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  • Articles: DFG German National Licenses  (2)
  • Azobenzene  (1)
  • Carbene homologues  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Compounds of Germanium and Tin, 22 - Reactions of a Silyene with a Germylene and a Stannylene: Formation of a Digermene with an Unusual Arrangement of the Substituents and of a Stannane (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 1733-1737 
    Details
    ISSN: 0009-2940
    Keywords: Silicon ; Germanium ; Tin ; Carbene homologues ; Digermene ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reaction of the diaminosilylene :Si(tBuNCH2CH2NtBu) (5) with the diaminogermylene :Ge(tBuNCH2CH2NtBu) is thought to proceed via a germasilene → silylgermylene rearrangement and dimerisation to furnish the (Z)-1,2-diamino-1,2-disilyldigermene (Z)-9. The X-ray structure analysis of (Z)-9 reveals a long Ge—Ge bond length of 245 pm and a large trans-bent angle of 42°. Air-oxidation of (Z)-9 takes place with retention of configuration at the germanium atoms to provide the corresponding substituted (Z)-2,4-digerma-1,3-dioxetane (Z)-10. Treatment of 5 with the stannylene :Sn[N(SiMe3)2)2 gives, as a final product, the hydridodisilylstannane 12. The structures of (Z)-10 and 12 were also determined by X-ray crystallography.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971301205
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Silylene Reactions with Nitrogen Multiple Bonds: Additions and Rearrangements (1998)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 1755-1758 
    Details
    ISSN: 1434-1948
    Keywords: Silicon ; Silylene ; Azobenzene ; 1-Adamantyl azide ; Addition reactions ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reactions of the sterically encumbered silylenes R2Si: (R = 2,4,6-Me3C6H2, 2,4,6-iPr3C6H2) with azobenzene are thought to proceed via the [2+1] cycloaddition products, followed by insertion of the N-N single bond into the ortho-C-H bond of one of the phenyl rings or into the C-HMe2 bond of one of the ortho-isopropyl groups to furnish the 1,3-diaza-2-silaindan (4) or 1-aza-2-silaindan (5) derivatives, respectively. The reactions of these silylenes with 1-adamantyl azide seem to proceed through the silanimines and 4-azahomoadamantene intermediates which, by [2+2] cycloadditions, afford the 1,3-diaza-2-silacyclobutane derivatives 11 and 12. The structures of 4, 5, 11, and 12 were determined by X-ray crystallography.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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