C-O,C-N,およびC-X結合の可視光誘導ボリレーション
Shengfei Jin1, Hang T Dang1, Graham C Haug1
1Department of Chemistry , University of Texas at San Antonio , San Antonio , Texas 78249 , United States.
Journal of the American Chemical Society
|January 4, 2020
まとめ
この研究では,可視光を用いた新しい,金属のない光触媒性ボリレーション法が導入されました. このプラットフォームは,C-O結合を含む様々な基板から多様なボロナートを効率的に合成します.
科学分野:
- 有機化学
- 光触媒
- 合成方法論
背景:
- ボロン酸は有機合成における重要な機能群であり,前駆体である.
- 現存する可視光光触媒型ボリレーション方法は,特に強いC−O結合については,基板の範囲が広いわけではない.
研究 の 目的:
- 一般的な,金属のない可視光誘発光触媒性ボリレーションプラットフォームを開発する.
- フェノール,アニリン,ハロアレンを含む幅広い基質のボリル化を可能にします.
主な方法:
- 有機光触媒としてフェノチアジンを用いた可視光誘導光触媒
- 電子豊富な基板の単一の電子還元のための陽子結合電子転送機構.
- 複合分子に対する機能群耐性の実証
主要な成果:
- 電子に富んだフェノールおよびアニリン誘導体,クロロアレン,その他のハロアレンを成功裏にボリル化.
- 構造的に複雑な基板の多様性において,優れた機能群耐性を観察した.
- 以前には実現できなかった 可視光誘導によるフェノール誘導体の単電子還元を達成した.
結論:
- 一般的で効率的な金属のない光触媒ボリレーションプラットフォームが確立されています.
- フェノチアジンは,陽子結合電子移転機構によって,様々な基質のボリル化を効果的に触媒化する.
- 光触媒と塩基の相互作用は反応の成功に不可欠である.
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