This pseudorotaxane was then stoppered by reaction with 4-tritylphenyl isocyanate to give the first example of calixarene-based [3]rotaxane 5 in 72% yield (Scheme 1).
This pseudorotaxane was then stoppered by reaction with 4-tritylphenyl isocyanate to give the first example of calixarene-based [3]rotaxane 5 in 72% yield (Scheme 1).