Polysilane/alumina-supported palladium nanoparticle catalyzed carbonylative Suzuki–Miyaura coupling reactions under ligand-free conditions have been developed to synthesize diaryl ketones. High yields and selectivities were achieved even with low catalyst loading under atmospheric pressure of CO gas. A variety of aryl iodides and arylboronic acids could be utilized to afford the diaryl ketones in excellent yields. Moreover, the ligand-free immobilized palladium nanoparticles could be recovered by simple filtration and the catalytic activity could be maintained for several runs.

中文翻译：

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芳基碘与现成的聚合物固定化钯纳米颗粒的羰基化 Suzuki-Miyaura 偶联反应

聚硅烷/氧化铝负载的钯纳米颗粒在无配体条件下催化羰基化 Suzuki-Miyaura 偶联反应已被开发用于合成二芳基酮。即使在 CO 气体常压下催化剂负载量低，也能实现高产率和选择性。可以利用各种芳基碘化物和芳基硼​​酸以优异的产率提供二芳基酮。此外，无配体固定化钯纳米粒子可以通过简单的过滤回收，并且催化活性可以保持多次运行。