A 13C N.M.R. Study of Some Oxygenated Hopane Triterpenes
- 1 January 1987
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 40 (10) , 1713-1721
- https://doi.org/10.1071/ch9871713
Abstract
Chemical shift assignments are reported for some hopane triterpenoids variously oxygenated at C3, C6, C7, C15, C22 and/or C24. Substituent group effects are compared and correlated with a local symmetry axis. Revisions to a recently reported interpretation of the 13C n.m.r. spectrum of 7β-acetoxyhopan-22-ol (1c) are described.Keywords
This publication has 3 references indexed in Scilit:
- Lichens and fungi. Part 17. The synthesis and absolute configuration at C-20 of the (R)- and (S)-epimers of some 29-substituted lupane derivatives and of some 30-norlupan-20-ol derivatives and the crystal tructure of (20R)-3β-acetoxylupan-29-ol.Journal of the Chemical Society, Perkin Transactions 1, 1985
- Triterpenes from the lichen genus PhysciaAustralian Journal of Chemistry, 1982
- The structure of amphistictinic acid, a triterpenoid constituent of the lichen Pseudocyphellaria amphistictaAustralian Journal of Chemistry, 1978