Construction of a hetero pseudo[2]rota[2]catenane

A novel ammonium template containing three ammonium sites was synthesized. Two ammoniums located on the linear component served as template for cucurbit[6]uril to form the CB-based pseudo[2]rotacane while another one located on the macrocyclic component played a role of template for clipping reaction. As a result of a “threading-followed-by-clipping” approach, a novel hetero pseudo[2]rota[2]catenane was successfully constructed.

Graphical abstractA hetero pseudo[2]rota[2]catenane with novel topological structure was constructed by use of a “threading-followed-by-clipping” approach.Figure optionsDownload full-size imageDownload as PowerPoint slide