Diversity Oriented Preparation of Pillar[5]arene‐Containing [2]Rotaxanes by a Stopper Exchange Strategy
Iwona Nierengarten, Jean‐François Nierengarten
Abstract
Rotaxane building blocks bearing 3,5-bis(trifluoromethyl) benzenesulfonate (BTBS) stoppers have been efficiently prepared from a pillar[5]arene derivative, 3,5-bis(trifluoromethyl) benzenesulfonyl chloride (BTBSCl) and different diols, namely 1,10-decanediol and 1,12-dodecanediol. The BTBS moieties of these compounds are good leaving groups and stopper exchange reactions could be achieved by treatment with different nucleophiles thus affording rotaxanes with ester, thioether or ether stoppers.
Topics & Concepts
RotaxaneTrifluoromethylThioetherNucleophilePillarChemistryEtherDerivative (finance)Polymer chemistryChlorideOrganic chemistrySupramolecular chemistryMoleculeCatalysisEconomicsFinancial economicsEngineeringStructural engineeringAlkylSupramolecular Chemistry and ComplexesMolecular Sensors and Ion DetectionAdvanced NMR Techniques and Applications