Synthesis, structure elucidation and functionalization of sulfonamide catenanes†
Novel sulfonamide catenanes were successfully prepared through a self-templation approach. The catenated skeletons were confirmed by traveling-wave ion-mobility spectrometry (TWIMS) combined with gradient tandem mass spectroscopy (gMS2). Moreover, two pyrene units were further introduced into the catenane through the alkylation reaction of the sulfonamide moieties, resulting in the successful synthesis of a novel pyrene-functionalized catenane which displayed a switchable optical output controlled by cation-induced conformation transformation.
- This article is part of the themed collection: Macrocycle-based Supramolecular Elements