Please use this identifier to cite or link to this item: https://doi.org/10.1039/c8sc05019h
Title: Metal-salen molecular cages as efficient and recyclable heterogeneous catalysts for cycloaddition of CO2 with epoxides under ambient conditions
Authors: Ng, C.K.
Toh, R.W. 
Lin, T.T.
Luo, H.-K.
Hor, T.S.A.
Wu, J. 
Issue Date: 2019
Publisher: Royal Society of Chemistry
Citation: Ng, C.K., Toh, R.W., Lin, T.T., Luo, H.-K., Hor, T.S.A., Wu, J. (2019). Metal-salen molecular cages as efficient and recyclable heterogeneous catalysts for cycloaddition of CO2 with epoxides under ambient conditions. Chemical Science 10 (5) : 1549-1554. ScholarBank@NUS Repository. https://doi.org/10.1039/c8sc05019h
Rights: Attribution-NonCommercial 4.0 International
Abstract: 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 °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. © The Royal Society of Chemistry 2019.
Source Title: Chemical Science
URI: https://scholarbank.nus.edu.sg/handle/10635/210050
ISSN: 2041-6520
DOI: 10.1039/c8sc05019h
Rights: Attribution-NonCommercial 4.0 International
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