Naturally occurring quinones. Part XXII. Terpenoid quinones in Cordia spp.
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1352-1357
- https://doi.org/10.1039/p19730001352
Abstract
Cordiachromes A–F are terpenoid benzoquinones isolated from the heartwood of Cordia millenii. Cordiachrome C (3; R = H) has a benzogeijerene and A (1; R = H) and B (2; R = H) have a benzocogeijerene skeleton. Cordiachromes D–F are methoxy-derivatives of A–C, respectively. All six are optically inactive. Biogenetically they appear to be related to alkannin, which occurs in the same family (Boraginaceae). The distribution of cordiachromes in other Cordia spp. is surveyed.Keywords
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