## Abstract The ^13^C NMR spectra of 18 guaianolides have been measured and the chemical shifts assigned. The compounds investigated include the naturally occurring eremanthin (1), dehydrocostus lactone, eregoyazin, eregoyazidin and other semisynthetic lactones derived from 1. Qualitative analysis
13C-NMR. Spectra of Natural and Semi-synthetic Cannabinoids
✍ Scribed by Michael Binder; Ingo Franke; Burkhard Schmidt; Wolfgang Dietrich
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- German
- Weight
- 269 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The ^13^C‐NMR. spectra of one natural and ten semi‐synthetic cannabinoids were analyzed in detail. Assignments of the signals are based on their chemical shifts, splitting patterns in ^1^H‐off‐resonance decoupling experiments and comparison with ^13^C‐NMR. data of related cannabinoids. With some compounds final assignments were made by selective ^1^H‐decoupling experiments and incremental calculations.
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