Macroporous polystyrene-supported palladium catalyst containing a bulky N-heterocyclic carbene ligand for Suzuki reaction of aryl chlorides |
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| Authors: | Lee Dong-Ho Kim Jong-Ho Jun Bong-Hyun Kang Homan Park Juyoung Lee Yoon-Sik |
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| Affiliation: | School of Chemical and Biological Engineering, Seoul National University, Interdisciplinary Program in Nano-science and Technology, Seoul National University, Seoul, South Korea. |
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| Abstract: | Macroporous polystyrene (MPS)-supported 1-mesitylimidazolium chloride resin was prepared by reacting macroporous chloromethyl polystyrene with 1-mesitylimidazole as a supported N-heterocyclic carbene (NHC) precursor for the immobilization of a palladium catalyst. This MPS-supported NHC precursor readily formed a stable complex with Pd(OAc)2, which effectively catalyzed the Suzuki reaction of aryl iodide and bromides at room temperature and even aryl chlorides at elevated temperatures (100 degrees C). This catalyst showed reusability in the Suzuki reaction of aryl bromide. |
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