绿色化学：通过配对电解进行的有机化学转化,ACS Sustainable Chemistry & Engineering

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绿色化学：通过配对电解进行的有机化学转化
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-04-27 , DOI: 10.1021/acssuschemeng.1c00665
Najoua Sbei _{1,

2} , Tomas Hardwick _{3,

4,

5} , Nisar Ahmed ₃

Affiliation

从效率以及原子和能量经济的角度看，成对的电解具有很高的价值。为了优化用于化学反应的后两者，必须开发成对的电化学方法。当将电化学电池中的两个电极（分开的和未分开的）都用作工作电极，并且过程（氧化和还原）的两面都产生有价值的化合物时，这种理想的电解现象被定义为成对的电合成。与仅用于获得目标产品的单个电解系统相比，这种成对的电解提供了减少浪费的能源和时间的机会，而忽略了电解的另一面（阳极或阴极）。在理想情况下，在使用阴极和阳极工艺提供相同产品的成对电合成过程中，可以实现200％的电流效率。成对的电合成是一种高效的绿色工艺，因此，对于节省资源和减少浪费非常有益。然而，虽然成对的电合成是有益的，但是氧化和还原过程都必须兼容以抵消产量损失并且同样容易地分离和纯化电极产品的两侧。需要更大的努力来使用更系统和合理的方法进行配对的电合成，以在配对条件下获得最佳产物。但是，可以在此问题上应用新的计算工具来提供帮助。在设计新的成对的电子合成工艺方面存在相当大的冒险，并且伴随着机会来设计创新而强大的合成策略。在此，总结了成对电合成的几个例子及其优点的概述，这将有助于研究人员加深对这一主题的理解，并随后将成对电解用于绿色和可持续的有机分子合成。

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Green Chemistry: Electrochemical Organic Transformations via Paired Electrolysis

Paired electrolysis is highly valuable from the viewpoint of efficiency as well as atom and energy economies. In order to optimize the latter two for chemical reactions, the development of paired electrochemical processes is necessary. When both of the electrodes in an electrochemical cell (divided and undivided) are applied as working electrodes, and both sides of the processes (oxidation and reduction) yield valuable compounds, this ideal electrolysis phenomena is defined as paired electrosynthesis. This paired electrolysis offers the opportunity to reduce the spent energy and time, when compared with a single electrolysis system that is only used to achieve a product of interest, while ignoring the other side of the electrolysis (anodic or cathodic). In an ideal case, 200% current efficiency could be achieved during paired electrosynthesis using cathodic and anodic processes to provide the same product. Paired electrosynthesis is a highly efficient green process and, therefore, is beneficial for preserving resources and minimizing waste. However, while a paired electrosynthesis is beneficial, both oxidation and reduction processes must be compatible to counter the yield losses and equally ease separation and purification of both sides of the electrode products. Greater efforts are required to perform paired electrosynthesis with a more systematic and rational approach to achieve optimal products under paired conditions. Nevertheless, new computational tools could be applied for assistance in this matter. There is a considerable level of adventure in designing new paired electrosynthetic processes and accompanying opportunities to design innovative and powerful synthetic strategies. Herein, an overview of several examples of paired electrosyntheses and their advantages are summarized that will aid researchers to both develop a greater understanding of this subject and subsequently employ paired electrolysis for green and sustainable synthesis of organic molecules.

更新日期：2021-05-10

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