Maximizing the [ c2]daisy chain to lasso ratio through competitive self-templating clipping reactions

Chem Commun (Camb). 2021 Dec 23;58(2):290-293. doi: 10.1039/d1cc05942d.

Abstract

Self-templating two-component coupling reactions allowed the isolation of two threaded products with different molecular sizes: a lasso-type [1]rotaxane and a [c2]daisy chain rotaxane. Their distribution in the final reaction mixture varies as a factor of the concentration of the reactants. Through this methodology we obtained a large 84-membered cyclic multistation [2]rotaxane.