First Synthesis of the Inherently Chiral Trans ‐4′ Bisadduct of C 59 N Azafullerene by Using Cyclo‐ [2]‐dodecylmalonate as a Tether
The multiaddition chemistry of azafullerene C 59 N has been scarcely explored, and the isolation of pure bisadducts is in its infancy. Encouraged by the recent regioselective synthesis of the inherently chiral equatorial face bisadduct of C 59 N, we focused on the isolation of the first trans‐ 4 bis...
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Veröffentlicht in: | Chemistry : a European journal 2021-10, Vol.27 (55), p.13879-13886 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | The multiaddition chemistry of azafullerene C
59
N has been scarcely explored, and the isolation of pure bisadducts is in its infancy. Encouraged by the recent regioselective synthesis of the inherently chiral
equatorial
face
bisadduct of C
59
N, we focused on the isolation of the first
trans‐
4 bisadduct in a simple two‐step approach. The first regioselective synthesis of the
trans‐
4 bisadduct of C
59
N by using
cyclo‐
[2]‐dodecylmalonate as a tether is now reported. The newly synthesized bisadduct has
C
1
symmetry, as evidenced by
13
C NMR, while X‐ray crystallography validated the
trans‐
4′ addition pattern. Furthermore, the inherently chiral
trans‐
4′ C
59
N bisadduct was enantiomerically resolved, and the mirror‐image relation of the two enantiomers was probed by circular dichroism spectroscopy. Finally, UV‐Vis and redox assays suggested that the addition pattern has a reflection in the light‐harvesting and redox properties of the bisadduct. |
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ISSN: | 0947-6539 1521-3765 |
DOI: | 10.1002/chem.202101776 |