Palladium(II)-directed self-assembly of dynamic donor-acceptor [2]catenanes

Org Lett. 2008 Mar 6;10(5):765-8. doi: 10.1021/ol702830p. Epub 2008 Feb 5.

Abstract

Highly efficient syntheses of donor-acceptor [2]catenanes were developed using a combination of templation and reversible metal-ligand coordination. The desired [2]catenanes were obtained within minutes through a five-component assembly, involving a donor-containing crown ether, an acceptor-containing ligand, two Pd(II) metal centers, and a dipyridyl ligand. The [2]catenane formation was characterized by 1H NMR and UV-vis spectroscopies and cold-spray ionization mass spectrometry. In particular, great translational selectivity was observed when a crown ether with two different donor units was employed.

Publication types

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

MeSH terms

  • Catenanes / chemical synthesis*
  • Catenanes / chemistry
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis*
  • Organometallic Compounds / chemistry
  • Palladium / chemistry*
  • Spectrophotometry, Ultraviolet

Substances

  • Catenanes
  • Ligands
  • Organometallic Compounds
  • Palladium