| 초록 |
The well dispersed and nano-sized palladium monoxides were successfully supported on silica nanoparticle (SNP). The SNP as a support was synthesized with homogeneous nano-size by water-oil emulsion method. The synthesized catalyst (PdO@SNP) was characterized using several techniques such as SEM, TEM, XPS, XRD, and ICP-AES analysis. The catalyst has been used in aqueous copper free Sonogashira homo-coupling reaction of aryl iodides at moderate temperature with high selectivity and conversion. The separation of the catalyst/product could be simply carried out by the filtration and reused for aryl iodide coupling reaction for several times with keeping its catalytic activity. |
