B ((C6F5) 3-ヒドロシランのC-Si/Si-Hクロスメタテシス
Yuanhong Ma1, Liang Zhang1,2, Yong Luo1
1Organometallic Chemistry Laboratory, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Journal of the American Chemical Society
|August 25, 2017
まとめ
研究者は,ボロン触媒を用いたC-Si/Si-H結合の転移により選択的な水素塩素再配分を達成した. この突破は,幅広い適用性を持つ機能的なシランの効率的な合成を可能にします.
科学分野:
- オルガノシリコン化学
- キャタリシス
- 合成方法論
背景:
- C-SiとSi-H結合の裂け方/改変による水素シランにおける代替物の再配分は,選択的に制御することが困難である.
- 既存の方法はしばしば望ましい化学選択性や機能群耐性を欠いている.
研究 の 目的:
- ヒドロシラン代替剤の再配分のための新しい選択的方法を開発する.
- C-Si/Si-H結合のホモメタテシスとクロスメタテシスを電子豊富な芳香水素塩基を用いて達成する.
- 多替代機能シランの新しい合成経路を確立する.
主な方法:
- 電子に富んだ芳香質の水素塩基を基板として使用した.
- ボロンの触媒としてトリス・ペンタフローロフェニル・ボラン (B・C6F5) 3を使用しています.
- ホモメタテシス反応とクロスメタテシス反応を研究した.
主要な成果:
- 最初の選択的なC-Si/Si-H結合ホモメタテシスとクロスメタテシスを達成した.
- 高い化学選択性と幅広い基板範囲を示した.
- 単純な反応条件下での高機能グループ耐性を示した.
結論:
- 開発されたボロン触媒プロトコルは,マルチ置換機能シランを合成するための新しい効率的な経路を提供します.
- この方法は,選択的ヒドロシラン再配分における以前の制限を克服します.
- このプロトコルのシンプルさと耐久性は,オルガノシリコン合成において貴重なツールとなる.
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