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Inhaltsstoffe des Osmanthus-Absolues. 1. Mitteilung: 2,5-Epoxy-megastigma-6,8-dien

✍ Scribed by Roman Kaiser; Dietmar Lamparsky

Publisher
John Wiley and Sons
Year
1978
Tongue
German
Weight
611 KB
Volume
61
Category
Article
ISSN
0018-019X

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✦ Synopsis

Constituents of Osmanthus Absolute, Ist communication:2,5‐Epoxy‐megastigma‐6,8‐dienes

Besides some further ionone derivatives we identified two new bicyclic oxacompounds (1a/1b) of the megastigmane type in the Osmanthus absolute. Isolation, special features of their spectral datas and synthesis starting from ethyl α‐safranate are described. The synthetic pathway choosen allowed the additional identification of four substances occurring in the same natural substrate, because some synthetic by‐products formed int he reaction sequence exhibited corresponding spectra and GLC. retention as the hitherto unknown components of the Osmanthus absolute.

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