Evaluation of Ring-Strain Effects in Cycloalkene-Fused Octadehydro[14]annulenes

A. J. Boydston; Matthew Laskoski; Uwe H. F. Bunz; Michael M. Haley

doi:10.1055/s-2002-31920

LETTER

Evaluation of Ring-Strain Effects in Cycloalkene-Fused Octadehydro[14]annulenes

A Boydston^a, Matthew Laskoski^b, Uwe H. F. Bunz*^b, Michael M. Haley*^a
^a Department of Chemistry, University of Oregon, Eugene, Oregon 97403-1253, USA
Fax: +1(541)3460487; e-Mail: haley@oregon.uoregon.edu;
^b Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA

Abstract

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Abstract

The possibility of ring strain as the cause of bond localization in metalloarene-fused octadehydro[14]annulenes is addressed. It was found that strain-induced bond localization is not observable in the mildly aromatic annulenes previously used to compare the degree of delocalization in CpCo(cyclobutadiene) relative to ferrocene and benzene.

Key words

annulenes - aromaticity - cross-coupling - ring current

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References

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