Display options
Cite
Schaack C, Sidler E, Trapp N, et al. Helical Threads: Enantiomerically Pure Carbo[6]Helicene Oligomers. Chemistry. 2017;23(57):14153-14157doi: 10.1002/chem.201703024.
Schaack, C., Sidler, E., Trapp, N., & Diederich, F. (2017). Helical Threads: Enantiomerically Pure Carbo[6]Helicene Oligomers. Chemistry (Weinheim an der Bergstrasse, Germany), 23(57), 14153-14157. https://doi.org/10.1002/chem.201703024
Schaack, Cédric, et al. "Helical Threads: Enantiomerically Pure Carbo[6]Helicene Oligomers." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 23,57 (2017): 14153-14157. doi: https://doi.org/10.1002/chem.201703024
Schaack C, Sidler E, Trapp N, Diederich F. Helical Threads: Enantiomerically Pure Carbo[6]Helicene Oligomers. Chemistry. 2017 Oct 12;23(57):14153-14157. doi: 10.1002/chem.201703024. Epub 2017 Sep 18. PMID: 28922527.
Copy Download .nbib Format: NLM
Share it on

Chemistry. 2017 Oct 12;23(57):14153-14157. doi: 10.1002/chem.201703024. Epub 2017 Sep 18.

Helical Threads: Enantiomerically Pure Carbo[6]Helicene Oligomers.

Chemistry (Weinheim an der Bergstrasse, Germany)

Cédric Schaack, Eric Sidler, Nils Trapp, François Diederich

Affiliations

  1. Laboratorium für Organische Chemie, ETH Zurich, Hönggerberg, HCI, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland.

PMID: 28922527 DOI: 10.1002/chem.201703024

Abstract

We report the synthesis of enantiomerically pure carbo[6]helicene oligomers with buta-1,3-diyne-1,4-diyl bridges between the helicene nuclei. The synthesis of monomeric (±)-2,15-bis[(triisopropylsilyl)ethynyl]carbo[6]helicene was achieved in 25 % yield over six steps. Pure (+)-(P)- and (-)-(M)-enantiomers were obtained by HPLC on a chiral stationary phase. The dimeric (+)-(P)

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: circular dichroism; helicenes; oligomerization; photocyclodehydrogenation; polymorphism; π-electron delocalization

Publication Types