13C NMR spectral analysis of eperuane diterpenes
✍ Scribed by Paulo M. Imamura; Anita J. Marsaioli; Lauro E.S. Barata; Edmundo A. Rúveda
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 360 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0031-9422
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The diterpene trachylobane and a series of derivatives have been completely analysed by FT ^13^C NMR spectroscopy. All ^13^C frequencies for trachylobanol have been unambiguously assigned by experimental techniques, i.e. by proton single‐frequency selective decoupling and shift reagent
## Abstract The ^13^C NMR chemical shifts of nine acetoxyxanthones are reported and identified. The acetoxy substituent effects have been evaluated and the corresponding shift increments proposed.
The complete assignment of the carbon NMR spectra for 14 N-arylphthalisoimides was achieved using the concerted application of one-and two-dimensional NMR techniques. The parameters previously reported in the literature were found to be wrong.