超電化触媒によるH/D交換による非活性化アリルハリドの化
Tao He1, Hendrik F T Klare1, Martin Oestreich1
1Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany.
Journal of the American Chemical Society
|March 8, 2022
まとめ
超電化シリウム/アレニウムイオンは,アリルハリドの効率的なデウテリウムラベルを可能にします. この方法により,安価なデュテリウム源を用いて,以前には利用できなかったデュテリウム化合物が得られます.
科学分野:
- 有機化学
- 同位体ラベル付け
背景:
- デュテリウムのラベル付けは,様々な化学的および生物学的研究にとって不可欠です.
- 電子欠乏性アリルハリドの消耗性デュテレーションのための既存の方法は限られている.
研究 の 目的:
- 電子欠乏性アリルハリドの徹底的なデュテレーションのための新しい効率的な方法を開発する.
- 簡単に手に入る安価なデュテリウム源を用いて高デュテリウム結合を達成する.
主な方法:
- 水素-デュテリウム (H/D) 交換の触媒として超電離シリウム/アレニウムイオンを使用する.
- ベンゼン-d6 (C6D6) を環境条件下でデュテリウム源として使用する.
主要な成果:
- 大量のデュテリウムを含有した電子欠乏性アリルハリドの完全デュテレーションを達成した.
- 合成された,以前は入手不可能な,脱化アリルハライド.
- 低触媒負荷 (0.1 mol %) でマルチグラム量へのスケーラビリティが実証されている.
- 1,2-ジクロロ-および1,2-ジフローロベンゼンなどの高価な,または商業的に利用できない溶媒の製造を可能にしました.
結論:
- 超電化シリウム/アレニウムイオンは,H/D交換の非常に効果的な促進剤である.
- この方法は,脱塩化アリルハリドと特殊なNMR溶媒への費用対効果の高いアクセス可能な経路を提供します.
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