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Pd nanoparticles immobilized on PNIPAM–halloysite: highly active and reusable catalyst for Suzuki–Miyaura coupling reactions in water |
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| Authors: | Myeng Chan Hong Hyunseok Ahn Myung Chan Choi Yongwoo Lee Jongsik Kim Hakjune Rhee |
| Institution: | 1. Department of Chemistry and Applied Chemistry, Hanyang University, Ansan, Kyunggi‐do, Korea;2. Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi‐do, Korea;3. Department of Chemical Engineering, Hanyang University, Ansan, Kyunggi‐do, Korea;4. Department of Chemistry, Dong‐A University, Busan, Korea |
| Abstract: | Poly(N‐isopropylacrylamide)–halloysite (PNIPAM‐HNT) nanocomposites exhibited inverse temperature solubility with a lower critical solution temperature (LCST) in water. Palladium (Pd) nanoparticles were anchored on PNIPAM‐HNT nanocomposites with various amounts of HNT from 5 to 30 wt%. These Pd catalysts exhibited excellent reactivities for Suzuki–Miyaura coupling reactions at 50–70 °C in water. In particular, Pd anchored PNIPAM/HNT (95:5 w/w ratio) nanocomposites showed excellent recyclability up to 10 times in 96% average yield by simple filtration. Copyright © 2014 John Wiley & Sons, Ltd. |
| Keywords: | Suzuki– Miyaura reactions Pd nanoparticles PNIPAM‐halloysite nanocomposite reusable catalysts water |