In this study, a binuclear palladium complex immobilized on the organo-functionalized SBA-16 was prepared and structurally characterized by routine techniques. Characterizations indicated that the mesostructure of SBA-16 was maintained after the immobilization of palladium complex. Then, the prepared nanomaterial was applied as a heterogeneous catalyst in the carbonylative Suzuki coupling reaction of aryl iodides with arylboronic acids using Cr(CO)6 as carbonyl source. The catalyst was efficiently promoted the coupling reactions of various aryl iodides and arylboronic acids to give the corresponding diaryl ketones in excellent yields. Moreover, the catalyst was readily recovered by filtration and could be reused for seven cycles without losing its structural integrity and catalytic activity.Graphic Abstract

中文翻译：

---

固定在介孔 SBA-16 上的双核钯配合物：使用 Cr(CO)6 作为羰基源进行芳基碘和芳基硼酸羰基化 Suzuki 偶联反应的高效多相催化剂

在这项研究中，制备了固定在有机功能化 SBA-16 上的双核钯配合物，并通过常规技术对其进行了结构表征。表征表明，在钯配合物固定后，SBA-16 的细观结构得以保持。然后，将制备的纳米材料作为非均相催化剂应用于芳基碘与芳基硼酸的羰基化 Suzuki 偶联反应，以 Cr(CO)6 为羰基源。该催化剂有效地促进了各种芳基碘化物和芳基硼​​酸的偶联反应，以优异的产率得到相应的二芳基酮。此外，催化剂很容易通过过滤回收，可以重复使用七个循环而不会失去其结构完整性和催化活性。图形摘要