: $65

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.


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