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The Journal of organic chemistry

Facile synthesis of oxabicyclic alkenes by ultrasonication-promoted diels-alder cycloaddition of furano dienes.


PMID 15307754

Abstract

Ultrasonic irradiation effectively promotes the Diels-Alder reaction of substituted furans with reactive dienophiles (i.e., dimethyl acetylenedicarboxylate (DMAD) and dimethyl maleate). Regiospecific furano Diels-Alder cycloaddition of 2-vinylic furans with DMAD furnished functionalized oxabicyclic alkenes in good yield under ultrasonication condition.

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