Author:
Sejbal Jan,Klinot Jiří,Hrnčířová Daniela,Vystrčil Alois
Abstract
The reaction of 3-oxo derivative I and 1-oxo derivative XII of 19β,28-epoxy-18α-oleanane with peracids leads to corresponding lactones II or XIII, respectively, which were converted to A-seco acids III, V, and XIV and esters IV, VI, VII, and XV. Under acid catalysis oxidation of ketone I results in the degradation of one methyl group in position 4 and formation of compounds VIII and IX. On reaction with 3-chloroperbenzoic acid the α,β-unsaturated ketone XVI gives epoxyketone XVII.
Publisher
Institute of Organic Chemistry & Biochemistry
Cited by
15 articles.
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