Issue 1, 2009
From the journal:

Green Chemistry

Biodegradable pyridinium ionic liquids: design, synthesis and evaluation

Jitendra R. Harjani,a   Robert D. Singer,b   M. Teresa Garciac  and  Peter J. Scammells*a  

* Corresponding authors

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

b Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada

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

Abstract

A range of ionic liquids (ILs) with a pyridinium cation were synthesised and their biodegradability was evaluated using the CO2 Headspace test (ISO 14593). ILs bearing an ester side chain moiety were prepared from either pyridine or nicotinic acid and showed high levels of biodegradation under aerobic conditions and can be classified as ‘readily biodegradable’. In contrast, pyridinium ILs with alkyl side chains showed significantly lower levels of biodegradability in the same test. The utility of the biodegradable IL 6c as a reaction solvent for the Diels–Alder reaction was also investigated.

Graphical abstract: Biodegradable pyridinium ionic liquids: design, synthesis and evaluation

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Article information

DOI
https://doi.org/10.1039/B811814K
Article type
Paper
Submitted
10 Jul 2008
Accepted
30 Sep 2008
First published
07 Nov 2008

Green Chem., 2009,11, 83-90

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Biodegradable pyridinium ionic liquids: design, synthesis and evaluation

J. R. Harjani, R. D. Singer, M. T. Garcia and P. J. Scammells, Green Chem., 2009, 11, 83 DOI: 10.1039/B811814K

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