論文

査読有り
2012年6月

High-Yield Diastereoselective Synthesis of Planar Chiral [2]- and [3]Rotaxanes Constructed from per-Ethylated Pillar[5]arene and Pyridinium Derivatives

CHEMISTRY-A EUROPEAN JOURNAL
  • Tomoki Ogoshi
  • ,
  • Daiki Yamafuji
  • ,
  • Takamichi Aoki
  • ,
  • Keisuke Kitajima
  • ,
  • Tada-aki Yamagishi
  • ,
  • Yoshihiro Hayashi
  • ,
  • Susumu Kawauchi

18
24
開始ページ
7493
終了ページ
7500
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/chem.201200122
出版者・発行元
WILEY-V C H VERLAG GMBH

Planar chiral [2]- and [3]rotaxanes constructed from pillar[5]arenes as wheels and pyridinium derivatives as axles were obtained in high yield using click reactions. The process of rotaxane formation was diastereoselective; the obtained [2]rotaxane was a racemic mixture consisting of (pS, pS, pS, pS, pS) and (pR, pR, pR, pR, pR) forms of the per-ethylated pillar[5]arene (C2) wheel, and other possible types of the [2]rotaxane did not form. Isolation of the enantiopure [2]rotaxanes with one axle through (pS, pS, pS, pS, pS)-C2 or (pR, pR, pR, pR, pR)-C2 wheels was accomplished. Furthermore, pillar[5]arene-based [3]rotaxane was successfully synthesized by attachment of two pseudo [2]rotaxanes onto a bifunctional linker. [3]Rotaxane formed in a 1:2:1 mixture with one axle threaded through two (pS, pS, pS, pS, pS)-C2, one (pS, pS, pS, pS, pS)-C2 and one (pR, pR, pR, pR, pR)-C2 (meso form), or two (pR, pR, pR, pR, pR)-C2 wheels. The [3]rotaxane enantiomers and the meso form were successfully isolated using appropriate chiral HPLC column chromatography. The procedure developed in this study is the starting point for the creation of pillar[5]arene-based interlocked molecules.

リンク情報
DOI
https://doi.org/10.1002/chem.201200122
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000304755700022&DestApp=WOS_CPL
URL
http://orcid.org/0000-0002-4464-0347
ID情報
  • DOI : 10.1002/chem.201200122
  • ISSN : 0947-6539
  • eISSN : 1521-3765
  • ORCIDのPut Code : 25144635
  • Web of Science ID : WOS:000304755700022

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