Methods for selective modifications of cyclodextrins
Article Abstract:
Techniques for the modification of cyclodextrins, particularly those in which the number and the exact locations of modifications are known and pure compounds with unambiguous structures are derived, are reviewed. Methods involved in primary face modification include monosubstitution at the 6-position of cyclodextrins, disubstitution at the 6-position of cyclodextrins and trisubsitution at the 6-position of cyclodextrins. Techniques involving secondary face modification include monosubstitution at the 2-position of cyclodextrins and disubstitution at the 2-position of cyclodextrins.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1998
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Cyclodextrin-based catenanes and rotaxanes
Article Abstract:
Studies involving the mechanically-interlocked compounds of rotaxanes and catenanes which utilize cyclodextrins as one of their ring components are reviewed. The three mechanisms for the formation of rotaxanes are cyclodextrin-based pseudorotaxanes, rotaxanes with stoppers connected by coordinative or ionic bonds and cyclodextrin-containing (2)rotaxanes with covalently bound stoppers. Cyclodextrin-containing polyrotaxanes are either inclusion complexes of polymers with cyclodextrins, linear-chain cyclodextrin-based polyrotaxanes or side-chain cyclodextrin-based polyrotaxanes.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1998
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