Recognition of bipyridinium-based derivatives by hydroquinone- and/or dioxynaphthalene-based macrocyclic polyethers: from inclusion complexes to the self-asembly of [2]catenanes

摘要

A range of π-electron-rich macrocyclic polyetehrs incorporating dioxybnzene (hydroquinone) and/ or dixynaphthalene units have been synthesized in good yields by simple two-step procedures. Thehse macrocycles are able to bind bipyridinium-based guests as a result of a series iof cooperative Noncovalent bonding interactions. These molecular recognition events can be extended to the self- Assemb ly of [2]catenanes incorporating the bipyridinium-based cyclophane, cyclobis(paraquat-p- Phenylene), and the macrosyclic polyethers incorporating dioxybenzene and -naphthalene unites.