A Fairly Stable Crystalline Silanone

Isabel Alvarado-Beltran, Alfredo Rosas-Sánchez, Antoine Baceiredo, Nathalie Saffon-Merceron, Vicenç Branchadell, Tsuyoshi Kato

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48 Citations (Scopus)


© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Silanones 2 substituted by bulky amino- and phosphonium ylide substituents have been synthesized and isolated in crystalline form. Thanks to the steric protection and the strong electron-donating ability of the substituents, silanones 2 are persistent and only slowly dimerizes at room temperature (t1/2=0.5 or 5 h). Structural and theoretical analysis of 2 indicate a short Si=O bond (1.533 Å) and an enhanced polarization toward the O atom compared to Me2Si=O owing to the strong π-electron donation from the phosphonium ylide substituent.
Original languageEnglish
Pages (from-to)10481-10485
JournalAngewandte Chemie - International Edition
Issue number35
Publication statusPublished - 1 Jan 2017


  • reactive intermediates
  • silanone
  • silicon
  • silylene
  • ylides


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