Scalable electrocatalyzed formation of C–O bonds using flow reactor technology†

IF 3.4 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Reaction Chemistry & Engineering Pub Date : 2024-10-21 DOI:10.1039/D4RE00438H
Michael Prieschl, David Cantillo, C. Oliver Kappe and Gabriele Laudadio
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Abstract

The development of modular and robust synthetic routes that can serve both in medicinal and process chemistry settings is rare. Generally, highly modular medicinal chemistry routes are too hazardous and expensive to be translated into a process chemistry environment. Taking the case study of delamanid, a pharmaceutical compound used for multidrug-resistant tuberculosis treatment, the development of a sustainable and modular but scalable formation of C–O bonds via an electrocatalytic method is presented. In this work, the electrochemical batch reaction was studied, addressing critical reproducibility issues related with the process. Furthermore, the reaction was successfully translated to a flow electrochemical reactor design, which allowed the use of carbon felt electrodes. The high modularity of the protocol was demonstrated by the synthesis of 11 different examples, while the scalability of the reaction was proven by a gram scale preparation of a key intermediate for the synthesis of delamanid.

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利用流动反应器技术可扩展地电催化形成 C-O 键†。
开发既可用于药物化学,又可用于工艺化学的模块化、稳健的合成路线非常罕见。一般来说,高度模块化的药物化学路线过于危险和昂贵,无法转化到工艺化学环境中。以用于治疗耐多药结核病的药物化合物德拉马尼为例,介绍了通过电催化方法形成 C-O 键的可持续、模块化和可扩展的方法。在这项工作中,对电化学批量反应进行了研究,解决了与该过程有关的关键可重复性问题。此外,还成功地将该反应转化为流动电化学反应器设计,从而可以使用碳毡电极。11 个不同实例的合成证明了该方案的高度模块化,而克级制备合成 delamanid 的关键中间体则证明了该反应的可扩展性。
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来源期刊
Reaction Chemistry & Engineering
Reaction Chemistry & Engineering Chemistry-Chemistry (miscellaneous)
CiteScore
6.60
自引率
7.70%
发文量
227
期刊介绍: Reaction Chemistry & Engineering is a new journal reporting cutting edge research into all aspects of making molecules for the benefit of fundamental research, applied processes and wider society. From fundamental, molecular-level chemistry to large scale chemical production, Reaction Chemistry & Engineering brings together communities of chemists and chemical engineers working to ensure the crucial role of reaction chemistry in today’s world.
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Back cover Ultrasound-assisted condensation cyclization reaction: fast synthesis of quinazolinones from o-aminobenzamides and aldehydes under ambient conditions† Metallic sealants increase flux and change selectivity in supported molten-salt membranes. Monitoring and controlling zeolite synthesis via reactor-based solutions: a fed-batch strategy. Back cover
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