TY - JOUR
T1 - N-heterocyclic carbene-palladium complex immobilized on silica nanoparticles. Recyclable catalyst for high yield Suzuki and Heck coupling reactions under mild conditions
AU - Tandukar, Shikchya
AU - Sen, Ayusman
N1 - Funding Information:
We thank the Department of Energy, Office of Basic Energy Sciences for funding.
PY - 2007/5/1
Y1 - 2007/5/1
N2 - N-heterocyclic carbene-palladium (NHC-Pd) complexes immobilized on ∼10 nm silica nanoparticles were synthesized. Because of the very high surface area and small size, these nanoparticles remain suspended in a variety of solvents with the catalyst sites readily accessible to the reactants. The catalysts showed excellent activity towards Suzuki coupling reaction of different aryl iodides and bromides with phenyl boronic acid using isopropanol: H2O as solvent. They were also effective for Heck coupling. The nano-sized particles can be easily recovered and repeatedly reused without loss of activity.
AB - N-heterocyclic carbene-palladium (NHC-Pd) complexes immobilized on ∼10 nm silica nanoparticles were synthesized. Because of the very high surface area and small size, these nanoparticles remain suspended in a variety of solvents with the catalyst sites readily accessible to the reactants. The catalysts showed excellent activity towards Suzuki coupling reaction of different aryl iodides and bromides with phenyl boronic acid using isopropanol: H2O as solvent. They were also effective for Heck coupling. The nano-sized particles can be easily recovered and repeatedly reused without loss of activity.
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U2 - 10.1016/j.molcata.2006.12.003
DO - 10.1016/j.molcata.2006.12.003
M3 - Article
AN - SCOPUS:33947606300
SN - 1381-1169
VL - 268
SP - 112
EP - 119
JO - Journal of Molecular Catalysis A: Chemical
JF - Journal of Molecular Catalysis A: Chemical
IS - 1-2
ER -