Title

Complexation of ephedrine with β-cyclodextrin: An NMR spectroscopy study

Document Type

Article

Publication Date

3-1-1993

Abstract

This study focuses on the inclusion complex of ephedrine with β-CD. The association of β-CD and ephedrine has been examined using1H NMR and circular dichroism. The systematic shifts of the proton resonances of the phenyl moiety of ephedrine and that of the protons located inside the β-CD cavity, provide evidence of intracavity inclusion. Two-dimensional ROESY show preferential localization of ephedrine in close proximity with protons located inside the β-CD cavity. The systematic variation of circular dichroism spectra with increasing concentration of β-CD is used to estimate the apparent formation constant. © 1993 Kluwer Academic Publishers.

Publication Source (Journal or Book title)

Journal of Inclusion Phenomena and Molecular Recognition in Chemistry

First Page

9

Last Page

25

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