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  • 1990-1994  (2)
  • 1,2,4-Trioxolanes  (1)
  • Bullvalenes, mono-, di-, tri-, tetra-, penta-, and hexaphenyl-  (1)
  • General Chemistry
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 191-195 
    ISSN: 0009-2940
    Keywords: Ozonolysis ; Alkylidenecycloalkanes ; Carbonyl oxides ; 1,2-Dioxolanes ; 1,2,4-Trioxolanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis of 1,2-Dioxolanes by Ozonolysis of 1,1-Disubstituted Nonactivated OlefinsOzonolyses of the cyclopropyl-substituted olefins 2a, 2b, and 2c do not produce the carbonyl oxides 1a, 1b, and 1c but formaldehyde oxide (1d); 1d can be trapped by the starting olefin and provides the 1,2-dioxolanes 6a, 6b, and 6c, respectively, in ca. 10% yield. Other dioxolanes and normal ozonides may be obtained by the addition of olefins or aldehydes to solutions of the primary ozonides of 2a and 2b.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 1429-1433 
    ISSN: 0009-2940
    Keywords: Cope rearrangement ; Bullvalenes, mono-, di-, tri-, tetra-, penta-, and hexaphenyl- ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Mono-, Di-, Tri-, Tetra-, Penta-and HexaphenylbullvalenesLithium diphenylcuprate reacts with the corresponding bromobullvalenes to yield the phenylbullvalenes 1-6, whose substitution patterns are deduced from their 1H-NMR spectra. Starting with triphenylbullvalenes 3 some isomers show a relatively high kinetic stability which culminates in the case of the hexaphenylbullvalenes 6a and 6b in the loss of the phenomenon of fluctuating structure for the bullvalene skeleton.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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