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

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.

Cite this article as:

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