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Cata-Annulated Azaacene Bisimides.


ABSTRACT: Ultra-electron-deficient azaacenes were synthesized via Buchwald-Hartwig coupling of ortho-diaminoarenes with chlorinated mellophanic diimide followed by oxidation of the intermediate N,N'-dihydro compounds with MnO2 or PbO2 . The resulting cata-annulated bisimide azaacenes have ultrahigh electron affinities with first reduction potentials as low as -0.35 V recorded for a tetraazapentacene. Attempts to prepare a tetrakis(dicarboximide)tetraazaheptacene resulted in the formation of a symmetric butterfly dimer.

SUBMITTER: Elter M 

PROVIDER: S-EPMC8457205 | biostudies-literature |

REPOSITORIES: biostudies-literature

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