リバーシブル・フォスフィニデン・トランスファーにおける構造スナップショット:SnP二重結合の合成,構造,および反応化学
Malte Fischer1, Matthew M D Roy2, Lewis L Wales1
1Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K.
Journal of the American Chemical Society
|May 10, 2022
まとめ
研究者は,アミド置換スタニレンとフォスファ-ウィティッグ反応剤を反応させ,新しいPドナー安定スタニレンを合成した. ステリックチューニングにより,フォスフィニデンの転移が可能になり,極性SnP二重結合を持つスタナフォスフェンが形成された.
科学分野:
- 有機金属化学
- メイングループ 化学
- リン化学
背景:
- アミド置換スタニレンは反応性のある中間物質である.
- フォスファ-ウィッティグ反応剤は,新しいリン含有化合物への経路を提供します.
研究 の 目的:
- 新しいPドナーで安定したスタニレンを合成し,特徴づけること.
- これらの化合物の構造と反応性に対するステリック障害の影響を調査する.
- フォスフィニデンの断片の移転とスタナフォスフェンの形成を調査する.
主な方法:
- アミド置換スタニレンの反応とフォスファ-ウィティグの反応剤.
- X線結晶学を用いた合成化合物の構造分析.
- 結合と電子特性を理解するための計算研究 (例えば,DFT).
- リバーシビリティを評価するための溶液相測定と反応性試験
主要な成果:
- Pドナーで安定したスタニレンの形成は,四つ組のSn,C,Pヘテロサイクルによる.
- 固体構造のチューニングは,固体負荷を体系的に増加させることによって行われます.
- P-P結合の延長とSn-P結合の収縮を観察する.
- 最もステリカルに重荷を負ったケースで,スタンナホスフェンに完全なフォスフィニデンの移転.
- スタナフォスフェンの極性SnP二重結合の特徴
結論:
- 新しいPドナーで安定したスタニレンとスタナフォスフェンを合成することができる.
- ステリック効果は,フォスフィニデンの移転を含む構造と反応性を制御する上で重要な役割を果たします.
- フォスフィニデンの転移の可逆性は実証され,さらなる合成応用への道が開かれました.
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