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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 1657-1664 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metalation of a Non-activated Alkyl Group in Nickel ComplexesThe diazadiene (DAD)glyoxalbis(diisopropylmethylimine) (1) reacts with anhydrous nickel bromide to yield (DAD)NiBr2 (2). Its reactions with main group metal alkyls lead to rather unstable intermediates. With the bulky O-tolylmagnesium bromide -under formal HBr abstraction- metalation of the diisopropylmethyl substituent occurs in γ-position to the next activating center (N) with formation of an N—C chelate. Properties and structure of this product 3 from this novel alkane activation reaction are discussed.
    Notes: Aus dem Diazadien (DAD) Glyoxalbis (diisopropylmethylimin) (1) und wasserfreiem Nickelbromid wird (DAD)NiBr2 (2) erhalten, dessen Reaktion mit Hauptgruppenmetall-alkylen zu wenig stabilen Zwischenprodukten führt. Mit dem sperrigen O-Tolylmagnesiumbromid wird unter formaler HBr-Abspaltung die Metallierung des Diisopropylmethyl-Rests von 2 in γ-Stellung zum nächsten aktivierenden Zentrum (N) unter Bildung eines N—C-Chelatrings erreicht. Eigenschaften und Struktur dieses Produkts (3) einer neuartigen Alkanaktivierung werden diskutiert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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