✦ LIBER ✦
Carbon-13 spectra of polycyclic systems Tricyclo[3.2.1.02,7]octanes as models for some tetracyclic sesquiterpenes and pentacyclic diterpenes. Ishwarane and trachylobane derivatives
✍ Scribed by R. M. Cory; J. B. Stothers
- Book ID
- 102950566
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 650 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The ^13^C spectra of tricyclo[3.2.1.0^2,7^]octane, its 1,5‐dimethyl derivative and ten tricyclo[3.2.1.0^2,7^]octan‐6‐ones have been recorded as model compounds to aid the interpretation of the spectra of the naturally occurring polycyclic terpenes, ishwarane, ishwarone, ishwarol and methyl trachylobanate. The assignments for specific carbons in this series are based on the internal consistency of the observed shielding trends together with the effects of shift reagent on the shieldings of some of these derivatives.