ヘクサコーディネートされたキラルリン酸イオンの分子設計,合成,および非対称な触媒
Daisuke Uraguchi1, Hitoshi Sasaki1, Yuto Kimura1
1Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8601, Japan.
Journal of the American Chemical Society
|February 2, 2018
まとめ
研究者はエナチオセレクティブ反応のための新しいキラルリン酸触媒を開発した. この触媒はピクテ・スペングラーの反応における立体化学を効果的に制御し,新しい合成の可能性を提供します.
科学分野:
- 協調化学
- 非対称な触媒
- 有機合成
背景:
- チラルの触媒は,エナチオ選択的合成に不可欠である.
- フォスファート基の触媒は 独特の構造と電子特性を有しています
- ピクテ・スペングラー反応は有機合成における重要な変換である.
研究 の 目的:
- 新しいキラルヘクサコーディネートリン酸イオンを設計し,合成し,特徴づけること.
- 誘導塩酸水素の触媒活性を評価する.
- ステレオ化学的制御を制御する構造-活動関係を明らかにする.
主な方法:
- 八面体P (V) 核を持つキラル六合同化リン酸イオンの合成.
- 光学および結晶学的技術を用いたリン酸イオンの特徴化.
- ピクテ・スペングラー型反応における触媒としてリン酸水素の適用.
主要な成果:
- キラルフォスファートイオンの設計,合成,完全な特徴付けに成功しました.
- 酸化水素によって触媒化されたピクテ・スペングラー型反応における高エナント選択性の実証.
- キラルリン酸塩の構造とステレオ誘導能力の間の相関が確立された.
結論:
- 新しいキラルヘクサコーディネートフォスファートイオンが開発されました.
- 対応するリン酸水素は,高度にエナチオ選択性のピクテ・スペングラー反応の有効な触媒として機能する.
- 精密な構造の解明は,触媒構造とステレオ化学的結果の間の関係を確認する.
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