Investigation of the Scope of a Co-Mediated O → C Ring-Contraction
2007-04-27T00:00:00Z (GMT) by
A series of dihydropyrans bearing a dicobalthexacarbonyl moiety have been found to undergo an efficient Al-promoted O → C ring-contraction process. This rearrangement reaction operates successfully for a broad range of substrates. Moreover, the potential of this approach for generating cyclopropanes from the corresponding dihydrofurans has been demonstrated.
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