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  • Chemistry  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 575 (1989), S. 90-96 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of NN-Dihaloperfluoroalkaneamines with Sulfur and Sulfur DerivativesReactions of NN-Dihaloperfluoroalkaneamines RfNX2 (Rf = CF3, C2F5; X = Cl, Br) with S8, S4N4 and A = SX2 (A = RfN, O) are described. The products isolated are: Sulfurdihalideimides RfNSX2 (Rf = CF3, C2F5; X = Cl, Br), Sulfurdiimides RfNSNRf and Bis(sulfurdiimido)sulfides (RfNSN)2S(Rf = CF3, C2F5). Thionylimides RfNSO were not obtained in preparative quantities.
    Notes: Umsetzungen der NN-Dihalogenperfluoralkanamine RfNX2 (Rf = CF3, C2F5; X = Cl, Br) mit S8, S4N4 und A = SX2 (A = RfN, O) werden beschrieben. Dabei lassen sich als Produkte isolieren: Schwefeldihalogenidimide RfNSX2 (Rf = CF3, C2F5, X = Cl, Br), Schwefeldiimide RfNSNRf und Bis(schwefeldiimido)sulfide (RfNSN)2S (Rf = CF3, C2F5). Thionylimide RfNSO sind auf diesem Wege nicht in präparativem Maßstab zugänglich.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: cis-10-Chloro-N-methyl-decahydro-isoquinoline (5) and its trans-isomer 6 undergo heterolytic fragmentation in 80% ethanol by different mechanisms. As predictable on stereo-chemical grounds the cis-isomer 5 reacts by the accelerated synchronous mechanism, the trans-isomer 6, however, by the two-step carbonium ion mechanism. Synchronous fragmentation therefore dominates over the two-step process even when the latter would lead to a relatively stable tertiary carbonium ion. In both cases the more highly substituted and thermochemically more stable olefinic fragment 8 is formed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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