New 13C NMR Methods for Determining the Structure of Algal Polysaccharides. Part 1. The Effect of Substitution on the Chemical Shifts of Simple Diad Galactans
β Scribed by Miller, I. J.; Blunt, J. W.
- Book ID
- 111682508
- Publisher
- Walter de Gruyter GmbH & Co. KG
- Year
- 2000
- Tongue
- English
- Weight
- 160 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0006-8055
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π SIMILAR VOLUMES
The polysaccharide from Cladhymenia oblongifolia and some of its derivatives have been examined by 13 C nuclear magnetic resonance spectroscopy and the spectra analysed with the techniques of set theory. The polysaccharide is an agaroid with significant levels of sulfation at most positions other th
## Abstract The ^13^C NMR chemical shifts for 1,3βdithiolane and 13 methyl substituted derivatives are reported. Substituent effects are derived and compared with those for cyclopentanes and 1,3βdioxolanes. The magnitude and variety of the substituent effects are best explained with the aid of a ha