Hydrosilylation of 1,4-bis(trimethylsilyl)-1-buten-3-ynes using late transition metal hydrides as catalyst precursors
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- 作者：Maruyama ; Yooichiroh ; Yoshiuchi ; Keigo ; Ozawa ; Fumiyuki
- 关键词：Catalytic hydrosilylation ; 1 ; 4-Bis(trimethylsilyl)-1-buten-3-yne ; Platinum catalyst ; Rhodium catalyst ; Ruthenium catalyst
- 刊名：Journal of Organometallic Chemistry
- 出版年：2000
- 出版时间：September 8, 2000
- 年：2000
- 卷：609
- 期：1-2
- 页码：130-136
- 全文大小：119 K
文摘
Two geometrical isomers of 1,4-bis(trimethylsilyl)-1-buten-3-yne (cis- and trans-1) were subjected to catalytic hydrosilylation with HSiR3 (HSiMe2Ph or HSiMePh2) in the presence of catalytic amounts of late transition metal hydrides. Four kinds of regio- and stereoisomers of hydrosilylation products were formed: (R3Si)(Me3Si)C
CCHCH2SiMe3 (2), (1Z,3E)-CH(SiMe3)C(SiR3)CHCHSiMe3 (3), (1Z,3E)-C(SiMe3)(SiR3)CHCHCHSiMe3 (4), and (1E,3E)-C(SiMe3)(SiR3)CHCHCHSiMe3 (5). The product selectivity was strongly affected by the geometry of 1 as well as the catalyst precursor employed. Compounds 2–5 could be prepared in over 93 % selectivity, respectively.
CCHCH2SiMe3 (2), (1Z,3E)-CH(SiMe3)C(SiR3)CHCHSiMe3 (3), (1Z,3E)-C(SiMe3)(SiR3)CHCHCHSiMe3 (4), and (1E,3E)-C(SiMe3)(SiR3)CHCHCHSiMe3 (5). The product selectivity was strongly affected by the geometry of 1 as well as the catalyst precursor employed. Compounds 2–5 could be prepared in over 93 % selectivity, respectively.