The Self‐Assembly of Catenated Cyclodextrins

Abstract

The Schotten–Baumann reaction between a diamine with a central bitolyl unit and terephthaloyl chloride in the presence of heptakis(2,6-di-O-methyl)-β-cyclodextrin (DM-β-CD) in dilute solution affords the [2]catenanes 1 and 2 as well as two analogous [3]catenanes, in which two DM-β-CD units are threaded on a tetrakislactam ring. In catenane 1 the bitolyl unit is found to be situated inside the Cyclodextrin torus.