ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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 1986 (1986), S. 1222-1240 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Introduction of Functional Groups into the Seven-membered Ring of AzuleneSubstitution in 4- and 6-position of azulene (1) is extended by new nucleophiles (work-up with dehydrogenation): Lithiated methylphosphonates and formaldehyde dithioacetals yield 4- and 6-azulenylmethylphosphonic esters 4 - 7, and 4- and 6-azulenecarbaldehyde dithioacetals 11, 15, and 25. Their cleavage leads to the corresponding aldehydes. More conveniently, 4- and 6-azulenecarbaldehyde (23 and 27) are synthesized via the reaction of 1 with lithium (diethylamino)acetonitrile. The dependence of 4/6-substitution from the nucleophile is discussed.
    Notes: Die Substitution in 4- und 6-Position des Azulens (1) wird durch Einsatz neuer Nucleophile (dehydrierende Aufarbeitung) erweitert: Lithiierte Methylphosphonsäureester und Formaldehyd-dithioacetale liefern die 4- und 6-Azulenylmethylphosphonsäureester 4 - 7 und 4- und 6-Azulencarbaldehyd-dithioacetale 11, 15 und 25. Diese lassen sich zu den entsprechenden Aldehyden spalten. Zweckmäßiger werden 4- und 6-Azulencarbaldehyd (23 und 27) über die Reaktion von 1 mit Lithium-(diethylamino)acetonitril synthetisiert. Das Verhältnis 4:6-Substitution in Abhängigkeit vom Nucleophil wird diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...