期刊
CHEMICAL SCIENCE
卷 10, 期 5, 页码 1549-1554出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc05019h
关键词
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资金
- GSK-EDB [R-143-000-687-592]
- A*STAR RIE2020 AME [A1783c0013]
A salen based molecular cage, salen@cage, was synthesized and complexed with Co and Al to yield metal-salen molecular cages, Co(II)@cage, Co(III)@cage and Al(III)@cage. These cages were demonstrated to be efficient heterogeneous catalysts for the cycloaddition of CO2 with styrene oxide, achieving full conversion at 25 degrees C and 1 atm CO2. Good to excellent yields of various cyclic carbonates were also achieved under mild conditions. Al(III)@cage can be reused up to five times without any significant loss of its high catalytic activity. The capability to access a variety of heterogeneous organometallic catalysts with salen@cage offers new prospects for practical CO2 utilization and chemical manufacturing.
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