| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 73660 | Microporous and Mesoporous Materials | 2013 | 8 Pages |
A novel solid catalyst for coupling reaction has been successfully prepared by immobilizing palladium in the nanocages of the ethylenediamine-functionalized mesoporous material SBA-16. The structure and composition of the solid catalyst were characterized by N2 adsorption–desorption, XRD, TEM, FT-IR and TGA. These results revealed that Pd(II) was successfully embedded inside the nanocages of SBA-16. This catalyst afforded high activity (over 91% conversion) for the Suzuki coupling of various aryl bromides and phenyiboronic acids in ethanol solvent at 60 °C even at the loading of 0.5 mol% Pd. Moreover, the SBA-16-2 N-Pd(II) catalyst could be separated easily from reaction mixture and reused for ten times without obvious loss of catalytic activity, showing the superiority over the homogeneous catalysts in industrial applications.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The regular pores in SBA-16 material can be used as nanoreactors. ► Functionalized SBA-16 was found highly active towards Suzuki reaction. ► A new Pd(II) bounded ethylenediamine-functionalized SBA-16 catalyst has been synthesized. ► The catalyst afforded the higher activity for the coupling of chloroarenes in mild conditions. ► The catalyst could be reused ten times without significant loss in activity.
