Catalysis with palladium colloids supported in poly(acrylic acid)-grafted polyethylene and polystyrene Academic Article

abstract

• Grafts of poly(acrylic acid) on polyethylene powder (PE-g-PAA) or polystyrene (PS-g-PAA) can be used to support Pd(0) crystallites that function like a homogeneous Pd(0) catalyst in some reactions. These PdPE-g-PAA catalysts were active in allylic substitution reactions in the presence of added phosphine ligand. A catalyst analogous to the PdPE-g-PAA powder catalyst on polystyrene (PdPS-g-PAA) was similarly active for allylic substitution and could also be used in Heck reactions at 80100C in N,N-dimethylacetamide (DMA). Analysis of the product solutions for Pd leachate and a correlation of the Pd leaching with product formation in the allylic substitution chemistry for both types of catalysts suggests that the active catalysts in these reactions are leached from the support. In the case of the allylic substitution reaction, external triphenylphosphine and substrate together are required for the chemistry and Pd leaching.Key words: catalysis, palladium, allylic substitution, grafted polystyrene, supported catalysts.

authors

• Bergbreiter, David

published proceedings

• CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE

author list (cited authors)

• Bergbreiter, D. E., Kippenberger, A., & Zhong, Z.

citation count

• 7

complete list of authors

• Bergbreiter, David E||Kippenberger, Andrew||Zhong, Zhenqi

publication date

• October 2006

publisher

• Canadian Science Publishing  Publisher

published in

• Canadian Journal of Chemistry  Journal

keywords

• Allylic Substitution
• Catalysis
• Grafted Polystyrene
• Palladium
• Supported Catalysts

Digital Object Identifier (DOI)

• 10.1139/V06-076

start page

• 1343

end page

• 1350

volume

• 84

issue

• 10

URL

• http%3A%2F%2Fdx.doi.org%2F10.1139%2Fv06-076