Supported Ruthenium-Carbene Catalyst on Ionic Magnetic Nanoparticles for Olefin Metathesis
Shu-Wei Chen, Zhi-Cheng Zhang, Miaofeng Ma, Chong-Min Zhong* and Sang-gi Lee*
*Northwest A&F University, Yangling, Shaanxi 712100, P.R. China; Ewha Womans University, Seoul 120-750, Korea, Email: zhongcmnwsuaf.edu.cn, sanggiewha.ac.kr
S.-W. Chen, Z.-C. Zhang, M. Ma, C.-M. Zhong, S.-g. Lee, Org. Lett., 2014, 16, 4969-4971.
DOI: 10.1021/ol5024008 (free Supporting Information)
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A Grubbs-Hoveyda ruthenium-carbene complex, immobilized on ionic magnetic nanoparticles utilizing an imidazolium salt linker, exhibited excellent catalytic activity for ring-closing metathesis (RCM) and cross-metathesis (CM). The catalysts can easily be recovered magnetically and reused up to seven times with minimal leaching of ruthenium species.
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