Enantiospecific Syntheses of Congested Atropisomers through Chiral Bis (aryne) Synthetic Equivalents

Abstract: The synthetic equivalents of the enantiopure binaphthyl bis (aryne) atropisomers derived from BINOL (1,1′‐bi‐2,2′‐naphtol) featuring a stereogenic axis vicinal to the two reactive triple bonds can be generated for the first time in solution in an enantiospecific manner. Using a two‐step sequence based on the bidirectional [4+2] cycloaddition of furan derivatives followed by an aromatizative deoxygenation reaction, several 9,9’‐bianthracenyl‐based atropisomers could be prepared enantiospecifically in high enantiomeric purity. Alternatively, bidirectional reactions with anthracene, 2‐bromostyrene, and perylene as the arynophiles afforded very congested bis (benzotriptycene), bis (tetraphene) and bis (anthra[1,2,3,4‐ghi]perylene) nanocarbon atropisomers in equally high enantiomeric purity. In complement, cross reactions with two different arynophiles revealed possible. The unusual atropisomer prototypes described in this study open the way to enantiopure nanographene atropisomers designed for functions.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Enantiospecific Syntheses of Congested Atropisomers through Chiral Bis (aryne) Synthetic Equivalents ; day:29 ; month:09 ; year:2022 ; extent:1
Chemistry - a European journal ; (29.09.2022) (gesamt 1)

Urheber
Dauvergne, Guillaume
Naubron, Jean‐Valère
Giorgi, Michel
Bugaut, Xavier
Rodriguez, Jean
Carissan, Yannick
Coquerel, Yoann

DOI
10.1002/chem.202202473
URN
urn:nbn:de:101:1-2022092915065293583064
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:22 MESZ

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Beteiligte

  • Dauvergne, Guillaume
  • Naubron, Jean‐Valère
  • Giorgi, Michel
  • Bugaut, Xavier
  • Rodriguez, Jean
  • Carissan, Yannick
  • Coquerel, Yoann

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