[2]Pseudorotaxanes and [2]catenanes constructed by oxacalixcrowns/viologen molecular recognition motifs

Org Lett. 2014 Nov 21;16(22):5894-7. doi: 10.1021/ol502869u. Epub 2014 Nov 3.

Abstract

Oxacalix[2]arene[2]pyrazine and functional polyether derived oxacalixcrown-6, -7, and -8 were synthesized, and their host-guest complexation with paraquat to form [2]pseudorotaxanes was studied. The [2]pseudorotaxanes were then successfully used in the construction of two oxacalixcrown-tetracationic cyclophane [CBPQT(4+)] based [2]catenanes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catenanes / chemical synthesis*
  • Catenanes / chemistry
  • Molecular Structure
  • Paraquat / chemistry
  • Protein Structure, Tertiary
  • Rotaxanes / chemical synthesis*
  • Rotaxanes / chemistry
  • Viologens / chemistry*

Substances

  • Catenanes
  • Rotaxanes
  • Viologens
  • Paraquat