サイト・セレクティブの1,1-非活性化アルケンは,カチオンパラジウム触媒によって可能
Jinwon Jeon1,2, Ho Ryu1,2, Changseok Lee1,2
1Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon , 34141 , Korea.
Journal of the American Chemical Society
|June 1, 2019
まとめ
新しいパラジウム触媒反応により,2つの核性素を用いてアルケンの1,1-非機能化が可能である. この方法は,高レジオコントロールを持つオキシ四次炭素中心を含む複雑な分子を効率的に生成します.
科学分野:
- 有機化学
- カタリシス
- 合成化学
背景:
- パラジウム触媒はC−C結合形成に不可欠である.
- アルケンの1,1-非機能化は合成上の課題である.
- アルケンの機能化のための地域選択的方法の開発は重要です.
研究 の 目的:
- アルケンの新しいパラジウム (II) 触媒による1,1-機能不全を開発する.
- アルケンの二機能化のために,カチオンパラジウム (II) 複合体を利用する.
- 実験とDFT計算を通じて反応のメカニズムを調査する.
主な方法:
- カチオンパラジウム (II) 複合体を用いた触媒.
- アルケーンにニュクレオフィルを地域選択的に加える.
- 重要な η3-π-アルリルパラジウム (II) の中間物質の形成
- 様々な基板に対する反応最適化.
主要な成果:
- 活性化されていない端末と内部アルケンの1,1-機能不全が成功しました.
- インドル/アニリンおよびアルケンの γ,γ-または δ,δ-非機能化製品の合成.
- シンメトリックな1,1-非機能化により,オクソ四次炭素の中心を形成する.
- すべての変形において高い地域制御を達成した.
結論:
- アルケーン1,1-機能不全のための多用途のパラジアム触媒法が確立されている.
- この反応により,価値ある二機能化合物や複雑な分子構造が得られます.
- 機械的洞察は,パラジアム触媒変換のさらなる開発に役立ちます.
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