Abstract
A thermoregulated ionic liquid and organic biphasic system composed of ionic liquid [CH3(OCH2CH2)16N+Et3][CH3SO3 −] (ILPEG750) with ILPEG750-stabilized Pd nanoparticles and organic solvents, which allows for not only a highly efficient homogeneous catalytic reaction, but also an easy biphasic separation and reuse of catalyst attributed to the thermoregulated phase-transition property of the system, was employed for Heck reaction. The ILPEG750-stabilized Pd nanoparticle catalyst exhibited high efficiency, more importantly, after reaction the Pd nanoparticle catalyst could be separated from products by simple phase separation and recycled for six times without evident loss of activity.
Graphical Abstract
A thermoregulated ionic liquid and organic biphasic system containing [CH3(OCH2CH2)16N+Et3][CH3SO -3 ] (ILPEG750)-stabilized Pd nanoparticles was applied to Heck reaction for the first time. The Pd nanoparticle catalyst exhibited high efficiency and good recyclability.
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Acknowledgments
We gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (Grant No. 21173031) and the Program for New Century Excellent Talents in Universities of China (Grant No. NCET-07-0138).
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Zeng, Y., Wang, Y., Xu, Y. et al. Pd Nanoparticles in the Thermoregulated Ionic Liquid and Organic Biphasic System: An Efficient and Recyclable Catalyst for Heck Reaction. Catal Lett 143, 200–205 (2013). https://doi.org/10.1007/s10562-012-0919-9
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DOI: https://doi.org/10.1007/s10562-012-0919-9