title: Tribenzotriquinacenes bearing three peripheral or bridgehead urea groups stretched into the 3-D space.
abstract: The syntheses of tribenzotriquinacenes (TBTQ) bearing three phenylurea groupings at either the arene periphery or at the benzhydrylic bridgeheads of the rigid, convex-concave, C(3) (v)-symmetrical molecular framework are reported. (1)H NMR data point to supramolecular aggregation of these TBTQ derivatives in low-polarity solvents.
authors.affiliation: Department of Chemistry, Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany.
authors.forename: Jörg
authors.initials: J
authors.lastname: Tellenbröker
authors.forename: Dietmar
authors.initials: D
authors.lastname: Kuck