Cyclodextrin catenanes

Such specific ligand systems as catenanes [968], calixarenes [969], fullerenes [970a,b], and cyclodextrines [971], and functionalized dendrimers [972a-d] are of great interest. Thus, on the basis of fullerenes C60 and C80 were obtained metal-cyclo-pentadienyl and metal-carbonylcyclopentadienyl compounds with rj1 - and r 5-coordination bonds [970b]. 

In an attempt to increase the number of useful components for construction of new catenanes, the Stoddart group recognised that cyclic sugars of the cyclodextrin type were promising candidates. ... 

Figure 5.24 Self-assembled [2]-catenanes based on methylate cyclodextrin ...

Cyclodextrin-based catenanes and rotaxanes, S. A. Nepogodiev and J. F. Stoddart,... 

Figure 3-7 Template-directed synthesis of the cyclodextrin-containing catenanes 25-28.

Cyclodextrin catenanes were synthesized for the first time by Stoddart s group in 1993 [66, 67] (Fig. 12.7). The molecular thread consisted conceptually of three parts, a hydrophobic aromatic core bearing on either side hydrophilic arms ending with amino groups that were dipped together by reaction with terephthaloyl chloride as in 13. 

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