title: Synthesis of bis(phenanthropyrroles) via a tandem Scholl oxidation.
abstract: An electron-rich 3,4-diarylpyrrole is shown to undergo a tandem inter- and intramolecular Scholl oxidation, providing access to bis(phenanthropyrroles), a new class of bipyrrole derivatives with extended π conjugation. Intermolecular coupling of two pyrrole molecues is found to be the initial step of this reaction. Bis(phenanthropyrroles) are characterized by restricted rotation around the α-α bond and exhibit strong blue fluorescence and large Stokes shifts.
authors.affiliation: Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland.
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Gońka
authors.forename: Damian
authors.initials: D
authors.lastname: Myśliwiec
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Lis
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Chmielewski
authors.forename: Marcin
authors.initials: M
authors.lastname: Stępień