Fully conjugated macrocycles containing benzenoid rings rarely show global aromaticity/antiaromaticity. Herein, we report an annulene-like macrocycle and its ,-dioxidized macrocycle with alternative quinoidal thiophene/1,1-dioxide thiophene and triphenyl amine moieties. They both showed temperature-dependent intramolecular dynamics and global antiaromatic character with 32π electrons at low temperature. However, and have different conjugated pathways.
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| http://dx.doi.org/10.1021/acs.orglett.1c02200 | DOI Listing |
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