First Diels-Alder Reactions of 3-Styrylchromones under Microwave Irradiation

Abstract Microwave irradiation in solvent-free conditions induces Diels-Alder cycloaddition reactions of 3-styrylchromones with N-methyl and N-phenylmaleimide giving 4-aryl-1,3-dioxopyrrolo[3,4-C]-3a,4,11a,11b-tetrahydroxanthones in good yields. This is the first example of [4+2] cycloaddition react...

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Bibliographic Details
Published in:Synlett 2003-08, Vol.2003 (10)
Main Authors: Pinto, Diana C., Silva, Artur M., Almeida, Lúcia M., Carrillo, José R., Díaz-Ortiz, Angel, de la Hoz, António, Cavaleiro, José A.
Format: Article
Language:English
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Summary:Abstract Microwave irradiation in solvent-free conditions induces Diels-Alder cycloaddition reactions of 3-styrylchromones with N-methyl and N-phenylmaleimide giving 4-aryl-1,3-dioxopyrrolo[3,4-C]-3a,4,11a,11b-tetrahydroxanthones in good yields. This is the first example of [4+2] cycloaddition reactions of 3-styrylchromones.
ISSN:0936-5214
1437-2096
DOI:10.1055/s-2003-40826