Catenation of calixarene annulus

Org Lett. 2013 Jan 4;15(1):116-9. doi: 10.1021/ol303142c. Epub 2012 Dec 18.

Abstract

Through-the-annulus-catenated calixarenes have been obtained, for the first time, by exploiting the "superweak anion" approach that allows the threading of the calix cavity with functionalized dialkylammonium axles. In addition, the first example of a stereoprogrammed synthesis of a catenane orientational isomer (an oriented calix[2]catenane) has been obtained, after macrocyclization, by using a directional alkylbenzylammonium axle.

MeSH terms

  • Calixarenes / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Structure
  • Rotaxanes / chemistry*
  • Stereoisomerism

Substances

  • Rotaxanes
  • Calixarenes