Abstract
An approach to the synthesis of a rotaxane that relies upon the supramolecular hydrogen bonding-assistance inherent in the recognition between an appropriately-functionalized secondary dibenzyl-ammonium cation and the cavity of a crown ether is described. It is discovered that this rotaxane undergoes covalent modification when subjected to a Wittig reaction. Furthermore, by utilizing hydrogen bonding to assemble rotaxane which contains an aldehyde function on the crown ether component, a monomer have been prepared that undergoes cyclization under dilute conditions to form dimeric macrocyclic `daisy chain' compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 1119-1120 |
| Number of pages | 2 |
| Journal | Unknown Journal |
| Volume | 40 |
| Issue number | 2 |
| Publication status | Published - 1999 Aug |
| Externally published | Yes |
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ASJC Scopus subject areas
- Polymers and Plastics
Cite this
Rowan, S. J., Cantrill, S. J., & Fraser Stoddart, J. (1999). Wittig reactions on phosphonium-stoppered [2]rotaxanes. A new route to macromolecular daisy chains? Unknown Journal, 40(2), 1119-1120.