† Barrer Centre, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. ‡ Department of Materials, Imperial College London, South Kensington Campus, ...

A synthesis of [2]rotaxanes in which Zn(II) or Cu(II) Lewis acids catalyze a Diels−Alder cycloaddition to form the axle while simultaneously acting as the template for the assembly of the interlocked ...