The structure of chiloscypholone, a sesquiterpenoid with a novel carbon skeleton, from the liverwort Chiloscyphus pallescens. A revised structure for chiloscyphone
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 21,p. 1236-1238
- https://doi.org/10.1039/c39820001236
Abstract
Chiloscypholone, a bicyclic sesquiterpenoid from the liverwort Chiloscyphus pallescens, is shown to have the structure (3), with a novel ring-contracted eremophilane skeleton, on the basis of chemical and spectroscopic (mainly from 1H and 13C n.m.r. spectra) evidence; dehydration of (3) gives two isomeric dienones, one of which is chiloscyphone, originally isolated from C. polyanthus, now assigned the revised structure (4).Keywords
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