Premium
Carbon‐13 spectra of polycyclic systems Tricyclo[3.2.1.0 2,7 ]octanes as models for some tetracyclic sesquiterpenes and pentacyclic diterpenes. Ishwarane and trachylobane derivatives
Author(s) -
Cory R. M.,
Stothers J. B.
Publication year - 1978
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270110507
Subject(s) - terpene , chemistry , octane , reagent , derivative (finance) , spectral line , organic chemistry , computational chemistry , stereochemistry , medicinal chemistry , physics , financial economics , economics , astronomy
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.