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Vol. 25 No. 10 (2013): Vol 25 Issue 10

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Fiber-Palladium Complex as Highly Active and Recyclable Catalyst for Heck Reaction in Air

https://doi.org/10.14233/ajchem.2013.OH90
Zhichuan Wu
College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
Qi Wu
College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
Meng Chen
College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
Tingxian Tao
College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China

Corresponding Author(s) : Tingxian Tao

tingxiantao@yahoo.cn

Asian Journal of Chemistry, Vol. 25 No. 10 (2013): Vol 25 Issue 10

Abstract

A new amidoxime fibers-palladium catalyst was synthesized by the "coordination-reduction" reaction between the amidoxime groups in fibers and Pd(II) ions. The morphology, structure and composition of the as-obtained complexes were characterized by X-ray diffraction and X-ray photoelectron spectroscopy. The results indicated that the Pd(II) ions were reduced to Pd(0) nanospheres in situ with the diameter of about 100 nm and there were coordination interactions between the Pd nanoparticles and the amidoxime fibers. The prepared catalyst demonstrated high activities for Heck coupling reaction of aryl iodine. During the reaction, the fibers serve as both the ligand and the support. In all cases, the coupling reactions proceeded efficiently without inert atmosphere. The catalyst can be easily recycled for at least eight times.

Keywords

Amidoxime fibers Fibers-palladium complex Palladium nanoparticles Heterogeneous catalyst Heck reaction
Wu, Z., Wu, Q., Chen, M., & Tao, T. (2013). Fiber-Palladium Complex as Highly Active and Recyclable Catalyst for Heck Reaction in Air. Asian Journal of Chemistry, 25(10), 5783–5786. https://doi.org/10.14233/ajchem.2013.OH90
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