Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 396, Issue -, Pages 55-60Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2014.09.031
Keywords
Water-soluble palladium-catalyst; Ionic salt; Heck coupling; Recycle; Ionic liquid
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Funding
- National Natural Science Foundation of China [21176110]
- Jiangsu Province Natural Science Foundation [BK20141311]
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A novel and water-soluble palladium-salen catalyst modified by pyridinium salt was synthesized and characterized by NMR, HRMS, FF-IR, ICP, elemental analysis and UV-vis spectroscopy. The catalyst can efficiently catalyze the Heck reaction between aryl halides and olefins. The reaction using 0.5 mol% catalyst can achieve 98.3% conversion with 99% selectivity. The catalytic activity of catalyst modified by pyridinium salt is higher than that of un-modified one. Furthermore, the catalyst can be easily separated from reaction system by water wash and subsequently recycled for six runs without significant loss of activity and selectivity. (C) 2014 Elsevier B.V. All rights reserved.
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