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Inter- and intramolecular phosphonium salt cocatalysis in cyclic carbonate synthesis catalysed by a bimetallic aluminium(salen) complex

Lookup NU author(s): Professor Michael North, Dr Pedro Villuendas, Dr Carl Young

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Abstract

Quaternary phosphoniumsalts can be used as cocatalysts for the conversion of epoxides and carbon dioxide into cyclic carbonates catalysed by bimetallic aluminium(salen) complexes at ambient temperature and one atmosphere pressure. The phosphonium groups could also be attached onto the salen ligands of the bimetallic aluminium(salen) complex to form one-component catalysts, and in this case the catalytic activity was heavily influenced by the solubility of the catalyst in the epoxide substrate. The results are consistent with a previously proposed catalytic cycle for cyclic carbonate synthesis catalysed by bimetallic aluminium(salen) complexes.


Publication metadata

Author(s): North M, Villuendas P, Young C

Publication type: Article

Journal: Tetrahedron Letters

Year: 2012

Volume: 53

Issue: 22

Pages: 2736–2740

Print publication date: 29/03/2012

ISSN (print): 0040-4039

ISSN (electronic): 1873-3581

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.tetlet.2012.03.090

DOI: 10.1016/j.tetlet.2012.03.090


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