Synthesis and Inclusion Properties of a Upper-rim-connected Biscalix[4]arene
The conformationally-immobile biscalix[4]arene was synthesized by connecting the upper rims with two spacers. It showed high inclusion ability and selectivity for quaternary ammonium ions. A comparison with reference compounds established that the enhanced selectivity is due to the cooperative actio...
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| Veröffentlicht in: | Chemistry letters 2000, Vol.29 (1), p.20-21 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The conformationally-immobile biscalix[4]arene was synthesized by connecting the upper rims with two spacers. It showed high inclusion ability and selectivity for quaternary ammonium ions. A comparison with reference compounds established that the enhanced selectivity is due to the cooperative action of two bowl-shaped calix[4]arenes. |
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| ISSN: | 0366-7022 1348-0715 |
| DOI: | 10.1246/cl.2000.20 |