<i>Cata</i> ?Annulated Azaacene Bisimides
نویسندگان
چکیده
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(dicarboximide)tetraazaheptacene resulted in formation symmetric butterfly dimer.
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ژورنال
عنوان ژورنال: Chemistry: A European Journal
سال: 2021
ISSN: ['0947-6539', '1521-3765']
DOI: https://doi.org/10.1002/chem.202101573