About: Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes     Goto   Sponge   NotDistinct   Permalink

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  • The reactivity of variously substituted alkynylsilanes toward selected group 4 metallocene complexes was investigated. Reactions of the alkynylsilanes (RC2SiR2H)-C-1-H-2 (R-1 = SiMe3, R-2 = Me, 1; R-1 = SiMe3, R-2 = Ph, 2; R-1 = SiMe2H, R-2 = Me, 5) with Cp2TiMe2 (Cp = eta(5)-cyclopentadienyl) resulted, upon methyl group transfer to the silyl group, in the previously described titanocene alkyne complexes Cp2Ti((RC2SiR2R3)-C-1-R-2) (R-1 = Me3Si R-2 = R-3 = Me, 3; R-1 = HMe2Si, R-2 = R-3 = Me, 6) or the unreported complex 4 (R-1 = Me3Si, R-2 = Ph, R-3 = Me). The Cp2TiCl2/n-BuLi system yielded alkyne complexes 6 and 7 (R-1 = HMe2Si, R-2 = Me, R-3 = H); no alkyl group transfer was detected. On the other hand, reactions utilizing the Cp2ZrCl2/n-BuLi system afforded inseparable mixtures; however, complexes of the type Cp2Zr[(RC2SiMe2)-C-1(n-Bu)] (R-1 = Me3Si, 8; R-1 = HMe2Si, 9) were detected.
  • The reactivity of variously substituted alkynylsilanes toward selected group 4 metallocene complexes was investigated. Reactions of the alkynylsilanes (RC2SiR2H)-C-1-H-2 (R-1 = SiMe3, R-2 = Me, 1; R-1 = SiMe3, R-2 = Ph, 2; R-1 = SiMe2H, R-2 = Me, 5) with Cp2TiMe2 (Cp = eta(5)-cyclopentadienyl) resulted, upon methyl group transfer to the silyl group, in the previously described titanocene alkyne complexes Cp2Ti((RC2SiR2R3)-C-1-R-2) (R-1 = Me3Si R-2 = R-3 = Me, 3; R-1 = HMe2Si, R-2 = R-3 = Me, 6) or the unreported complex 4 (R-1 = Me3Si, R-2 = Ph, R-3 = Me). The Cp2TiCl2/n-BuLi system yielded alkyne complexes 6 and 7 (R-1 = HMe2Si, R-2 = Me, R-3 = H); no alkyl group transfer was detected. On the other hand, reactions utilizing the Cp2ZrCl2/n-BuLi system afforded inseparable mixtures; however, complexes of the type Cp2Zr[(RC2SiMe2)-C-1(n-Bu)] (R-1 = Me3Si, 8; R-1 = HMe2Si, 9) were detected. (en)
Title
  • Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes
  • Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes (en)
skos:prefLabel
  • Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes
  • Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes (en)
skos:notation
  • RIV/61388955:_____/10:00342073!RIV11-AV0-61388955
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika
  • 12
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 287271
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/10:00342073
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Si-H bond activation; alkynylsilanes; metallocene complexes (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [DFD9130F55C8]
http://linked.open...i/riv/nazevZdroje
  • Journal of the American Chemical Society
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 132
http://linked.open...iv/tvurceVysledku
  • Lamač, Martin
  • Jiao, H.
  • Spannenberg, A.
  • Hansen, S.
  • Arndt, P.
  • Baumann, W.
  • Rosenthal, U.
  • Fischer, Ch.
http://linked.open...ain/vavai/riv/wos
  • 000276009500063
http://linked.open...n/vavai/riv/zamer
issn
  • 0002-7863
number of pages
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