Abstract

Polychalcogenadisilabicyclo[k.l.m]alkanes and their germanium analogues were systematically synthesized by the reaction of tris(trimethylsilyl)methylsilane (TsiSiH 3) or tris(trimethylsilyl)methylgermane with elemental sulfur or selenium. Structures of the resulting bicyclo[k.l.m]alkanes were confirmed by X-ray diffraction analysis or 77Se NMR spectroscopy. Oxidation of polythia-1,3-disilabicyclo-[k.l.m]alkanes with a peracid afforded the corresponding ring expansion products.

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