Synthetic Approaches to a Molecular Borromean Link: Two‐Ring Threading with Polypyridine Templates

Abstract

“One ring to bind them”: The Borromean link, which consists of three rings connected such that no two are concatenated, is a challenging synthetic target. The synthesis of an orthogonal two-ring system that could be a precursor for such a link was prepared from a polypyridine template (see picture).