塩基のないアセトフェノンの非対称的移転水素化のための低価エネアミド鉄複合体
Paraskevi O Lagaditis1, Alan J Lough, Robert H Morris
1Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6.
Journal of the American Chemical Society
|June 2, 2011
まとめ
研究者らは,溶解のための鉄 (II) 複合体を調査した. ダブルデプロトン化リガンドは5座標複合体を形成し,塩基添加なしにアセトフェノンの転送水素化を可能にし,触媒的潜在性を示した.
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
背景:
- 一般的な配列 [Fe,CO,Br,PNNP,BPh,4] を持つ以前に報告された鉄 (II) 複合体を調査した.
- これらの複合体の活性化における塩基の役割が検討された.
研究 の 目的:
- 鉄 (II) 複合体の活性化における塩基の役割を解明する.
- 新しい5座標の鉄 (((II)) 複合体を合成し,特徴づけること.
- 転送水素化におけるこれらの複合体の触媒的活性を評価する.
主な方法:
- 鉄 (II) 複合体の合成について
- ダブルデプロトン化PNNPリガンド複合体の構造的特徴.
- イソプロパノールを水素源として使用したアセトフェノンの触媒移転水素化.
主要な成果:
- 5座標の鉄 (II) 複合体は,四歯状PNNPリガンドの二重デプロトン化によって形成された.
- 新しい鉄 (II) 複合体は,外部の塩基がない状態でアセトフェノンの転移水素化を触媒化した.
- 一部の類似品は有意な触媒活性を示した.
結論:
- 塩基は,鉄 (II) コンプレックスにおけるPNNPリガンドの活性化において重要な役割を果たします.
- 合成された5座標鉄 (((II) 複合体は,転送水素化において触媒的に活性である.
- この研究は,新しい無塩基触媒システムの開発への道を開きます.
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