シアノヒドリンをα-ヒドロキシアミドに触媒移液化
Tomoya Kanda1, Asuka Naraoka1, Hiroshi Naka2
1Graduate School of Science , Nagoya University , Chikusa, Nagoya 464-8602 , Japan.
Journal of the American Chemical Society
|December 29, 2018
まとめ
この研究では,カルボキシアミドを水ドナーとして使用してシアノヒドリンをα-ヒドロキシアミドに変換するためのパラジアム触媒法が導入されています. この効率的なプロセスは 穏やかな条件下で動作し 直接的な薬物の改変を可能にします
科学分野:
- 有機化学
- キャタリシス
- 合成方法論
背景:
- シアノヒドリンは多用途の合成中間物質である.
- 価値のある機能群に変換するための効率的な方法が求められます.
- α-ヒドロキシアミドは,医薬品や天然製品の重要な構造モチーフです.
研究 の 目的:
- シアノヒドリンの転移水分化のための新しいパラジウム (II) 触媒法を開発する.
- この変換に有効な水ドナーとしてカルボキシアミドを使用します.
- 温和で効率的な条件下でα-ヒドロキシアミドを合成する.
主な方法:
- シアノヒドリンのパラジウム (II) 触媒反応とカルボキシアミド.
- 反応条件の最適化 (触媒,温度,時間)
- 薬剤分子を含む様々なアルデヒドおよびケトン由来シアノヒドリンに適用する.
主要な成果:
- シアノヒドリンをα-ヒドロキシアミドに選択的に水分化する.
- 軽度の反応条件 (50 °C,10分) が実証されている.
- ハイドロシアネーション-トランスファー水分化の配列を通じてフェノフィブラートを機能化されたα,α-ダイアリル-α-ヒドロキシアミドに直接変換する.
- 18 Oラベリングは,カーボニル酸素がカルボキサミドから製品に移行することを確認した.
結論:
- シアノヒドリンをα-ヒドロキシアミドに新しく効率的なパラジアム触媒による転移水化が確立されている.
- この方法は,広範囲の基板と軽度の反応条件を提供します.
- この方法論は,潜在的製薬用途を含む機能化されたα-ヒドロキシアミドを合成するための貴重なツールを提供します.
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