title: Ring closing and opening reactions leading to aza-polycyclic aromatic compounds.
abstract: A series of functionalized aza-polycyclic aromatic compounds were prepared by a superacid-promoted ring closing and opening reaction cascade. A reaction mechanism is proposed, which involves reactive dicationic intermediates. A key step in the conversions involvesipsoprotonation of an aryl group and elimination of an alkyl phenyl group.
authors.affiliation: Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, United States.
authors.forename: Anila
authors.initials: A
authors.lastname: Kethe
authors.forename: Ang
authors.initials: A
authors.lastname: Li
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Klumpp
keywords: Aza-polycyclic aromatic compounds; Condensation; Dication; Heterocycle; Superacid