アザ-ピナコール再配列から生成された活性中間物質の捕獲による非対称的水素化
Chang-Bin Yu1, Wen-Xue Huang, Lei Shi
1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China.
Journal of the American Chemical Society
|October 30, 2014
まとめ
新しいパラジウム触媒による非対称な水素化法により,循環性N-スルフォニルアミノアルコールからキラル型エクソサイクリックアミンを効率的に生成します. この画期的な発見は,価値あるキラルアミン化合物を合成するための新しい経路を提供します.
科学分野:
- 有機化学 オーガニック・ケミストリー
- カタリシス カタリシス カタリシス
- アシンメトリック・シンセシス
背景:
- チラルのエクソサイクリックアミンは,医薬品の重要な構成要素です.
- キラルアミンを合成する既存の方法は,範囲や効率が限られている可能性があります.
研究 の 目的:
- キラル型エクソサイクリックアミンへのアクセスのための効率的な触媒的方法の開発.
- アザ-ピナコール再配列と併用して非対称な水素化の利用を調査する.
主な方法:
- パラジウム触媒による非対称な水素化.
- 酸触媒によるアザ-ピナコール再配列による活性中間物質の局所生成.
- 三,四,五基のサイクルN-スルフォニルアミノアルコールの水素化.
主要な成果:
- パラジアム触媒による効率的な非対称水素化の開発に成功.
- キラル型エクソサイクリックアミンの場合,高いエナンチオ選択性 (最大98% ee) が達成された.
- リングサイズの異なるサイクルN-スルフォニルアミノアルコールを含む,実証された基板の範囲.
結論:
- 開発された方法は,価値あるキラル型エクソサイクリックアミンへの効率的なアクセスを提供します.
- この研究は,非対称的水素化の応用範囲を拡大します.
- この戦略は,キラルアミン合成のための新しい合成経路を提供します.
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