分子間アリルC-Hアミネーションのための触媒的,ブロンステッド塩基戦略
Sean A Reed1, Anthony R Mazzotti, M Christina White
1Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, Illinois 61801, USA.
Journal of the American Chemical Society
|August 4, 2009
まとめ
新しいブロンステッド塩基活性化法により,単純なオレフィンのパラジウム触媒によるC-Hアリルアミネーションが可能になる. この選択反応は,効率的に線形アリルアミンを形成し,複雑な分子合成の末期機能化に役立ちます.
科学分野:
- 有機化学 オーガニック・ケミストリー
- カタリシス カタリシス カタリシス
- 合成方法論 合成方法論
背景:
- パラジウムで触媒化されたC-H活性化は,有機合成の強力なツールです.
- C-Hアミネーションの選択的方法の開発は,依然として大きな課題です.
- 活性化されていない末端オレフィンは,通常,C-H機能化の非反応基質である.
研究 の 目的:
- 酸化C-Hアリルアミネーションのための新しいブロンステッド塩基活性化モードを報告する.
- 活性化されていない末端オレフィンのアミナ化のための選択的方法を開発する.
- 複雑な分子に窒素を組み込む後期段階を可能にするために.
主な方法:
- パラジウム (II) /硫黄酸化物触媒システムを使用しました.
- ブロンステッド塩基プロモーターとしてN,N-ダイイソプロピレチラミンを使用した.
- 活性化されていない末端オレフィンの分子間C-Hアリルアミネーションを研究した.
主要な成果:
- 活性化されていない末端オレフィンの効率的なアミネーションを達成しました.
- 高いレベルのステレオ選択性,地域選択性,化学選択性を観察した.
- 合成された線形アルリルアミン産物.
結論:
- 報告された方法は,予測可能で高度に選択的なC-H酸化経路を提供します.
- このアプローチは,高度な合成中間製品の後期的な機能化を容易にする.
- この方法論は,天然製品の合成に適用できます.
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