Institute of Organic Chemistry, University of Münster , Corrensstrasse 40, 48149 Münster, Germany.
Institute of Medical Physics and Biophysics, University of Münster , Robert-Koch-Strasse 31, 48149 Münster, Germany.
Org Lett. 2018 Feb 2;20(3):752-755. doi: 10.1021/acs.orglett.7b03892. Epub 2018 Jan 18.
Silyl ketones were used for the preparation of palladium nanoparticles (PdNPs) starting with Pd(OAc) in dimethylformamide under irradiation with a visible light-emitting diode (LED). Variation of the silyl ketone structure allowed adjustment of the PdNP diameter (1.9 or 5.2 nm). The in situ-formed PdNPs were further stabilized with polyvinylpyrrolidone and then applied as recyclable catalysts in the Suzuki-Miyaura coupling of arylboronic acids with aryl iodides to obtain substituted biphenyls in excellent yields.
硅基酮在可见光发光二极管（LED）照射下，用 Pd(OAc)在二甲基甲酰胺中用于钯纳米粒子（PdNPs）的制备。硅基酮结构的变化可以调整 PdNP 的直径（1.9 或 5.2nm）。原位形成的 PdNPs 进一步用聚乙烯基吡咯烷酮稳定，然后作为可回收催化剂应用于芳基硼酸与芳基碘化物的 Suzuki-Miyaura 偶联反应，以高产率得到取代联苯。
