Hydrodealkoxylation reactions of silyl ligands at platinum: reactivity of SiH₃ and SiH₂Me complexes.
Hydrodealkoxylation reactions of silyl ligands at platinum: reactivity of SiH₃ and SiH₂Me complexes.
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铂上硅基配体的加氢脱烷氧基化反应:SiHâ 和 SiHâMe 配合物的反应性
DOI:
10.1039/c5dt04923g
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发表时间:
2016
影响因子:
4
通讯作者:
R. Herrmann
中科院分区:
文献类型:
--
作者:
C. Mitzenheim;T. Braun;R. Laubenstein;B. Braun;R. Herrmann
The platinum(II) complex [Pt(H)2(dcpe)] (1; dcpe = 1,2-bis(dicyclohexylphosphino)ethane) reacts with an excess of the dialkoxymethylsilanes (HSiMe(OR)2; R = Me, Et) to give the bis(silyl) complex [Pt(SiH2Me)2(dcpe)] (3) and trialkoxymethylsilanes by hydrodealkoxylation reactions. These rearrangements of the silyl ligands involve Si–O bond activations. The exchange of the alkoxy moieties against silicon-bound hydrogen atoms occurs stepwise. The intermediate complexes [Pt(H){SiMe(OEt)2}(dcpe)] (5), [Pt{SiMe(OEt)2}2(dcpe)] (6), [Pt{SiHMe(OEt)}2(dcpe)] (7) and [Pt{SiHMe(OMe)}2(dcpe)] (8) were detected. Treatment of the complex 1 with an excess of dichloromethylsilane yields the bis(silyl) complex [Pt(SiMeCl2)2(dcpe)] (9). The hydrido silyl complex [Pt(H)(SiMeCl2)(dcpe)] (10) was identified as an intermediate. The reactions of the complexes [Pt(SiH3)2(dcpe)] (2) and [Pt(SiH2Me)2(dcpe)] (3) with iodomethane lead to a transfer of the SiH3 and SiH2Me ligands. Methylsilane and dimethylsilane, respectively, as well as the platinum diiodo complex [Pt(I)2(dcpe)] (11) were identified as main products.
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影响因子:
15
作者:
H. Woo;R. Heyn;T. Tilley
通讯作者:
T. Tilley
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作者:
H. Tobita;K. Ueno;M. Shimoi;H. Ogino
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通讯作者:
T. Braun
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
Tamiko Takeuchi;H. Tobita;H. Ogino
通讯作者:
H. Ogino
影响因子:
4.9
作者:
S. Lachaize;S. Sabo;B. Donnadieu;B. Chaudret
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