title: Novel lactonization with phenonium ion participation induced by hypervalent iodine reagents.
abstract: [reaction: see text] A novel lactonization of 4-aryl-4-pentenoic acids is described using aryl-lambda(3)-iodanes as reagents for this transformation. The hypervalent iodine species acts as a hypernucleofuge, generating intermediate phenonium ions, which react to aryl-migrated lactones.
authors.affiliation: Chemistry Department, Albion College, Albion, Michigan 49224, Department of Chemistry, University of Basel, 4056 Basel, Switzerland.
authors.forename: Amanda C
authors.initials: AC
authors.lastname: Boye
authors.forename: Dominik
authors.initials: D
authors.lastname: Meyer
authors.forename: Crystal K
authors.initials: CK
authors.lastname: Ingison
authors.forename: Andrew N
authors.initials: AN
authors.lastname: French
authors.forename: Thomas
authors.initials: T
authors.lastname: Wirth