Library

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1984 (1984), S. 1785-1790 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Further Eremophilane DerivativesStarting with suitable octalin derivatives two further eremophilane derivatives (9 and 13) isolated from Euryops species were synthesized via the epoxides 5 and 6 by regiospecific ring opening with isopropenylmagnesium bromide in the presence of copper(I) iodide followed by appropriate transformation of the eremophilanes obtained. While the preparation of the racemic ketone 9 caused no problems, the corresponding 2α-hydroxy derivative in the trans-decalin series could not be obtained in satisfactory yields. The configurations of the natural compounds have now finally been elucidated.
    Notes: Ausgehend von geeigneten Octalin-Derivaten werden zwei aus Euryops-Arten isolierte Eremophilan-Derivate (9 und 13) über die Epoxide 5 und 6 durch regiospezifische Ringöffnung mit Isopropenylmagnesiumbromid in Gegenwart von Kupfer(I)-iodid und entsprechende Umwandlung der erhaltenen Eremophilane synthetisiert. Während die Darstellung des racemischen Ketons 9 keine Probleme bereitet, konnte das entsprechende 2α-Hydroxy-Derivat in der trans-Decalin-Reihe nicht in befriedigenden Ausbeuten erhalten werden. Die Konfigurationen der Naturstoffe sind damit endgültig geklärt.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...