二重銅とフォトレドックス触媒による脱炭素化sp3C-N結合
Yufan Liang1, Xiaheng Zhang1, David W C MacMillan2
1Merck Center for Catalysis at Princeton University, Princeton, NJ, USA.
Nature
|June 22, 2018
まとめ
この研究は,sp3 炭素-窒素結合を作るための新しい銅とフォトレドックス触媒法を導入しています. この効率的なクロスカップリングシステムは,容易に入手可能な炭酸と多様な窒素核性物質を使用します.
科学分野:
- 有機化学
- カタリシス
- 合成方法論
背景:
- 移行金属 (パラジウム,銅,ニッケル) の触媒による sp2 炭素-窒素 (C-N) 結合の形成に著しい進歩がみられた.
- アルキル基板を使用した sp3 C-N 結合の形成は,クロスカップリング化学における持続的な課題である.
研究 の 目的:
- sp3 C-N ボンドを構成するための一般的で効率的な方法を開発する.
- アルキル基質をC−N結合形成に組み込むという課題に取り組む.
主な方法:
- 銅触媒とフォトレドックス触媒の相乗効果の組み合わせ
- アルキル源としてアルキルカルボキシル酸 (主,二次,三次) を利用する.
- ヘテロサイクル,アミド,スルフォナミド,アニリンを含む幅広い窒素ヌクレオフィルを使用しています.
主要な成果:
- 室温で効率的なC−N結合を短い反応時間 (5分から1時間) で達成する.
- 各種のアルキルカルボキシル酸と窒素核愛体に広く適用できることを実証した.
- ポリアミン基板と複雑な薬剤分子の後期機能化に成功した.
結論:
- 開発された触媒システムは,N-アルキル製品を合成するための多用途のプラットフォームを提供します.
- 薬剤の分子複合性の迅速な構築と後期的な機能化を可能にします.
- sp3 C-N結合の形成という課題に取り組む上で大きな進歩を遂げました
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