インドールの電気化学的消化性2,3-機能不全
Ju Wu1, Yingchao Dou1, Régis Guillot1
1Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO, UMR 8182), Equipe MSMT , Univ. Paris Sud, CNRS, Université Paris-Saclay , 15, rue Georges Clémenceau , 91405 Orsay , Cedex, France.
Journal of the American Chemical Society
|January 24, 2019
まとめ
この研究は,インドールを有価なインドリンに直接変換するための電気化学的方法を導入する. 電気酸化プロセスはシンプルで,外部の酸化物質を避け,様々な機能群と互換性があります.
科学分野:
- 有機化学
- 電気化学
- 合成方法論
背景:
- インドールは幅広い用途を持つ重要なヘテロサイクル化合物である.
- インドルを直接機能化することは,合成の課題です.
- 酸化性 dearomatizationは,新しいインドール誘導体への経路を提供しています.
研究 の 目的:
- インドールの直接的酸化脱オロマ化のための新しい電気化学的方法を開発する.
- 2,3-ダイアルコキシと2,3-ディアジドインドリンを効率的に合成する.
- 持続可能で 操作的にはシンプルな 合成経路を探求する
主な方法:
- インドールの直接電気化学的酸化は,分割されていない条件下で行われます.
- 恒定電流による電解
- 反応メカニズムを研究するために電気化学的テクニックの使用.
主要な成果:
- 2,3-ダイアルコキシと2,3-ディアジドインドリンの合成に成功した.
- 優れた機能群の互換性を示した.
- 外部酸化剤を必要としない操作的に単純な手順です.
結論:
- 電気合成はインドル機能化のための効率的でグリーンなアプローチを提供します.
- 開発された方法は,価値あるインドリン・スキャフォールへの直接的な経路を提供します.
- C−O と C−N 結合形成には,ラジカルカチオン中間物質が関与することが提案されている.
関連する概念動画
01:26What is an Electrochemical Gradient?
127.8K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
127.8K
01:06Interfacial Electrochemical Methods: Overview
871
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
871
01:21Electrochemical Gradient and Channel Proteins: An Overview
4.7K
An electrochemical gradient is a fundamental concept in biology and chemistry. It regulates the movement of ions across cell membranes. This movement is influenced by two factors:
The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell. This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to...
The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell. This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to...
4.7K
01:55Secondary Active Transport
137.8K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
137.8K
01:47Primary Active Transport
198.3K
In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
198.3K
02:41Concentration Cells
25.9K
A concentration cell is a type of a voltaic cell constructed by connecting two almost identical half-cells, both based on the same half-reaction and using the same electrode, differing only in the concentration of one redox species. A concentration cell's potential, therefore, is determined only by the concentration difference of the particular redox species.
Consider the following voltaic cell:
Consider the following voltaic cell:
25.9K