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. 
DOI: 10.3762/bjoc.7.43

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