Synthesis and reactivity of novel bis(stannyl)silanes

P. Bleckmann, U. Englich, U. Hermann, I. Prass, K. Ruhlandt-Senge, M. Schürmann, C. Schwittek, F. Uhlig

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Bis(stannyl)silanes of types R3Sn-SiR′2-SnR3 and R2(H)Sn-SiR′2-Sn(H)R2 with R′ being methyl, phenyl, iso-propyl or tert-butyl have been synthesized by treatment of difunctionalized diorganosilanes with alkali stannides (R = Me, 1Bu; R′ = Me, iPr; 1 - 6, 8) or with triphenyl-tin chloride and magnesium (R = Ph; R′ = Me, Ph, iPr; 7, 9). Me3Sn-SitBu2-SnMe3 4, was halogenated using SnCl4, to yield the bis(chlorostannyl)silane 11. The reaction of bis(stannyl)diorganosilanes R3SnSiR′2SnR3 with catalytic amounts of Pd(PPh3)4 resulted in unexpected rearrangements under formation of the silyldistannanes R3SnSnR2SiR′R2. These compounds undergo addition reactions with alkynes. All compounds have been identified by NMR, IR, MS and elemental analysis. Compounds 5, 6 and 7 have also been characterized by X-ray crystallography.

Original languageEnglish (US)
Pages (from-to)1188-1196
Number of pages9
JournalZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
Volume54
Issue number9
DOIs
StatePublished - Sep 1999

Keywords

  • Reactions with Alkynes
  • Rearrangement
  • Stannylsilanes
  • X-Ray Data

ASJC Scopus subject areas

  • Chemistry(all)

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