Nanosized CdS as a Reusable Photocatalyst: The Study of Different Reaction Pathways between Tertiary Amines and Aryl Sulfonyl Chlorides through Visible-Light-Induced N-Dealkylation and C–H Activation Processes,The Journal of Organic Chemistry

当前位置： X-MOL 学术 › J. Org. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Nanosized CdS as a Reusable Photocatalyst: The Study of Different Reaction Pathways between Tertiary Amines and Aryl Sulfonyl Chlorides through Visible-Light-Induced N-Dealkylation and C–H Activation Processes
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2021-01-19 , DOI: 10.1021/acs.joc.0c02263
Somayeh Firoozi ₁ , Mona Hosseini-Sarvari ₁

Affiliation

It has been found that the final products of the reaction of sulfonyl chlorides and tertiary amines in the presence of cadmium sulfide nanoparticles under visible light irradiation are highly dependent on the applied reaction conditions. Interestingly, with the change of a reaction condition, different pathways were conducted (visible-light-induced N-dealkylation or sp³ and sp² C–H activation) that lead to different products such as secondary amines and various sulfonyl compounds. Remarkably, all of these reactions were performed under visible light irradiation and an air atmosphere without any additive or oxidant in benign solvents or under solvent-free conditions. During this study, the CdS nanoparticles as affordable, heterogeneous, and recyclable photocatalysts were designed, successfully synthesized, and fully characterized and applied for these protocols. During these studies, intermediates resulting from the oxidation of tertiary amines are trapped during the photoinduced electron transfer (PET) process. The reaction was carried out efficiently with a variety of substrates to give the corresponding products at relatively short times in good to excellent yields in parallel with the use of the visible light irradiation as a renewable energy source. Most of these processes are novel or are superior in terms of cost-effectiveness, safety, and simplicity to published reports.

中文翻译：

纳米级CdS作为可重复使用的光催化剂：通过可见光诱导的N-脱烷基化和C–H活化过程，叔胺与芳基磺酰氯之间不同反应途径的研究

已经发现，在可见光辐射下，在硫化镉纳米颗粒存在下，磺酰氯和叔胺反应的最终产物高度依赖于所应用的反应条件。有趣的是，随着反应条件的改变，进行了不同的途径（可见光诱导的N-脱烷基或sp ³和sp ²C–H活化）导致产生不同的产物，例如仲胺和各种磺酰基化合物。值得注意的是，所有这些反应都是在可见光辐射下和在没有良性溶剂的情况下在无溶剂或无溶剂条件下的空气气氛下进行的。在这项研究过程中，CdS纳米颗粒作为可负担的，多相的和可回收的光催化剂被设计，成功合成并充分表征并应用于这些方案。在这些研究中，由叔胺氧化产生的中间体在光致电子转移（PET）过程中被捕获。使用可见光辐照作为可再生能源的同时，反应可在各种底物上有效地进行，从而在相对短的时间内以良好至极好的收率得到相应的产物。这些过程中的大多数都是新颖的，或者在成本效益，安全性和简化性方面优于已发布的报告。

更新日期：2021-02-05

点击分享查看原文

点击收藏

阅读更多本刊最新论文