@article{WeclawskiMeilingLeniaketal.2015, author = {Weclawski, Marek K. and Meiling, Till Thomas and Leniak, Arkadiusz and Cywinski, Piotr J. and Gryko, Daniel T.}, title = {Planar, Fluorescent Push-Pull System That Comprises Benzofuran and Iminocoumarin Moieties}, series = {Organic letters}, volume = {17}, journal = {Organic letters}, number = {17}, publisher = {American Chemical Society}, address = {Washington}, issn = {1523-7060}, doi = {10.1021/acs.orglett.5b02042}, pages = {4252 -- 4255}, year = {2015}, 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.}, language = {en} }