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- ISSN: 1570-1786
- E-ISSN: 1875-6255
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Synthesis of New and Known Dicoumarols in Aqueous Media: A Green and Convenient Procedure Promoted by Titanium(IV) Oxide Nanoparticles
- Source: Letters in Organic Chemistry, Volume 11, Issue 8, Oct 2014, p. 596 - 600
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- 01 Oct 2014
Abstract
A simple and green method is reported for the completely chemoselective synthesis of some new dicoumarol derivatives {3,3'-(2-aryl-2-oxoethylidene)bis[4-hydroxycoumarin]s} from the reaction of 4-hydroxycoumarin with arylglyoxals in a molar ratio of 2:1 respectively. The reactions efficiently promoted by titanium(IV) oxide nanoparticles as a heterogeneous catalyst via an on water process. Catalyst loading is very low and it shows recyclability.
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