Abstract
An Efficient Method for the One-pot, Three-Component Synthesis of 3,4-Dihydropyrano[c]chromenes Catalyzed by Nano Al2O3
Alireza Montaghami , Naser Montazeri*
DOI : http://dx.doi.org/10.13005/ojc/300355
Abstract:
Nano Al2O3 efficiently catalyzed the one-pot, three-component reaction of 4-hydroxycoumarin, aromatic aldehydes and malononitrile to yield 3,4-dihydropyrano[c]chromene derivatives in high yields. The features of this procedure are mild, reaction conditions, short reaction time and operational simplicity.
Keywords:Nano Al2O3; 3; 4-Dihydropyrano[c]chromene; 4-Hydroxycoumarin; Malononitrile; Aromatic aldehydes
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