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  • 1980-1984  (3)
  • Chemistry  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 325 (1983), S. 283-292 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On the Pyrolysis of 1-14C-Pent-1-eneIn the thermal decomposition of 1-14C-pent-1-ene at 550 to 650°C a mixture of saturated and olefinic hydrocarbons ≤ C6 is formed. The reaction products were analyzed by gaschromatography, the distribution of radioactivity in the main products by radio gaschromatography.The results are discussed on the basis of a conventional radical reaction scheme including 1.4- and 1.5-H-shifts in intermediate alkyl and alkenyl radicals. The distribution of pyrolysis products and of their radioactivity allows a semiquantitative description of the complex decomposition of n-pent-1-en.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 325 (1983), S. 375-381 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On the Pyrolysis of Pent-1-ene-3,3-d2The distribution of deuterium in the main products of the thermal decomposition of pent-1-ene-3,3-d2 at 550 to 650°C was studied and interpreted. The results include conclusions on kinetic isotope effects, on relative reactivities of different C—H-bonds, and on the importance of nonterminal radical addition. It is shown that butadiene-d2 detected in the isotopically labeled butadiene fraction is a reliable target molecule for the homoallylic rearrangement of the pent-1-ene-4-yl-3,3-d2 radical.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 325 (1983), S. 699-707 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On the Pyrolysis of Pent-1-ene-4,4,5,5,5-d5The distribution of deuterium in the main products of thermal decomposition of pent-1-ene-4,4,5,5,5-d5 at 550 to 650°C was studied and interpreted. The results include conclusions on kinetic isotope effects, on relative reactivities of different C-H-bonds, on the proportion of terminal and nonterminal addition of methyl radicals, and on the importance of a radical isomerisation reaction. It was shown that the molecular decomposition (Retro-En-Reaction) cannot successfully compete with the radical way in the temperature range above 600°C
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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