Front Cover: Diversity Oriented Preparation of Pillar[5]arene‐Containing [2]Rotaxanes by a Stopper Exchange Strategy (ChemistryOpen 4/2020).

Front Cover: Diversity Oriented Preparation of Pillar[5]arene-Containing [2]Rotaxanes by a Stopper Exchange Strategy (ChemistryOpen 4/2020) Keywords: rotaxanes; pillar[5]arenes; arylsulfonate; stopper exchange; supramolecular chemistry EN rotaxanes pillar[5]arenes arylsulfonate stopper exchange supramolecular chemistry 386 386 1 04/30/20 20200401 NES 200401 B The Front Cover b shows a rotaxane incorporating a pillar[5]arene macrocyclic moiety and an axle substituted with two 3,5-bis(trifluoromethyl) benzenesulfonate (BTBS) leaving groups. Rotaxanes, pillar[5]arenes, arylsulfonate, stopper exchange, supramolecular chemistry. [Extracted from the article]