The separation of substituted Olean-12-en-28-oic acids from the corresponding Urs-12-en-28-oic acid isomers
- 1 January 1983
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 36 (11) , 2297-2305
- https://doi.org/10.1071/ch9832297
Abstract
Naturally occurring pairs of hydroxy-substituted olean-12-en-28-oic and urs-12-en-28-oic acids may be separated by treatment of the mixture with bromine in acetic acid. Members of the ursene family are inert under the conditions used. It is shown that a similar separation is possible with the 12-en-28-ol system. The leaf of Duboisia myoporoides was examined for possible variation of ursolic acid content with location.Keywords
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