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Polymer-supported N-heterocyclic carbene-palladium complex for heterogeneous Suzuki cross-coupling reaction

Title
Polymer-supported N-heterocyclic carbene-palladium complex for heterogeneous Suzuki cross-coupling reaction
Author
김종호
Issue Date
2005-08
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF ORGANIC CHEMISTRY, v. 70, No. 17, Page. 6714-6720
Abstract
Poly(1-methylimidazoliummethyl styrene)-surface grafted-polystyrene) resin was prepared for the first time as a polymer-supported N-heterocyclic carbene (NHC) precursor for palladium complex by suspension polymerization. To prepare this polymer-supported NHC precursor, 1-methyl-3-(4vinylbenzyl)imidazolium hexafluorophosphate, [MVBIM] [PF(6)(-)], was synthesized as a monomer and copolymerized with styrene and DVB in water. This polymer-supported NHC precursor with imidazolium as a ligand, which exists solely on the surface of the resin, was well characterized by FE-SEM, CLSM, and IR spectroscopy. The precursor containing imidazolium readily formed a stable complex with Pd(OAc)(2) , and this polymer-supported N-heterocyclic carbene-palladium complex exhibited excellent catalytic activity for Suzuki cross-coupling reaction in an aqueous medium. The catalyst was recovered quantitatively from the reaction mixture by simple filtration and was able to be reused for a number of recycles with consistent activity in all of the coupling reactions.
URI
https://pubs.acs.org/doi/abs/10.1021/jo050721mhttps://repository.hanyang.ac.kr/handle/20.500.11754/111366
ISSN
0022-3263
DOI
10.1021/jo050721m
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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