超分子触媒内のテルペンサイクル:離散グループ制御製品選択性とメカニズム研究
Qi Zhang1, Lorenzo Catti1, Jürgen Pleiss2
1Department of Chemistry, University of Basel , St. Johanns-Ring 19, CH-4056 Basel, Switzerland.
Journal of the American Chemical Society
|June 8, 2017
まとめ
研究者たちは 複雑なテルペン循環反応のための 人造の酵素のような触媒を開発しました このレゾルシナレンのカプセルは,非共性相互作用を用いて,調節可能な製品の選択性を可能にし,シネージティックな触媒作用のために酸の痕跡を必要とします.
科学分野:
- 超分子化学
- 有機触媒
- 酵素ミミクリ
背景:
- 尾から頭へのターペンの循環は複雑な自然反応です.
- 酵素のような触媒は複雑な有機変異のために求められます.
- リソルシナレンのカプセルは 超分子触媒のプラットフォームです
研究 の 目的:
- テルペンのサイクリングを可能にする 酵素のような触媒を開発する
- 触媒反応のメカニズム的詳細と選択性制御を調査する.
- 触媒過程における非共性相互作用とコカタライストの役割を理解する.
主な方法:
- 水素結合ベースのリソルシナレンカプセルの設計と合成
- テルペンの尾から頭への循環,特にゲラニルアセテート循環の触媒.
- 運動研究と制御実験を用いたメカニズム的調査.
- 製品選択性の調整は,異なる離脱グループによって行われます.
主要な成果:
- レソルシナレンのカプセルは 尾から頭へのテルペンの循環を成功させた
- 製品選択性は,基板上の離散グループを変更することによって調整可能でした.
- 離脱グループの割れは,率決定のステップとして特定されました.
- 微量の酸がコカタリストとして不可欠であることが判明した.
- カプセルと酸の痕跡の間の相乗効果は,触媒作用に不可欠です.
結論:
- レソルシナレンのカプセルは,この複雑なテルペン循環のための最初の人工酵素のような触媒を表します.
- 触媒は非共性相互作用によって調節可能な製品の選択性を可能にします.
- 酸コカタリシスは必須で,超分子宿主と酸の痕跡の間の相乗効果メカニズムを強調する.
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