シリルピンサー結合によるロジウムとイリジウムのアミド複合体: [PSiP]Ir複合体によるアンモニアのN-H結合活性化
Erin Morgan1, Darren F MacLean, Robert McDonald
1Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3.
Journal of the American Chemical Society
|September 25, 2009
まとめ
イリジウムシリルピンサー複合体は,アニリンとアンモニアのN-H結合に容易に挿入されます. その結果生成された複合体は,室温で安定し,他の分子が存在する場合でも,N-H結合の還元性除去に抵抗します.
科学分野:
- 有機金属化学 有機金属化学
- カタリシス カタリシス カタリシス
- 無機化学 無機化学とは
背景:
- N-H結合の活性化は,多くの化学的変換において極めて重要です.
- シリルピンサー複合体は,結合機能化のためのユニークな反応性を提供します.
研究 の 目的:
- N−H結合を持つイリジウムシリルピンサー複合体の反応性を調査する.
- アミンリガンドによる新しいイリジウム複合体を合成し,特徴づけること.
主な方法:
- [Cy-PSiP]Ir複合体のアニリンとアンモニアとの反応.
- 発生したイリジウムヒドリドアミド複合体の分離と特徴付け.
- 複合体の安定性をN-H結合の還元性排除に向けてテストする.
主要な成果:
- イリジウムシリルピンサー複合体を,穏やかな条件下でアニリンとアンモニアのN-H結合にうまく挿入した.
- 単離可能な [Cy-PSiP]Ir (H) (NHR) 複合体の形成.
- 複合体は,室温でN-H結合の還元性除去に対する耐性を示し,アレン,アルケーン,およびフォスフィンの存在でも耐性を示した.
結論:
- イリジウムシリルピンサー複合体は,N-H結合機能化のための堅牢なプラットフォームを提供します.
- 合成された複合体は著しい安定性を示し,さらなる触媒的応用への道を開く.
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