کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1324052 1499941 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and structures of o-(dihydrosilyl)(dimesitylboryl)benzenes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis and structures of o-(dihydrosilyl)(dimesitylboryl)benzenes
چکیده انگلیسی

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-C6H4(Br)[SiR(OMe)2] (2) (R = Ph, Me). Bromine–lithium exchange between 2 and tert-BuLi produced o-C6H4(Li)[SiR(OMe)2] (3), which were reacted with fluoro(dimesityl)borane to give o-C6H4(BMes2)[SiR(OMe)2] (4). Reduction of 4 with LiAlH4 in THF yielded [o-C6H4(BMes2H)(SiRH2)]−Li+(thf)n (9). Treatment of 9 with BF3·OEt2 afforded the target compounds 1. The structures of 1 were determined by NMR spectroscopy and X-ray crystallographic analysis.

o-(Dihydrosilyl)(dimesitylboryl)benzenes 1, which include a highly reactive dihydrosilane moiety and a Lewis acidic borane moiety, were prepared from o-dibromobenzene via novel reactive intermediates, [o-(dimethoxysilyl)phenyl]lithiums, in 6 steps. The structures of 1 were determined by NMR spectroscopy and X-ray crystallographic analysis.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 695, Issues 19–20, 1–15 September 2010, Pages 2167–2171
نویسندگان
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