Embedding a planar antiaromatic cyclooctatetraene into a truxene-derived polycyclic aromatic hydrocarbon

Two contorted, monkey saddle-shaped polycyclic aromatic hydrocarbons (PAHs) with tailored substitution patterns were synthesized to enhance their inversion barriers. Along the way, a chiral, truxene-based PAH featuring a planar cyclooctatetraene (COT) core was discovered and structurally confirmed b...

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Bibliographic Details
Main Authors: Ebel, Simone Felicia (Author) , Rominger, Frank (Author) , Mastalerz, Michael (Author)
Format: Article (Journal) Editorial
Language:English
Published: July 15, 2025
In: Organic letters
Year: 2025, Volume: 27, Issue: 29, Pages: 7944-7949
ISSN:1523-7052
DOI:10.1021/acs.orglett.5c02272
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.orglett.5c02272
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Author Notes:Simone F. Ebel, Frank Rominger, and Michael Mastalerz
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Summary:Two contorted, monkey saddle-shaped polycyclic aromatic hydrocarbons (PAHs) with tailored substitution patterns were synthesized to enhance their inversion barriers. Along the way, a chiral, truxene-based PAH featuring a planar cyclooctatetraene (COT) core was discovered and structurally confirmed by X-ray crystallography. Its antiaromatic character and optoelectronic properties were investigated and compared to those of its negatively curved precursor. Deuterium-labeling experiments and DFT calculations provided insights into the formation of the planar COT ring.
Item Description:Gesehen am 10.11.2025
Physical Description:Online Resource
ISSN:1523-7052
DOI:10.1021/acs.orglett.5c02272