Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5270482 | Tetrahedron Letters | 2014 | 4 Pages |
Abstract
The 4-(o-propargyloxy)styrylcoumarins are prepared by the condensation of O-propargylated salicylaldehyde with substituted coumarin-4-acetic acids. The intramolecular Diels-Alder reaction of 4-(o-propargyloxy)styrylcoumarins, without any catalyst gives fused-ring coumarins. The reaction in boiling nitrobenzene leads to aromatization of the initial Diels-Alder adduct and these aromatized products are highly fluorescent.
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Related Topics
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Chemistry
Organic Chemistry
Authors
Adil I. Khatri, Shriniwas D. Samant,