Issue 10, 2009
From the journal:

Green Chemistry

Phosphonium ionic liquids: design, synthesis and evaluation of biodegradability†

Farzad Atefi,a   M. Teresa Garcia,*b   Robert D. Singer*c  and  Peter J. Scammells*a  

* Corresponding authors

a Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
E-mail: peter.scammells@pharm.monash.edu.au
Fax: +61 3 99039582
Tel: +61 3 9903 9542

b Department of Surfactant Technology, IQAC-CSIC, Jordi Girona 18–26, Spain
E-mail: mtgbet@iiqab.csic.es
Fax: +34 93 204 5904
Tel: +34 93 400 6100

c Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada
E-mail: robert.singer@smu.ca
Fax: +1 902 496 8104
Tel: +1 902 496 8189

Abstract

The biodegradability of a range of phosphonium ionic liquids (ILs) was assessed using the CO2 headspace test (ISO 14593). Tetraalkylphosphonium cations in which one of the alkyl substituents contained ester, ether, alcohol or alkene functionality in order to promote biodegradation were targeted. These cations were paired with halide, triflimide and octylsulfate anions. In contrast to previously studied dialkylimidazolium and alkylpridinium ILs with incorporated ester moieties and octylsulfate anions, the phosphonium ILs showed relatively low levels of biodegradability.

Graphical abstract: Phosphonium ionic liquids: design, synthesis and evaluation of biodegradability

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Article information

DOI
https://doi.org/10.1039/B913057H
Article type
Paper
Submitted
30 Apr 2009
Accepted
10 Jun 2009
First published
21 Jul 2009

Green Chem., 2009,11, 1595-1604

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Phosphonium ionic liquids: design, synthesis and evaluation of biodegradability

F. Atefi, M. T. Garcia, R. D. Singer and P. J. Scammells, Green Chem., 2009, 11, 1595 DOI: 10.1039/B913057H

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