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- Title
PEG Modification Effect of Silica on the Suzuki-Miyaura Coupling Reaction Using Silica-immobilized Palladium Catalysts.
- Authors
Onozawa, Shun-ya; Fukaya, Norihisa; Saitou, Kaori; Sakakura, Toshiyasu; Yasuda, Hiroyuki
- 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: [Figure not available: see fulltext.]
- Subjects
POLYETHYLENE glycol; PHOSPHINE; PALLADIUM catalysts; SILICA; CHEMICAL reactions; ORGANIC solvents; TOLUENE; BENZOATES; HETEROGENEOUS catalysis; METAL complexes
- Publication
Catalysis Letters, 2011, Vol 141, Issue 6, p866
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-011-0583-5