**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 a
Inhaltsstoffe des Osmanthus-Absolues. 2. Mitteilung: 2,7-Epoxy-megastigma-4,8(E)-dien
✍ Scribed by Roman Kaiser; Dietmar Lamparsky
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- German
- Weight
- 228 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Constituents of Osmanthus Absolute, 2nd communication: 2,7‐Epoxy‐megastigma‐4,8 (E)‐diene
The characteristic fragmentation pattern in the mass spectrum of 2,7‐epoxy‐dihydro‐α‐ionone bearing a new oxabridged ionone skeleton has lead to the identification of a further trace component in Osmanthus absolute, the 2,7‐epoxy‐megastigma‐4,8(E)‐diene. The synthesis was performed in three steps starting from the above mentioned new ionone derivative now synthetically available by base treatment of 2‐hydroxy‐α‐ionone [1].
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