ロジウム触媒による,長距離脱結合性イソメリゼーションによる活性化オレフィンの遠端端水酸化
Arun Jyoti Borah1, Zhuangzhi Shi1
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China.
Journal of the American Chemical Society
|May 5, 2018
まとめ
Rh触媒による水酸化は,インドルおよび関連化合物の遠隔C−Hアルキル化を可能にします. この方法は,マイケル受容体規則を克服し,アルケンの同位化とC-H機能化を進めて,地域選択性を制御する.
科学分野:
- 有機化学
- キャタリシス
- 合成方法論
背景:
- 伝統的なC−Hアルキル化方法は,しばしば地域選択性が欠けている.
- マイケル受容体への結合添加は一般的なが,時には制限反応経路である.
- グループ戦略の指示は,複雑な分子におけるサイト固有の機能化を達成するために不可欠です.
研究 の 目的:
- 遠隔C−H水酸化のための新しいRh触媒法を開発する.
- インドールとオルトのC7位置で選択的機能化を実現する.
- マイケル受容体と地域選択性に関連する制限を克服する.
主な方法:
- ロジウム (Rh) 触媒を用いる.
- 特定のN-PtBu2の指揮グループを使用しています.
- リモートアクティベーションのための長距離解結合性同体化.
主要な成果:
- インドールのC7位置でのRh触媒によるリモート末端水酸化が成功しました.
- インドリンとアニリンをオーソ選択的に水酸化した.
- マイケル・アセプテータの 結合ルールを克服した
- インドル機能化における制御された位置選択性.
結論:
- この研究は,アルケンのイソメリゼーションとインドールのC-Hアルキル化において重要な進歩を示している.
- 開発された方法論は,N-ヘテロサイクルの地域選択的機能化のための強力なツールを提供します.
- この戦略は複雑な有機分子を 合成する新たな可能性をもたらします
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