陽子結合電子移転により活性化されていないアルケンの分子間抗マルコヴニコフ化
Qilei Zhu1, David E Graff1, Robert R Knowles1
1Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States.
Journal of the American Chemical Society
|December 22, 2017
まとめ
この研究は,硫黄胺を用いたアルケンの抗マルコフニコフ型水酸化のための新しい触媒方法を導入している. この可視光による反応は 価値ある化学化合物を合成するための 汎用的なアプローチを提供します
科学分野:
- 有機化学
- 光触媒
- 合成方法論
背景:
- 炭素-窒素結合の形成には,ヒドロアミネーション反応が重要です.
- 活性化されていないアルケンの直接的なアンチマルコフニコフ水酸化は依然として困難です.
- C−N結合形成のための効率的な触媒システムの開発は,有機合成の重要な分野である.
研究 の 目的:
- 活性化されていないアルケンの分子間抗マルコフニコフ水酸化のための新しい触媒方法の開発.
- 主要および次要の硫黄アミドを窒素源として利用する.
- この変容を 穏やかな可視光条件下で実現する
主な方法:
- イリジウム (III) 光触媒を用いる.
- ダイアルキルリン酸塩基を用いて
- チオール水素原子ドナーを含んでいる.
- 室温で可視光照射下で反応を行う.
主要な成果:
- サルフォナミドによる非活性化アルケンの分子間抗マルコフニコフ水素化に成功した.
- 60以上の例で幅広い合成範囲を示した.
- 陽子結合電子移転によるN中心のスルフォナミジルラジカル中間物質を示唆する機械的洞察を提供した.
結論:
- 開発された触媒システムは,硫黄胺を含む化合物を合成するための効率的で汎用的な方法を提供します.
- 反応は穏やかな条件下で進行し,様々な用途に適しています.
- この機械的理解は,光触媒C−N結合形成反応のさらなる発展に役立つ.
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