title: Planar, Fluorescent Push-Pull System That Comprises Benzofuran and Iminocoumarin Moieties.
abstract: Previously unknown, vertically linked heterocycles comprised of benzofuran and iminocoumarin moieties have been synthesized directly from 1,5-dibenzoyloxyanthraquinone and arylacetonitriles via double Knoevenagel condensation followed by formal HCN elimination. The structural assembly of fully conjugated, electron-rich benzofuran and electron-deficient iminocoumarin is responsible for the strongly polarized nature of these heterocycles which translates into their polarity-sensitive fluorescence.
authors: Institute of Organic Chemistry, PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland.
authors: Marek K
authors: MK
authors: Węcławski
authors: Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany.
authors: Till T
authors: TT
authors: Meiling
authors: Institute of Organic Chemistry, PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland.
authors: Arkadiusz
authors: A
authors: Leniak
authors: Fraunhofer Institute for Applied Polymer Research, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany.
authors: Piotr J
authors: PJ
authors: Cywiński
authors: Institute of Organic Chemistry, PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland.
authors: Daniel T
authors: DT
authors: Gryko