Library

feed icon rss

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
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3781-3792 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Asteranes, XIII Synthesis of Tetraasterane by Photodimerisation of 3,6-Dihydrophthalic AnhydrideThe cage dimeric tetraasteranetetracarboxylic dianhydride 8 as well as the open trans dimers 6 and 7 have been isolated among monomeric products (2-4) on irradiation 3,6-dihydrophthalic anhydride (1) in ether, acetone, and dioxane. Unsubstituted tetraasterane (pentacyclo-[6.4.0.02,7. 0.4,11 0.5,10]dodecane, 14, is obtained by degradation of tetraasterane-1,4,5,8-tetracarboxylic acid (12) with lead tetraacetate and N-chlorosuccinimide via the tetrachlorotetraasterane 13. The structures of 6 and 12 have been confirmed by X-ray analysis. The influence of substituents on fragmentation patterns of tetraasterane derivatives in the mass spectrometer is indicated.
    Notes: Bei der Belichtung von 3,6-Dihydrophthalsäure-anhydrid (1) in Äther, Aceton und dioxan werden neben monomeren Produkten (2-4) das käfigdimere Tetraasterantetracarbonsäure dianhydrid 8 sowie die offenen trans-Dimeren 6 und 7 isoliert. Der Abbau von Tetraasteran-1,4,5,8-tetracarbonsäure (12) mit Bleitetraacetat und N-Chlorsuccinimid ergibt über das Tetrachlortetraasteran 13, das unsubstituierte Tetraasteran (Pentacyclo[6.4.0.02,7 0.4, 110.5,10]dodecan,14, Die Strukturen von 6 und 12 wurden durch Röntgenanalyse bestätigt. Der Substituenteneinfluß auf den Zerfall von Tetraasteranderivaten im Massenspektrometer wird angedeutet.
    Additional Material: 2 Ill.
    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...