Abstract
A convenient synthetic route of deuterium-labeled D5-cyhalothrin, D5-fenpropathrin, and D5-fenvalerate is described with 98.7%, 98.5%, and 98.3% isotopic enrichment and high chemical purities using D6-phenol as labeled starting material. These structures and isotope-abundance were confirmed by 1H NMR and mass spectrometry. The prepared D5-cyhalothrin, D5-fenpropathrin, and D5- fenvalerate can be used as a standard internal reagent for the determination of residual pyrethroids of food and environment.
Keywords: D5-cyhalothrin, D5-fenpropathrin, D5-fenvalerate, isotopic abundance, food safety, standard internal reagent.
Graphical Abstract
[http://dx.doi.org/10.1038/248710a0] [PMID: 4833277]
[http://dx.doi.org/10.1016/j.chemosphere.2015.11.025] [PMID: 26615491]
[http://dx.doi.org/10.1080/15287390902800447] [PMID: 19557612]
[http://dx.doi.org/10.1016/j.talanta.2011.10.033] [PMID: 22265489]
[http://dx.doi.org/10.1016/j.phpro.2012.03.310]
[http://dx.doi.org/10.1007/s00216-016-9865-5] [PMID: 27544519]
[http://dx.doi.org/10.1016/j.forsciint.2019.06.004] [PMID: 31255840]
[http://dx.doi.org/10.1016/j.talanta.2005.09.006] [PMID: 18970538]
[http://dx.doi.org/10.1016/j.talanta.2010.12.041] [PMID: 21315911]
[http://dx.doi.org/10.1016/j.chroma.2009.03.077] [PMID: 19393156]
[http://dx.doi.org/10.1021/jf3048912] [PMID: 23425568]
[http://dx.doi.org/10.1007/s00216-009-3442-0] [PMID: 20101497]
[http://dx.doi.org/10.1002/jlcr.2915]