期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 695, 期 19-20, 页码 2167-2171出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2010.06.007
关键词
Dimethoxysilane; Dihydrosilane; Triarylborane; Reduction
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [19020048]
- Grants-in-Aid for Scientific Research [19020048, 21350029] Funding Source: KAKEN
O-(Dihydrosilyl)(dimesitylboryl)benzenes 1 were prepared in 6 steps. o-Dibromobenzene was mono-lithiated with n-BuLi and reacted with chloro(dimethoxy)silanes to afford o-C(6)H(4)(Br)[SiR(OMe)(2)] (2) (R-Ph, Me). Bromine-lithium exchange between 2 and tert-BuLi produced o-C(6)H(4)(Li)[SiR(OMe)(2)] (3), which were reacted with fluoro(dimesityl)borane to give o-C(6)H(4)(BMes(2))[SiR(OMe)(2)] (4). Reduction of 4 with LiAlH(4) in THF yielded [o-C(6)H(4)(BMes(2)H)(SiRH(2))](-)Li(+)(thf)(n) (9). Treatment of 9 with BF(3)center dot OEt(2) afforded the target compounds 1. The structures of 1 were determined by NMR spectroscopy and X-ray crystallographic analysis. (C) 2010 Elsevier B. V. All rights reserved.
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