アルケンの直接アジリジネーションは,カチオニウム (塩) ルテニウム (VI) ニトリド複合体によって行われます
Wai-Lun Man1, William W Y Lam, Shek-Man Yiu
1Department of Biology and Chemistry, City University of Hong Kong, Tat Che Avenue, Hong Kong, PRC.
Journal of the American Chemical Society
|November 26, 2004
まとめ
ルテニウム複合体は,アルケーンとアジリジン化合物を容易に形成する. X線結晶学により,これらの新しいルテニウム (III) アジリジン複合体の構造が確認され,アジリジン結合体内の単一結合が明らかになりました.
科学分野:
- 有機金属化学 有機金属化学
- 協調化化学について
- 合成化学 合成化学とは
背景:
- ルテニウム複合体は,有機合成における汎用的な触媒である.
- アジリジンは,重要な合成的有用性を持つストレインされた3つ組のヘテロサイクルです.
- 高値ルテニウムとアルケンの反応性を理解することは,新しい合成方法論の開発に不可欠です.
研究 の 目的:
- 特定のルテニウム ((VI) 複合体と様々なアルケンの反応を調査する.
- 新しいルテニウム-アジリジン複合体を合成し,特徴づけること.
- X線結晶学を用いて,結果の複合体の構造的特徴を明らかにする.
主な方法:
- [RuVI ((N)) ((salchda)) ((CH3OH)) ]PF6とアルケーン (2,3-ジメチル-2-ブーテン,スタイレン,トランスベータ-メチルスタイレン) がピリジンまたは1-メチリミダゾールと反応する.
- ルテニウム (IV) とルテニウム (III) の中間物質および製品の分離と特徴付け.
- 主要なルテニウム (III) アジリジン複合体の構造的決定のためのX線結晶学.
主要な成果:
- ルテニウム (VI) の前駆体はアルケーンと容易に反応してルテニウム (IV) アジリジン中間物質を形成し,その後ルテニウム (III) コンプレックスに還元された.
- 様々なアリル置換アルケンは,対応するルテニウム (III) アジリジン複合体を産生した.
- X線結晶学により,2つのルテニウム ((III) アジリジン複合体の構造が確認され,中性アジリジンリガンドとアジリジン環内の単一結合と一致するRu-N (((アジリジン) 距離が示されました.
結論:
- 研究されたルテニウム ((VI) 複合体は,アルケーンとの反応によるルテニウム-アジリジン複合体の合成のための効果的な前駆体である.
- 反応は,Ru (III) 種への還元に続くRu (IV) 種の最初の形成を経て進行します.
- 構造分析により,アジリジン環の整合性と,ルテニウムとの連携が確認されました.
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