Novel pillar[5]arene-based dynamic polyrotaxanes interlocked by the quadruple hydrogen bonding ureidopyrimidinone motif

Org Lett. 2012 Sep 21;14(18):4826-9. doi: 10.1021/ol302149t. Epub 2012 Sep 4.

Abstract

Novel dynamic polyrotaxanes constructed from pillar[5]arenes as wheels and diamines as axles have been successfully synthesized in good yield using quadruple hydrogen bonding ureidopyrimidinone (UPy) motifs, which play a dual role as the end-capping and interlocking units. The present study is the first example of noncovalent bonded dynamic polyrotaxanes constructed by multiple hydrogen bonding interactions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calixarenes / chemistry
  • Hydrogen Bonding
  • Models, Molecular*
  • Molecular Structure
  • Pyrimidinones / chemistry*
  • Rotaxanes / chemical synthesis*
  • Rotaxanes / chemistry

Substances

  • 2-ureido-4(3H)-pyrimidinone
  • Pyrimidinones
  • Rotaxanes
  • Calixarenes