異質非対称な触媒のためのホモキラル 2D 孔性の共性有機フレームワーク
Xiuren Wang1, Xing Han1, Jie Zhang1
1School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, China.
Journal of the American Chemical Society
|September 14, 2016
まとめ
研究者は,触媒化のための新しいキラル共性有機フレームワーク (COF) を開発した. これらの新型の多孔性材料は,高エナチオ選択性を持つ非対称反応を効率的に触媒化し,再利用可能で調節可能な溶液を提供します.
科学分野:
- 材料科学
- 有機化学
- カタリシス
背景:
- 協和有機フレームワーク (COF) は調節可能な特性を提供しますが,キラルCOFの合成は困難です.
- チラルの多孔性物質は,エナチオ選択的触媒に不可欠である.
研究 の 目的:
- 組み込みのキラル機能を持つ二次元COFを構築する.
- 非対称合成のための効率的で再利用可能な異質な触媒を開発する.
主な方法:
- イミン凝縮反応は,TADDOL製のテトラアルデヒドと4,4'-アミノディフェニルメタンを用いた.
- 粉末X線微分とコンピュータモデリングを用いた特徴付け.
- 触媒活性のためにTiO (i) Pr) 4による合成後の改変.
主要な成果:
- 異なるネットワーク構造を持つ2D COF (相互浸透型と非相互浸透型) の2種類の合成に成功しました.
- 改造されたCOFは異質な触媒として高い効率と再利用性を示した.
- アルデヒドにダイエチル亜鉛を非対称的に加えると,高いエナチオセレクティブ性が得られます.
結論:
- この研究は,キラルCOFの設計と合成のための実行可能な戦略を示しています.
- 開発されたキラルCOFは,非対称な変換のための異質な触媒として大きな可能性を示しています.
- 新しく機能する多孔性材料の 可能性が広がります
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