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DOI: 10.1055/s-0042-1751947
Topologically Chiral Nanohoops
Lemniscular Carbon Nanohoops with Contiguous Conjugation from Planar Chiral [2.2]Paracyclophane: Influence of the Regioselective Synthesis on Topological Chirality.
Chem. Sci. 2023;
14: 4426-4433
DOI: 10.1039/D2SC06825G
Significance
As a novel chiral element, topological chirality has expanded the research and application horizon of related functional materials. While synthetic strategies for the non-conjugated counterparts have been widely investigated, methods for conjugated structures of topological chirality are relatively less explored. Herein, two isomeric nanohoops of conjugated backbone are constructed by harnessing [2.2]paracyclophane as the hinge unit.
Comment
Introducing different silyl protective groups regiospecifically to the central chiral paracyclophane is crucial to the subsequent site-specific ring closure and achievement of the topological chirality. The inherent difference in the structural topology exhibited by the two isomers results in their distinct chiral traits and chiroptical properties.
Publikationsverlauf
Artikel online veröffentlicht:
14. Juli 2023
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