Triphenylphosphonium-stoppered [2]rotaxanes

Stuart J. Rowan, Stuart J. Cantrill, J. Fraser Stoddart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


(equation presented) The template-directed syntheses of two [2]rotaxanes, one carrying one and the other two triphenylphosphonium stoppers, have been achieved using a threading-followed-by-stoppering approach. Either one or two benzylic bromide functions-located at the para-positions of dibenzylammonium-based ions, which become encircled by dibenzo[24]crown-8 macrocycles during the initial thermodynamically controlled phases that mark the recognition events-serve as sites for nucleophilic attack by triphenylphosphine during the subsequent kinetic stages that lead to the formation of the two [2]rotaxanes.

Original languageEnglish
Pages (from-to)129-132
Number of pages4
JournalOrganic Letters
Issue number1
Publication statusPublished - 1999 Jul 15
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Medicine


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