Inclusion complexes between 3,3-substituted [n]staffanes and beta-cyclodextrin in water.

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Title in English Inclusion complexes between 3,3-substituted [n]staffanes and b-cyclodextrin in water.
Authors

BARTOŠ Petr MAZAL Ctibor

Year of publication 2004
Type Article in Proceedings
Conference Chemické listy
MU Faculty or unit

Faculty of Science

Citation
Web http://www.vscht.cz/chem_listy/
Field Organic chemistry
Keywords bicyclopentanes; staffanes; cyclodextrin; NMR
Description Axially substituted [n]staffanes I form inclusion complexes with beta-cyclodextrin (II) in water. 1H NMR spectrum of a water solution of â-cyclodextrin II has shown apparent changes of chemical shifts of intracavity protons H-3 and H-5 upon addition of [2]staffane-3,3-diol (Ia)into the solution. Nuclear Overhauser effect has been observed between beta-cyclodextrin protons H-3, H-5 and bridge protons of the diol Ia. The method of continuous variations applied to the both complexation sensitive chemical shifts revealed formation of host-guest complex of 1:1 stoichiometry.
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