Expanded [23]-Helicene with Exceptional Chiroptical Properties via an Iterative Ring-Fusion Strategy.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c09555
Abstract: Expanded helicenes are an emerging class of helical nanocarbons composed of alternating linear and angularly fused rings, which give rise to an internal cavity and a large diameter. The latter is expected to impart exceptional… read more here.
Keywords: expanded helicene; properties via; helicene exceptional; chiroptical properties ... See more keywords
Synthesis of S-shaped polycyclic aromatic hydrocarbons as anthracene-fused double expanded helicenes by intramolecular alkyne cycloisomerization
Sign Up to like & getrecommendations! Published in 2025 at "Canadian Journal of Chemistry"
DOI: 10.1139/cjc-2025-0093
Abstract: Polycyclic aromatic hydrocarbons [3]DHA and [5]DHA with three and five fused anthracene units, respectively, were synthesized as expanded helicenes with two helical sites. Double intramolecular alkyne cycloisomerization of diaryldiethynylbenzene precursors with PtCl2 catalyst produced the… read more here.
Keywords: intramolecular alkyne; polycyclic aromatic; expanded helicenes; aromatic hydrocarbons ... See more keywords