Phosphorus-containing [2]catenanes as an example of interlocking chiral structures

Article abstract of DOI:10.1002/anie.200503625

The missing link: Chiral catenanes have been obtained by including prochiral phosphorus centers in both rings of a [2]catenane moiety. These compounds, which also contain stereogenic carbon atoms, have been prepared by the well known copper(I) template synthesis and have been isolated as enantiomerically pure, single diastereoisomers. (Figure Presented).