13 C-nmr Studies of Cedranolides
✍ Scribed by Joseph-Nathan, P.; Gutiérrez, A.; Hernández, J. D.; Román, L. U.; Santillan, R. L.
- Book ID
- 126826566
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 760 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0163-3864
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13C NMR chemical shifts were measured in for Ñuorocarbonyl compounds. Sulfonic DMSO-d 6 derivatives display 4J(C,F) coupling constants for carbonyl groups which are also obtained from non-sulfonic derivatives when they are recorded in acidic solution.
The "C chemical shifts of 22 methylated ribonucleosides and deoxyribonucleosides have been measured and assigned. The chemical s h i f t ditierences between methylated and unmodified nucleosides are correlated with their characteristic modifications of structure. The significance of the chemical shi