Chemistry Letters, Vol.33, No.1, 52-53, 2004
Dynamic covalent chemistry in rotaxane synthesis. Slipping approach to [2]rotaxane utilizing reversible cleavage-rebondage of trityl thioether linkage
A [2]rotaxane was synthesized in a high yield from a dumbbell-shaped sec-ammonium salt having trityl thioether and 3,5-di-t-butylphenyl groups at the both ends and dibenzo-24-crown-8-ether, through the slipping, utilizing the reversible cleavage-rebondage of the trityl thioether linkage.