アルファ-クロロアセタニリドから,パラジウム触媒によるC[bond]H機能化による置換オキシンドールの合成
Edward J Hennessy1, Stephen L Buchwald
1Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Journal of the American Chemical Society
|October 2, 2003
まとめ
新しいパラジアム触媒反応は,アルファ-クロロアセタニリドからオキシンドールを効率的に合成します. この方法は,高収量,機能群耐性,および地域選択性を提供し,オキシンドール合成を簡素化します.
科学分野:
- 有機化学 オーガニック・ケミストリー
- 合成化学 合成化学とは
- カタリシス カタリシス カタリシス
背景:
- オキシンドールは,多様な生物学的活動を持つ重要なヘテロサイクリック化合物です.
- オキシンドールへの効率的で汎用的な合成経路は,医薬品化学において非常に求められています.
- 既存の方法は,しばしば機能化された基板または厳しい条件を必要とします.
研究 の 目的:
- オキシンドール合成のための新しい,効率的で地域選択的な方法を開発する.
- オキシンドール核の構築におけるパラジウム触媒の有用性を調査する.
- 新しい合成戦略の範囲と限界を調査する.
主な方法:
- 触媒的なパラジアムアセテートと2- ((di-tert-butylphosphino) ビフェニルを使用しています.
- アルファ-クロロアセテニリドを原料として使用する.
- サイクライゼーション反応のステキオメトリックベースとしてトライエチラミンを用いる.
主要な成果:
- オキシンドールの良好から優れた収量を達成しました.
- 高い機能グループ互換性が実証されています.
- 優れた地域選択性を示し,機能化前のアリーンの必要性を排除した.
結論:
- 開発されたパラジウム触媒反応は,オキシンドールへの簡単で効率的な経路を提供します.
- このメソッドの高い地域選択性と機能群耐性により,広く適用できる.
- このアプローチは,さまざまなオキシンドール誘導体にアクセスするための貴重なツールを提供します.
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