Expedient total syntheses of the originally proposed structures of the naturally occurring α- and β-diversonolic esters (1 and 2) and diversonol (3) lead to the revision of the structures of 1 and 2 to 4 and 5, respectively (see structures). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802632_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.