Novel η3-1-Silaallyl tungsten complexes via Si-H bond activation of hydrovinylsilanes: Structure and reactivity toward methanol

Hiroyuki Sakaba, Sanae Watanabe, Chizuko Kabuto, Kuninobu Kabuto

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Reactions of cis-Cp*(CO)2W(MeCN)Me (1) with HSiMe2(CH=CR2) (R = H, Me) afford the novel η3-1-silaallyl complexes Cp*(CO)2W(η3-Me2SiCHCR2) [R = H (2), Me (3)] accompanied by liberation of MeCN and CH4 via thermal Si-H bond activation. η3-Coordination and exo conformation of the 1-silaallyl ligand in 3 are shown by X-ray crystal analysis, which reveals the partial double bond character of the Si-C bond (1.800(4) Å) in the silaallyl moiety. Complexes 2 and 3 show extremely high reactivity toward MeOH to give the hydrido-(methoxysilyl)alkene complex trans-Cp*(CO)2WH(η2-MeOMe2SiCH=CH2) (4) and the four-membered metallacycle Cp*(CO)2WCH(CHMe2)SiMe2OMe (6), respectively.

Original languageEnglish
Pages (from-to)2842-2843
Number of pages2
JournalJournal of the American Chemical Society
Volume125
Issue number10
DOIs
Publication statusPublished - 2003 Mar 12

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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