Catalysis Letters

, 141:866

PEG Modification Effect of Silica on the Suzuki–Miyaura Coupling Reaction Using Silica-immobilized Palladium Catalysts

Article

DOI: 10.1007/s10562-011-0583-5

Cite this article as:
Onozawa, S., Fukaya, N., Saitou, K. et al. Catal Lett (2011) 141: 866. doi:10.1007/s10562-011-0583-5

Abstract

The Pd phosphine complex catalysts immobilized onto polyethylene glycol (PEG)-modified silica were prepared in order to clarify the effect of the PEG modification on the Suzuki–Miyaura coupling reaction in organic solvents. For the reaction of ethyl p-bromobenzoate and phenylboronic acid in the presence of potassium carbonate in toluene, the PEG-modified silica-immobilized Pd catalysts exhibited much higher activities than the catalysts without PEG modification.

Graphical Abstract

https://static-content.springer.com/image/art%3A10.1007%2Fs10562-011-0583-5/MediaObjects/10562_2011_583_Figa_HTML.gif

Keywords

Immobilized Pd phosphine complexPolyethylene glycolSuzuki–Miyaura coupling reactionMesoporous silicaHeterogeneous catalysis

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.National Institute of Advanced Industrial Science and Technology (AIST)TsukubaJapan