title: Concise route to triquinanes from pyran-2-ones.
abstract: Treatment of ether-bridged cyclooctatrienes (formed via intramolecular [4 + 4]-photocycloaddition of pyran-2-ones bearing pendent furans, followed by thermal decarboxylation) with excess MeLi furnishes triquinane ring systems via an apparent sequence of beta-elimination, 1,5-hydrogen shift, and transannular aldolization.
authors.affiliation: Department of Chemistry, University of Alberta, E3-43 Gunning-Lemieux Chemistry Centre, Edmonton, AB, T6G 2G2 Canada.
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.forename: Robert
authors.initials: R
authors.lastname: McDonald
authors.forename: F G
authors.initials: FG
authors.lastname: West