In the realm of solar energy utilization, there is a growing focus on designing and implementing effective photocatalytic systems, for the conversion of solar energy into valuable chemical fuels. The potential of Covalent Organic Polymers (COPs) as photocatalysts for visible‐light‐driven organic transformation has been widely investigated, positioning them as promising candidates in this field. In the design of COPs, introducing a donor‐acceptor arrangement facilitates the transfer of electrons from the donor to the acceptor, creating a charge transfer complex and leading to enhanced conductivity and improved charge separation. Here we present a novel hydrazone‐linked covalent organic polymer ETBC‐PyHz containing TPE donor and pyridine acceptor. Utilizing this, an efficient method has been developed for an oxidative cross‐coupling reaction involving C‐S bond formation. This process involves arylhydrazines and arenethiols, and results in the production of unsymmetrical diaryl sulfides via the formation of aryl and thioarene radicals. This conversion holds significant importance because the byproducts produced during the process are nitrogen and water, making it environmentally benign.

中文翻译：

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腙连接的供体-受体共价有机聚合物作为 C-S 键形成的多相光催化剂


在太阳能利用领域，人们越来越关注设计和实施有效的光催化系统，以将太阳能转化为有价值的化学燃料。共价有机聚合物（COP）作为可见光驱动的有机转化光催化剂的潜力已得到广泛研究，使其成为该领域有前途的候选者。在 COP 的设计中，引入供体-受体排列有助于电子从供体转移到受体，形成电荷转移复合物，从而提高电导率并改善电荷分离。在这里，我们提出了一种含有 TPE 供体和吡啶受体的新型腙连接共价有机聚合物 ETBC-PyHz。利用这一点，我们开发了一种有效的方法来进行涉及 C-S 键形成的氧化交叉偶联反应。该过程涉及芳基肼和芳烃硫醇，并通过形成芳基和硫代芳烃自由基产生不对称二芳基硫醚。这种转化非常重要，因为在此过程中产生的副产品是氮气和水，对环境无害。