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Inhaltsstoffe des Osmanthus-Absolues. 5. Mitteilung. (8E)-4, 7-Epoxymegastigma-5(11),8-dien

✍ Scribed by Roman Kaiser; Dietmar Lamparsky

Publisher
John Wiley and Sons
Year
1979
Tongue
German
Weight
593 KB
Volume
62
Category
Article
ISSN
0018-019X

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✦ Synopsis

Constituents of Osmanthus absolute, 5th communication. (8**E****)‐4,7‐Epoxymegastigma‐5(11),8‐diene**

The title compound 1 has been identified as trace constituent in Osmanthus absolute. The synthesis of 1 was performed by reaction of α‐ionone‐epoxide (4) with aluminum tri (isopropylate) in 2‐propanol at 130°. Besides 1 we found another bicyclic ether 5 in the lower boiling part of the reaction mixture, and ten further substances with interesting structural features from the less volatile part. Formation mechanism as well as some spectral particularities are discussed in more detail.

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