Redox‐Active Dendrimer‐Like Oligoguanidines and Their Use in a Proton‐Coupled Electron Transfer Reaction

Redox-active organic dendrimers are of interest for a variety applications, e. g. as components in optoelectronic devices and energy-storage (battery) materials, were also used to model enzymatic reactivity. Here, we report the first synthesis redox-active dendrimer-like oligoguanidines, assembling six or twelve guanidino groups attached aromatic cores one molecule. The novel being strong electron donors, characterized their stable (neutral dicationic) redox states. Redox processes occur preferrentially at core, while periphery provides highly Brønsted basic sites. combined proton acceptor properties molecules oxidized dicationic state motivate applications proton-coupled transfer (PCET) processes. In this work, test application representative intramolecular oxidative aryl-aryl coupling reaction.