Molecules (Sep 2022)

A Water-Soluble Leggero Pillar[5]arene

  • Jia-Rui Wu,
  • Gengxin Wu,
  • Zhi Cai,
  • Dongxia Li,
  • Meng-Hao Li,
  • Yan Wang,
  • Ying-Wei Yang

DOI
https://doi.org/10.3390/molecules27196259
Journal volume & issue
Vol. 27, no. 19
p. 6259

Abstract

Read online

The study of aqueous-phase molecular recognition of artificial receptors is one of the frontiers in supramolecular chemistry since most biochemical processes and reactions take place in an aqueous medium and heavily rely on it. In this work, a water-soluble version of leggero pillar[5]arene bearing eight positively charged pyridinium moieties (CWP[5]L) was designed and synthesized, which exhibited good binding affinities with certain aliphatic sulfonate species in aqueous solutions. Significantly, control experiments demonstrate that the guest binding performance of CWP[5]L is superior to its counterpart water-soluble macrocyclic receptor in traditional pillararenes.

Keywords