About: Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes

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Description	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	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Lamač, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	287271
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/10:00342073
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Si-H bond activation; alkynylsilanes; metallocene complexes (en)
http://linked.open.../riv/klicoveSlovo	Si-H bond activation alkynylsilanes metallocene complexes
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	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2010
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	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0002-7863
number of pages	12 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes Si-H Bond Activation of Alkynylsilanes by Group 4 Metallocene Complexes

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