飽和したアザヘテロサイクルの電気化学的隣接C-H不機能化
Gourab Kundu1, Tristan H Lambert1
1Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States.
Journal of the American Chemical Society
|January 8, 2024
まとめ
この研究は,飽和したアザヘテロサイクルの隣接するC−H結合を機能化するための電気化学的方法を導入する. 新しいプロトコルは,一般的なヘテロサイクル化合物のステレオ選択的誘導と,その後の多様化を可能にします.
科学分野:
- 有機化学
- 電気化学
- ヘテロサイクル化学
背景:
- 飽和したアザヘテロサイクルは,医薬品や天然製品に多く含まれています.
- これらの基板における近隣C−H結合の機能化のための効率的な方法は限られている.
- 新しい合成戦略の開発は,多様なヘテロサイクルの化合物へのアクセスに不可欠です.
研究 の 目的:
- 飽和したアザヘテロサイクルにおける2つの近隣C−H結合の直接機能化のための新しい電気化学的方法の開発.
- 隣接した位置で機能的グループをステレオ選択的に導入する.
- アザヘテロサイクルのコアの急速な多様化を可能にします.
主な方法:
- 未分割の細胞で飽和したアザヘテロサイクルの電気化学的酸化.
- 塩酸,酸,酸アンヒドリドの混合物を使用する.
- ステレオ選択によるα-アセトキシ-β-クロロ誘導体への変換
- α位置での後の機能化とβ位置でのクロスカップリング.
主要な成果:
- 5つ,6つ,7つ構成の飽和アザヘテロサイクルの周辺のC-H結合の機能化に成功した.
- α-アセトキシ-β-クロロアザヘテロサイクルのステレオ選択的形成.
- α位置を様々な核愛素 (アルキル,アリル,アリル,アルキニル,アルコキシ,アジド) で置換することが示されている.
- スズキのクロスカップリングは成功しました β-クロロの位置で
結論:
- 開発された電気化学プロトコルは,飽和したアザヘテロサイクルの多様化のための多用途かつ効率的な経路を提供します.
- この方法は,ステレオ化学を制御した複雑な異循環構造の迅速な合成を可能にします.
- この戦略は新薬候補と機能材料の合成のための新しい道を開きます.
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