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Aromaticity and Extrusion of Benzenoids Linked to [o-COSAN]−: Clar Has the Answer

Angewandte Chemie - International Edition (2022) 61(22)
DOI: 10.1002/anie.202200672
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Abstract

Benzene and pyrene can be synthetically linked to [o-COSAN]− keeping their aromaticity. In contrast, naphthalene and anthracene are extruded in the same reaction. We have proven that extrusion is only favorable if the number of Clar's π-sextets remains constant. Thus, Clar has the answer to whether an attached polycyclic aromatic hydrocarbon to [o-COSAN]− is extruded or not.

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Poater, J., Viñas, C., Olid, D., Solà, M., & Teixidor, F. (2022). Aromaticity and Extrusion of Benzenoids Linked to [o-COSAN]−: Clar Has the Answer. Angewandte Chemie - International Edition, 61(22). https://doi.org/10.1002/anie.202200672

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