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摘要
A new type of Lewis acid-base bifunctional M(salphen) complexes (M=Zn-II, Cu-II, and Ni-II) pending two N-methylhomo- piperazine groups as nucleophiles were prepared by a one-pot method. The Zn(salphen) complexes proved to be efficient and recyclable homogeneous catalysts towards the solvent-free synthesis of cyclic carbonates from epoxides and CO2 in the absence of a co-catalyst. The catalysts can be easily recovered and five times reused without significant loss of activity and selectivity.
- 出版日期2015-5-18
- 单位华南理工大学
