化学原料と元素硫黄からチオエスターを直接合成する
Haidi Tang1,2, Muliang Zhang1,3, Yuchao Zhang4
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
Journal of the American Chemical Society
|February 28, 2023
まとめ
この研究では,アルデヒド,アルケーン,元素硫黄を用いたチオエステル合成のための新しい光触媒法が導入されています. この原子経済的なアプローチは 価値ある硫黄を含む化合物への 多様な経路を提供する.
科学分野:
- 有機合成
- カタリシス
- 写真化学
背景:
- チオールエネのクリック化学は,炭素-硫黄結合形成に広く使用されています.
- 不飽和結合への選択的なカルボニルチルラジカル添加は未発達である.
研究 の 目的:
- 硫酸エステル合成のための温和な,原子とステップ経済的な触媒戦略を開発する.
- 簡単に手に入る材料を使って新しい3つのコンポーネントの結合反応を確立する.
主な方法:
- 光触媒による水素原子の直接移転
- 原材料アルデヒド,アルケーン/アルキーン,元素硫黄の3組成結合
- ラジカルベースのチオエステル合成
主要な成果:
- 単純な商品化学品と複雑な医薬品中間製品を含む広範な基板の範囲が達成されました.
- この方法は,従来のチオール基核性置換と正交である.
- このプロトコルは,チオラクトン,オリゴーマー/ポリマー,およびチオ酸を合成するために拡張された.
- エソナリモドの2段階合成が実証されました.
結論:
- 元素硫黄はアシルラジカルを効果的に捕捉し,熱力学的に運動的に好ましい経路を提供します.
- この方法は,硫黄を含む様々な分子を合成するための強力な新しいツールを提供します.
- このアプローチは学術研究と産業応用の両方にとって大きな可能性を秘めています.
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