3 years ago

Synthesis and C–H Functionalization Chemistry of Thiazole-Semicoronenediimides (TsCDIs) and -Coronenediimides (TCDIs)

Synthesis and C–H Functionalization Chemistry of Thiazole-Semicoronenediimides (TsCDIs) and -Coronenediimides (TCDIs)
Qinqin Shi, Simon B. Blakey, Seth R. Marder, Eric S. Andreansky
Coronenediimide (CDI) derivatives have a planar structure, a reasonably high electron affinity, and a rigid and extended delocalized π-system. Therefore, this core and variants thereof may be promising building blocks for the synthesis of electron transport materials. Herein, we have synthesized thiazole-semicoronenediimides (TsCDIs) and -coronenediimides (TCDIs) by a two-step process from a perylenediimide (PDI) precursor. Conditions for C–H arylation and heteroarylation of the thiazole moiety of this core were developed and were successfully used for the synthesis of dimer, triad, and polymeric materials. The optical and electrochemical properties of these materials and their monomers were examined as a function of side-chain modification and π-extension. With their broad optical absorption and low reduction potentials, these materials could be candidates as organic semiconductors for applications in OFETs and as nonfullerene acceptors.

Publisher URL: http://dx.doi.org/10.1021/acs.joc.7b01604

DOI: 10.1021/acs.joc.7b01604

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