13C-n.m.r. spectra of cyclomalto-oligosaccharides (cyclodextrins), their derivatives, and complexes with azo dyes
β Scribed by Miyoko Suzuki; Hitoshi Takai; Jozsef Szejtli; Eva Fenyvesi
- Book ID
- 107725994
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 821 KB
- Volume
- 201
- Category
- Article
- ISSN
- 0008-6215
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π SIMILAR VOLUMES
In the circular-dichroism spectra of inclusion complexes of 7 types ofcyclodextrin (CDs) with 6 kinds of azo dyes containing the naphthalene nucleus, the direction of inclusion and the stacking mode may be elucidated from patterns in the U.V. and the first n+z\* regions. The patterns in the former r
## Abstract The ^13^C n.m.r. spectra of some dimeric __Catharanthus__ alkaloids are reported and assigned. Methods devised to aid in the assignment of resonances in complex molecules are described. The ^13^C n.m.r. spectra of several derivatives of vinblastine are discussed.
The complete assignments of the 'H and I3C NMR spectra of a-, /?and y-cyclodextrins (CDs) and their permethylated derivatives were derived from dedicated experiments. Existing literature data were complemented with detailed analyses, including unequivocal assignment of the methoxy groups. The struct