title: Breaking down barriers: the liaison between sigmatropic shifts, electrocyclic reactions, and three-center cations.
authors.affiliation: Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14853-1301, USA.
authors.forename: Roald
authors.initials: R
authors.lastname: Hoffmann
authors.forename: Dean J
authors.initials: DJ
authors.lastname: Tantillo