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 ...

Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, and Precursory Research for Embryonic Science and Technology (PRESTO), ...