
Zeitschrift fur Naturforschung, B: Chemical Sciences p. 278 - 287 (1999)
Update date:2022-08-03
Topics:
Uhlig, Frank
Kayser, Christian
Klassen, Ralph
Hermann, Uwe
Brecker, Lothar
Schürmann, Markus
Ruhland-Senge, Karin
Englich, Ulrich
Stannyloligosilanes 1 and 2 with terminal organotin groups are available by reacting alkali metal tri-or diorganostannides with α,ω-dichloro-or difluorosilanes, or by treatment of organochlorostannanes with α,ω-difluorosilanes in the presence of magnesium. Attempts to functionalize the triorganotin derivatives 2 by halogenation reagents did not result in the halogen compounds 5; instead cleavage of silicon-tin bonds is observed. In contrast, reactions of the hydridotin derivatives 1 with CHX3 (X = Cl, Br) lead to the quantitative formation of the bis(chloro-or bromostannyl)oligosilanes 5. All compounds were characterized by NMR, IR, MS and elemental analysis. In addition, the triorganotin compound 2i and the hydridotin species 1b have been characterized by X-ray crystallography.
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