汎用性のあるPd (((OTf) 2 x 2 H2O触媒によるオルトフローリネーションで,NMPをプロモーターとして使用しています
Xisheng Wang1, Tian-Sheng Mei, Jin-Quan Yu
1Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Journal of the American Chemical Society
|May 14, 2009
まとめ
新しいパラジウム触媒反応により,ピリジン基の化剤を用いて保護されたベンジラミンをオーソフッ化することができる. この方法は,医薬品化学と有機合成で広く適用できます.
科学分野:
- 有機化学 オーガニック・ケミストリー
- 薬用化学 薬用化学について
- カタリシス カタリシス カタリシス
背景:
- 酸化有機化合物は,医薬品と材料科学において不可欠である.
- 効率的で選択的な化方法の開発は,合成化学の主要な課題です.
- パラジウム触媒は,C-H機能化のための強力なツールを提供します.
研究 の 目的:
- トライフラミドで保護されたベンジラミンのパラジアム触媒による新型オーソフローリネーションを報告する.
- フッ素原子を地域選択的に導入するための汎用的な方法を確立する.
- 開発された化プロトコルの広範な適用性を実証するために.
主な方法:
- パラジウム (((II) トリフラート二水素 (Pd (((OTf) 2 x 2 H2O) を触媒として利用しています.
- N-フッ素-2,4,6-トリメチルピリジニウムトリフラートを電性フッ素源として使用しています.
- N-メチル-2-ピロリドン (NMP) をプロモーターとして使用した反応条件の最適化.
主要な成果:
- トリフラミドで保護された様々なベンジラミンのオーソフッ化が成功しました.
- この反応は,オルトポジションに対する高い地域選択性を示した.
- トライフラミド群は,その後の機能群変異のための多用途なハンドルであることが証明されました.
結論:
- 報告されたPd触媒反応は,オルトフッ化ベンジラミン誘導体への効率的な経路を提供します.
- この方法は,フッ素を複雑な分子に組み込むための合成ツールボックスを拡張します.
- このプロトコルの広範な適用性により,薬剤の発見と開発に価値があります.
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