中央と螺旋のキラリティの同時制御:ディオクサ[6]ヘリケンの適当なヘリセレクティブ合成
Peng Liu1, Xiaoze Bao2, Jean-Valère Naubron3
1Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France.
Journal of the American Chemical Society
|September 8, 2020
まとめ
研究者は,安定したダイオクサ[6]ヘリケンを合成するための新しい方法を開発した. この有機触媒化プロセスは,高度なエナチオ純度を持つ新しいキラル型ヘテロサイクリック化合物を生成し,複雑な分子構造へのアクセスを拡大します.
科学分野:
- 有機化学
- アシンメトリック・シンセシス
- ヘテロサイクル化学
背景:
- チラルのヘテロサイクル化合物は,医薬品と材料科学における重要な構成要素です.
- 複雑なキラル分子への効率的でステレオ選択的な合成経路の開発は大きな課題です.
- ディオクサヘリケンは,ヘリケール型であるため,潜在的応用があるユニークな分子クラスです.
研究 の 目的:
- 構成的に安定したダイオクサ[6]ヘリケンの新しいファミリーの効率的かつヘリセレクティブな合成を確立する.
- 開発された合成方法の範囲と効率を調査する.
- 合成中のステレオ化学的結果とエナチオ純度保持を調査する.
主な方法:
- 連続したヘリコセレクティブ有機触媒によるヘテロアニュレーション
- エナンチオ濃縮された溶融2ニトロジヒドロフランの除去性芳香化.
- 中央と螺旋のキラリティを持つ分子を生成するためにアキラル前駆者を利用する.
主要な成果:
- 構成的に安定したダイオクサ[6]ヘリケンの新種の合成に成功した.
- 高い効率で得られた新型のキラル型ヘテロサイクルのスキャフォールドの幅広い範囲.
- アロマティゼーションのステップは,ほとんどの場合非常に高いエナチオ純度保持で進みました.
結論:
- 開発された有機触媒化戦略は,これまで知られていなかったキラルダイオクサヘリケンの効率的な経路を提供します.
- この方法は,単純な起始材料から中央と螺旋の両方のキラリティを持つ分子を生成することを可能にします.
- 高いエナチオ純度保持は,ステレオ選択的なアプリケーションにおけるこれらの化合物の有用性を保証する.
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