Felix K.-H. Chun , Thomas Steuber , Andreas Erbersdobler , Eike Currlin , Jochen Walz , Thorsten Schlomm, Alexander Haese , Hans Heinzer , Michael McCormack , Hartwig Huland , Markus Graefen , Pierre I. Karakiewicz * Department of Urology, University of Hamburg, Hamburg, Germany Martini Clinic– Prostate Cancer Center, University of Hamburg, Hamburg, Germany Department of Pathology, University o...

Ultra-electron-deficient azaacenes were synthesized via Buchwald-Hartwig coupling of ortho-diaminoarenes with chlorinated mellophanic diimide followed by oxidation the intermediate N,N’-dihydro compounds MnO2 or PbO2. The resulting cata-annulated bisimide have ultrahigh electron affinities first reduction potentials as low ?0.35 V recorded for a tetraazapentacene. Attempts to prepare tetrakis(d...

The copper-mediated aromatic nucleophilic substitution reactions developed by Fritz Ullmann and Irma Goldberg required stoichiometric amounts of copper and very high reaction temperatures. Recently, it was found that addition of relatively cheap ligands (diamines, aminoalcohols, diketones, diols) made these reactions truly catalytic, with catalyst amounts as low as 1 mol% or even lower. Since t...

N,N-Diaryl aminostilbenes and N,N-diaryl aminostyrenes are versatile compounds that have found exciting applications in the field of photochemistry; most of these compounds are patented and they are widely used as electro-photographic photoconductors and photoreceptors. Recent reports have demonstrated, for example, that these compounds can exhibit an amino-conjugation effect in their fluoresce...