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Stimulated by cyclodextrins high yield synthesis of azocrown analogues comprising pyrrole or imidazole residues
Abstract
The influence of cyclodextrins (CDs) on the formation of azocrown ethers comprising pyrrole, imidazole and substituted imidazole has been studied. Pyrrole, imidazole, 2-methyl-, 4-methyl- and 4-phenylimidazole were coupled with bisdiazonium salts derived from bis-1,5-(2-aminophenoxy)-3-oxapentane or bis-1,8-(2-aminophenoxy)-3,6-dioxaoctane to form macrocyclic compounds with two azo units. The syntheses were performed under standard conditions in the presence of a-, b- or g-CDs and the yield of the reaction products was compared with the results of plain experiments, i.e. without CDs. The results are discussed in terms of co-conformation of azole molecules embedded in CD cavity.
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Details
- Category:
- Magazine publication
- Type:
- Magazine publication
- Published in:
-
SUPRAMOLECULAR CHEMISTRY
no. 20,
edition 8,
pages 717 - 722,
ISSN: 1061-0278 - Publication year:
- 2008
- DOI:
- Digital Object Identifier (open in new tab) doi: 10.1080/10610270701767311
- Verified by:
- No verification
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