Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 708, Issue -, Pages 118-124Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2012.03.006
Keywords
Palladium nanoparticle; Silicadiphenyl phosphinite; Suzuki-Miyaura reaction; Mizoroki-Heck reaction; Heterogeneous catalyst
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Funding
- Shiraz university research council
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A very easy method is described for direct phosphorylation of silica gel to afford silica diphenylphosphinite (SDPP). This new phosphorylated silica contains higher amounts of P(III) moiety compared to the method based on the sol-gel technique. The phosphorylated silica reacts with Pd(II) to produce nano Pd(0)/SDPP which was characterized by different techniques. The obtained nano Pd(0) catalyst exhibited excellent reactivity and stability in the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions with different aryl iodides and bromides. This heterogeneous catalyst can be easily recovered and reused in several runs. (C) 2012 Elsevier B.V. All rights reserved.
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