Cyclodextrin Rotaxane with Switchable Pirouetting

Org Lett. 2018 Apr 6;20(7):2096-2099. doi: 10.1021/acs.orglett.8b00655. Epub 2018 Mar 15.

Abstract

A [1]rotaxane with two threaded α-cyclodextrin (α-CD) wheels was synthesized in 92% yield using a one-pot process at room temperature that employed spontaneous α-CD threading onto a 12-carbon alkyl chain in water followed by an oxime condensation reaction that attached two boronic acid-containing stopper groups. Rapid pirouetting of the threaded α-CD wheels around the encapsulated dumbbell was switched "ON" or "OFF" by the presence of chemical additives that controlled boronate ester bond formation between the interlocked components.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Cyclodextrins
  • Molecular Structure
  • Rotaxanes / chemistry*
  • Water

Substances

  • Cyclodextrins
  • Rotaxanes
  • Water