塩素ラジカルの触媒生成によって可能となる直接のC ((sp3) -Hクロスカップリング
Benjamin J Shields1, Abigail G Doyle1
1Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States.
Journal of the American Chemical Society
|September 23, 2016
まとめ
この研究では,C ((sp3) -Hのクロスカップリングのための新しいニッケルとフォトレドックス触媒法が導入されています. このプロセスは,アリル塩化物を用いてエーテルを効率的にアリレートし,温和な条件下で幅広いC ((sp3) -H機能化を可能にします.
科学分野:
- 有機化学
- カタリシス
- 写真化学
背景:
- C ((sp3) -H結合の機能化は有機合成において極めて重要です.
- 温和で効率的なC ((sp3) -Hアリレーションの開発は,依然として重要な課題です.
研究 の 目的:
- C ((sp3) -Hのクロスカップリングのための新しい触媒プラットフォームを開発する.
- アリル塩化物を結合パートナーと前駆体として使用してエーテルをアリル化することを可能にする.
主な方法:
- ニッケルとフォトレドックス触媒を組み合わせた
- 塩素基の触媒生成に使用されるアリル塩化物.
- Ni (III) 中間物質と光分解を含むメカニズム的経路を調査した.
主要な成果:
- サイクルエーテルと非サイクルエーテルのα-オキシC ((sp3) -Hアリレーションを成功裏に達成した.
- トゥルーエンのベンジルC ((sp3) -H結合の機能化が実証された.
- サイクロヘクサンの非活性化C ((sp3) -H結合のアリレーションを示した.
結論:
- 多用途のC ((sp3) -Hクロスカップリングプラットフォームを開発しました.
- この方法は,非常に穏やかな条件下で動作します.
- 様々なC ((sp3) -Hボンドの機能化に広範囲の影響を及ぼします.
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