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Issue 1, 2016
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An efficient and recyclable tetraoxo-coordinated zinc catalyst for the cycloaddition of epoxides with carbon dioxide at atmospheric pressure

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Abstract

An efficient and recyclable catalytic system of a Zn(O)4-coordinated complex e.g. 2-hydroxypyridine N-oxide zinc(II), Zn(OPO)2 and tetrabutylammonium iodide (TBAI) was developed for the cyclic carbonate synthesis from epoxides and CO2 without the use of any organic solvents. This easily prepared, low-toxic Zn(OPO)2 may have a strong Lewis acidity for the activation of epoxides and exhibited high activity (TOF up to 22 000 h−1) even at a CO2 pressure as low as 1 bar with a broad substrate scope. Furthermore, the catalyst can be easily recovered and reused five times without a significant loss of its catalytic activity.

Graphical abstract: An efficient and recyclable tetraoxo-coordinated zinc catalyst for the cycloaddition of epoxides with carbon dioxide at atmospheric pressure

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Publication details

The article was received on 06 Aug 2015, accepted on 07 Sep 2015 and first published on 08 Sep 2015


Article type: Paper
DOI: 10.1039/C5GC01826A
Green Chem., 2016,18, 226-231

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    An efficient and recyclable tetraoxo-coordinated zinc catalyst for the cycloaddition of epoxides with carbon dioxide at atmospheric pressure

    R. Ma, L. He and Y. Zhou, Green Chem., 2016, 18, 226
    DOI: 10.1039/C5GC01826A

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