ORGN 159 |
| Jong Ho Kim and Yoon Sik Lee. School of chemical engineering, Seoul national university, San 56-1, Sillim-Dong, Gwanak-gu, Seoul, Korea, Seoul, 151-741, South Korea |
| Poly(imidazoliummethyl styrene)-surface grafted-polystyrene resin was prepared by suspension polymerization as N-heterocyclic carbene precursor for polymer-supported catalyst in Suzuki cross-coupling reaction. To prepare the polymeric support which contains imidazolium group on the surface of the resin, an ionic liquid monomer, 1-methyl-3-(4-vinylbenzyl) imidazolium hexafluorophosphaste [MVBIM][PF6-], was synthesized and then copolymerized with styrene and DVB in an aqueous phase. This new imidazolium group-containing resin was used for preparing NHCs-palladium complex, which efficiently catalyzed the Suzuki cross-coupling of aryl halides and phenylboronic acid. |
|
Asymmetric Reactions and Syntheses, Metal-Mediated Reactions, Materials, Molecular Recognition
8:00 PM-10:00 PM, Sunday, August 22, 2004 Pennsylvania Convention Center -- Hall D, Poster
Division of Organic Chemistry |