Factors affecting the competitive reduction of 8,8-dimethylnaphthalene-1,4, 5(8H)-trione in a Diels-Alder cycloaddition with hydroxysulfinyldienes

Iriux Almodovar, Wilson Cardona, Tomás Delgado-Castro, Gerald Zapata-Torres, Marcos Caroli Rezende, Ramiro Araya-Maturana

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

Competing reduction and cycloaddition products were formed in the reaction of 8,8-dimethylnaphthalene-1,4,5(8H)-trione with a hydroxysulfinyldiene. The ratio of reduction to cycloaddition products depended on the stereochemistry of the diene and on the solvent employed, being higher in ethanol than in benzene. The ratio was also affected by the addition of Lewis acids, decreasing in the order BF3 = Al2O3 > MgCl2 > ZnCl2. The results help to explain and predict the occurrence of these competing processes in Diels-Alder cycloadditions involving quinonedienophiles.

Idioma originalInglés
Páginas (desde-hasta)1021-1026
Número de páginas6
PublicaciónJournal of the Iranian Chemical Society
Volumen11
N.º4
DOI
EstadoPublicada - 2014

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