エナチオセレクティブ・コッパー・カタライズド・ボリラティブ・アミデーション・オブ・アレンズ
Seunghwan Byun1, Abdikani Omar Farah2, Henry R Wise2
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois60208, United States.
Journal of the American Chemical Society
|December 6, 2022
まとめ
銅の触媒は,ステレオゲンな中心を持つキラルアミドの合成を可能にします. この方法では,アイソシアネートにアルリル銅を添加し,貴重なキラルアミド基板を生成します.
科学分野:
- 有機化学
- キャタリシス
- 非対称合成
背景:
- キラルアミドは医薬品と有機合成における重要な構成要素である.
- α-ステロゲン中心を持つエンアンチオ濃縮アミドを合成するための効率的な方法の開発は依然として課題です.
研究 の 目的:
- α-ステロゲン中心を持つエンアンチオ濃縮アミドを合成するための新しい銅触媒アプローチを明らかにする.
- 合成されたα-ビニルβ-ボリルアミドの有用性を探求し,多様な分子構造を構築する.
主な方法:
- アイソシアネートにアリル銅種を銅触媒で添加する.
- キラルリガンドを用いてエナチオセレクティブを誘導する
- 反応メカニズムを解明するために,密度関数理論 (DFT) の計算を使用する.
主要な成果:
- この方法は,α-置換されたキラルアミドへのアクセスを高収量で提供します.
- 合成されたアミドには,高いから優れたエナントオセレクティブ性が得られた.
- α-ビニルβ-ボリルアミドの多様化により,非常に有用な合成構造物が生まれた.
結論:
- 開発された銅触媒反応は,エンアンチオ濃縮α置換アミドを生成するための効果的な戦略である.
- DFT計算では,イソシアネート酸素への触媒調整と,エナンチオ制御のためのステリック反発が示唆されている.
- 合成されたボリルアミドは,さらなる合成変換のための多機能な中間物質として機能する.
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