(シリル) (シリレン) トングステン複合体の酸素化により,塩基安定したシルアノンの調整複合体の合成
Takako Muraoka1, Keisuke Abe, Youhei Haga
1Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Kiryu 376-8515, Japan.
Journal of the American Chemical Society
|September 9, 2011
まとめ
研究者は,ボルンガムの前駆体とピリジン-N-酸化物を用いて,新しい塩基安定化されたシルアノンの複合体を合成しました. さらに,さらなる反応により,新しい有機シリコン化学を披露するユニークなW-O-Si-O-Siフレームワークが得られました.
科学分野:
- 有機金属化学 有機金属化学
- シリコン化学 シリコン化学
- 協調化化学について
背景:
- トングステン-シリコン複合体は,無機合成における貴重な前体である.
- シリレンとシルアノンの複合体の反応性を理解することは,新しい触媒プロセスを開発する上で極めて重要です.
研究 の 目的:
- 新規の塩基安定化シラノンおよびディジロキサノキスチレン複合体を合成し,特徴づけること.
- シリル・シリレン・タングステン複合物の酸化反応を調査する.
主な方法:
- 塩基安定化されたシルアノンの複合体Cp*(OC) 2W(SiMe3) {OSiMes2(DMAP) } (2) をシリル (シリレン) トングステンの前駆体Cp*(OC) 2W(SiMe3) (((SiMes2) (1) からピリジン-N-酸化物 (PNO) と4- (((ジメチラミノ) ピリジン (DMAP) を用いて合成する.
- 複合体2をPNOで酸化して,ディジロキサノキシ複合体Cp*(O) 2W{OSiMes2(OSiMe3)} (3) を形成する.
- 複合体1とPNOから複合体3を直接合成する.
主要な成果:
- 塩基安定化されたシルアノン複合体の成功合成 2.
- 複合体3におけるW-O-Si-O-Si枠組の形成は,酸素化による.
- コンプレックス3は2つの異なる合成経路で得られ,反応の多用途性を示した.
結論:
- この研究は,DMAPベースによって安定したシルアノンの複合体への新たな経路を示しています.
- W-O-Si-O-Siフレームワークの形成は,ボルンガムの前体を使用した複雑なシリコン-酸素構造の構築の可能性を強調しています.
- この発見は,オルガン・シリコン・ボルンガムの化学における反応性と合成経路の理解に寄与する.
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