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1Author    D. Ietm Ar Stalke, Nayla Keweloh, Uwe Klingebiel, M. Atthias, N. Oltem Eyer, G. Eorge, M. SheldrickRequires cookie*
 Title    Von lithiierten Aminofluorsilanen zu mono-und dimeren Iminosilanen From Lithiated Aminofluorosilanes to Mono-and Dimeric Iminosilanes  
 Abstract    Depending on the solvent and the bulkiness of the substituents, lithiated aminofluorosilanes are dimers, monomers, or LiF-adducts of iminosilanes. In the crystal structure of the dimeric lithium derivative of di-terr-butyl(/m-butylamino)fluorosilane, each lithium atom is coordinated by one fluorine and two nitrogen atoms. LiF-elimination leads — if sterically possible — to dimerisation. The limits of dimerisation are reached with the dimer diisopropyl(trwm-butylphenyl-imino)silane, for which the crystal structure analysis shows severe steric distortions. Fluorine-chlorine-exchange occurs in reactions of lithiated (tri-fm-butylphenylimino)fluorosilanes with Me3SiCl. Iminosilanes are obtained by thermal LiCl-elimination from the resulting salts. 
  Reference    Z. Naturforsch. 42b, 1237—1244 (1987); eingegangen am 4. Mai/25. Juni 1987 
  Published    1987 
  Keywords    Aminofluorosilanes, Lithium Salts, Cyclisation, Iminosilanes, Crystal Structure 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1237.pdf 
 Identifier    ZNB-1987-42b-1237 
 Volume    42