高度にエナチオセレクティブで,オキシタネに水素結合ドナー催化添加物
Daniel A Strassfeld1, Zachary K Wickens1, Elias Picazo1
1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States.
Journal of the American Chemical Society
|May 5, 2020
まとめ
新種のキラル触媒は,トリメチルシリルブロミドを用いて,オクセタンの高度なエナンチオセレクティブリング開きを可能にします. これはプレトマニドを含む薬剤合成のための価値あるブロモヒドリンの構成要素への効率的なアクセスを提供します.
科学分野:
- 有機化学
- キャタリシス
- 薬剤化学
背景:
- チラルの触媒は,エナチオ選択的合成に不可欠である.
- オクセタンは化学合成のための多用途のサイクルエーテルである.
- 1,3-ブロモヒドリンは合成的に価値があります.
研究 の 目的:
- オクセタンリング開封の高度なエナンチオセレクティブ方法を開発する.
- 1,3-ブロモヒドリンの 重要な構成要素を合成する
- 薬の合成におけるメソッドの有用性を実証する.
主な方法:
- キラルスクワラミド触媒の設計と合成
- 代替オクセタンにトリメチルシリルブロミドをエナンチオセレクティブに添加する.
- 反応メカニズムの解明のための運動同位体効果研究.
主要な成果:
- キラルスクワラミド触媒は,高度にエナチオセレクティブなオクセタンリングの開きを促進した.
- 3 置換および 3, 3 不置換のオクセタンの広範な範囲が成功裏に変換されました.
- この方法により,1,3-ブロモヒドリンのエナンチオプアに直接アクセスすることができました.
- 触媒反応は,プレトマニドのグラムスケール合成に成功しました.
結論:
- 開発された触媒システムは,1,3-ブロモヒドリンを反浄化するための一般的で効率的な経路を提供します.
- H結合ドナー触媒は,エナンチオセレクティブブロミドの供給を容易にする.
- この方法論は複雑な薬剤化合物の合成に有用である.
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