title: Facile syntheses of quater-, penta-, and sexipyrroles.
abstract: alpha,alpha-Linked oligopyrroles are attractive precursors for both expanded porphyrin and conducting polymer chemistry. We demonstrate facile methods for synthesizing quater-, penta-, and sexipyrroles from more readily available bi- and terpyrrole intermediates. These products demonstrate stability in their brightly colored oxidized forms, while reduction using borohydride reagents gives the corresponding all-pyrrole oligomers, which oxidize readily in air. The oxidized quater- and sexipyrroles were characterized by single-crystal X-ray diffraction analysis.
authors.affiliation: Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas, Austin, 78712-0165, USA. sessler@mail.utexas.edu
authors.forename: Jonathan L
authors.initials: JL
authors.lastname: Sessler
authors.forename: Apolonio
authors.initials: A
authors.lastname: Aguilar
authors.forename: David
authors.initials: D
authors.lastname: Sanchez-Garcia
authors.forename: Daniel
authors.initials: D
authors.lastname: Seidel
authors.forename: Thomas
authors.initials: T
authors.lastname: Köhler
authors.forename: Forrest
authors.initials: F
authors.lastname: Arp
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Lynch