ロジウムによる電気酸化C−Cアルケニル化 (III) 触媒
Youai Qiu1, Alexej Scheremetjew1, Lutz Ackermann1
1Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstrasse 2 , 37077 Göttingen , Germany.
Journal of the American Chemical Society
|January 15, 2019
まとめ
この研究は,酸化性C−Cアルケニル化のためのロジウム (III) 触媒を用いた電気化学的C−C活性化を導入する. この方法は,強い酸化物質を避け,複雑なアレン構造に選択的にアクセスできます.
科学分野:
- 有機金属化学
- 電気化学
- 合成有機化学
背景:
- 伝統的なC−C結合形成は,しばしばステキオキシダントに依存する.
- 持続可能で選択的なC-C結合活性化方法を開発することは,有機合成において極めて重要です.
- ロジウム (III) 触媒は,C-HとC-C機能化のための強力なプラットフォームを提供します.
研究 の 目的:
- ロジウム (III) 触媒を用いたC−C活性化のための電気化学的方法の開発.
- 有毒な移行金属酸化物質を避けるための酸化C-Cアルケニル化.
- 化学的および地域選択性の高い密度で置換されたアレンの合成を可能にします.
主な方法:
- 電気化学的環境における酸化ロジウム (III) 触媒を用いる.
- C-C機能化にケラートアシスタンスを使用する.
- 反応経路の解明のためのメカニズム的研究を行う.
主要な成果:
- 伝統的な酸化剤を代替して,電気を用いた酸化C−Cアルケニル化が成功しました.
- 反応は,優れた化学的および地域選択性を持つ広範な基板範囲を示した.
- C−C分裂機構をサポートする,触媒的に有能なロジウム (III) の中間物質が特定された.
- グラムスケールの合成は,追加の電解質なしで実現可能でした.
結論:
- 電気化学的なロジウム (III) 触媒は,C-C活性化のための効率的で持続的な経路を提供します.
- この方法は,C-H活性化戦略を補完する1,2,3-置換アレンへのユニークなアクセスを提供します.
- 開発されたプロトコルはスケーラブルで,危険な反応剤を避け,その実用性を強調しています.
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