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Conversion of Natural Aldehydes from Eucalyptus citriodora, Cymbopogon citratus, and Lippia multiflora into Oximes: GC-MS and FT-IR Analysis †

Authors :
Robert Flammang
Igor W. K. Ouédraogo
Pascal Gerbaux
M. Boulvin
Yvonne L. Bonzi-Coulibaly
Source :
Molecules; Volume 14; Issue 9; Pages: 3275-3285, Molecules, Vol 14, Iss 9, Pp 3275-3285 (2009), Molecules
Publication Year :
2009
Publisher :
MDPI AG, 2009.

Abstract

Three carbonyl-containing extracts of essential oils from Eucalyptus citriodora (Myrtaceae), Cymbopogon citratus (Gramineae) and Lippia multiflora (Verbenaceae) were used for the preparation of oximes. The reaction mixtures were analyzed by GC-MS and different compounds were identified on the basis of their retention times and mass spectra. We observed quantitative conversion of aldehydes to their corresponding oximes with a purity of 95 to 99%. E and Z stereoisomers of the oximes were obtained and separated by GC-MS. During GC analysis, the high temperature in the injector was shown to cause partial dehydratation of oximes and the resulting nitriles were readily identified. Based on FT-IR spectroscopy, that revealed the high stability and low volatility of these compounds, the so-obtained oximes could be useful for future biological studies.

Details

ISSN :
14203049
Volume :
14
Database :
OpenAIRE
Journal :
Molecules
Accession number :
edsair.doi.dedup.....6630c2e7a947e4fd076dac4e112e91f9
Full Text :
https://doi.org/10.3390/molecules14093275