Reversible structural rearrangement of π-expanded cyclooctatetraene upon two-fold reduction with alkali metals
The chemical reduction of a π-expanded COT derivative, octaphenyltetrabenzocyclooctatetraene (1), with lithium or sodium metals in the presence of secondary ligands affords a new doubly-reduced product (1TR2−). The X-ray diffraction study revealed a reductive core rearrangement accompanied by the fo...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2022
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| In: |
Chemical communications
Year: 2022, Volume: 58, Issue: 19, Pages: 3206-3209 |
| ISSN: | 1364-548X |
| DOI: | 10.1039/D2CC00218C |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/D2CC00218C Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2022/cc/d2cc00218c 
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| Author Notes: | Zheng Zhou, Yikun Zhu, Zheng Wei, John Bergner, Christian Neiß, Susanne Doloczki, Andreas Görling, Milan Kivala and Marina A. Petrukhina |
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| 520 | |a The chemical reduction of a π-expanded COT derivative, octaphenyltetrabenzocyclooctatetraene (1), with lithium or sodium metals in the presence of secondary ligands affords a new doubly-reduced product (1TR2−). The X-ray diffraction study revealed a reductive core rearrangement accompanied by the formation of a single C-C bond and severe twist of the central tetraphenylene core. The reversibility of two-electron reduction and core transformation is further confirmed by NMR spectroscopy and DFT calculations. | ||
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