| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5289792 | Tetrahedron Letters | 2006 | 4 Pages |
Abstract
We synthesized amphiphilic polymer-supported N-heterocyclic carbene (NHC) precursor resins by loading polyethylene glycol (PEG) containing imidazolium groups on Merrifield resin. These PS-PEG-NHC precursor resins were compatible with water and readily formed a stable complex with palladium. These PS-PEG-NHC-Pd catalysts showed excellent catalytic activity for Suzuki cross-coupling reactions of various aryl iodides and bromides with phenylboronic acid in water than the previously described polystyrene based catalysts. In addition, the PS-PEG-NHC-Pd catalysts continued to provide excellent catalytic activity in Suzuki cross-coupling reactions after five consecutive recycles.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Jung-Woo Kim, Jong-Ho Kim, Dong-Ho Lee, Yoon-Sik Lee,