論文

査読有り
2021年12月

Enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution strategy

Nature Communications
  • Ayumi Imayoshi
  • ,
  • Bhatraju Vasantha Lakshmi
  • ,
  • Yoshihiro Ueda
  • ,
  • Tomoyuki Yoshimura
  • ,
  • Aki Matayoshi
  • ,
  • Takumi Furuta
  • ,
  • Takeo Kawabata

12
1
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41467-020-20372-0
出版者・発行元
Springer Science and Business Media {LLC}

<title>Abstract</title>Asymmetric synthesis of mechanically planar chiral rotaxanes and topologically chiral catenanes has been a long-standing challenge in organic synthesis. Recently, an excellent strategy was developed based on diastereomeric synthesis of rotaxanes and catenanes with mechanical chirality followed by removal of the chiral auxiliary. On the other hand, its enantioselective approach has been quite limited. Here, we report enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution of the racemates via remote asymmetric acylation of a hydroxy group in the axis component, which provides an unreacted enantiomer in up to &gt;99.9% ee in 29% yield (the theoretical maximum yield of kinetic resolution of racemate is 50%). While the rotaxane molecules are expected to have conformational complexity, our original catalysts enabled to discriminate the mechanical chirality of the rotaxanes efficiently with the selectivity factors in up to 16.

リンク情報
DOI
https://doi.org/10.1038/s41467-020-20372-0
URL
http://www.nature.com/articles/s41467-020-20372-0.pdf
URL
http://www.nature.com/articles/s41467-020-20372-0
ID情報
  • DOI : 10.1038/s41467-020-20372-0
  • ISSN : 2041-1723
  • eISSN : 2041-1723
  • ORCIDのPut Code : 102054947

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