Tetrahedron letters

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

M North, P Villuendas, C Young

Index: North, Michael; Villuendas, Pedro; Young, Carl Tetrahedron Letters, 2012 , vol. 53, # 22 p. 2736 - 2740

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Citation Number: 33

Abstract

Quaternary phosphonium salts 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 ...