Captands: Macropolycyclic hosts via crown ether capping reactions

@inproceedings{Fyles1990CaptandsMH,
  title={Captands: Macropolycyclic hosts via crown ether capping reactions},
  author={T M Fyles and Valia Veetle Suresh and Frank R Fronczek and Richard D Gandour},
  year={1990}
}
The reaction of meta- and para-xylylene diamine with a crown ether tetraearboxylic acid chloride gives macrotricylic tetra amide hosts in high yield. A similar reaction of diamines with the related bis-anhydride gives bicyclic diamide/diacid hosts.