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Green aspects during synthesis, application and chromatographic analysis of chiral pesticides
Trends in Environmental Analytical Chemistry ( IF 11.1 ) Pub Date : 2020-05-24 , DOI: 10.1016/j.teac.2020.e00093
Herbert Musarurwa , Nikita Tawanda Tavengwa

The agro-industry uses large quantities of chiral pesticides to mitigate the detrimental effects of pests on crops. Pesticides play a very important role of insuring food security in the world but this benefit may be eroded if principles of green chemistry are not embraced during their synthesis, application and analysis. Commercial chiral pesticide formulations are, usually, synthesised and sold as racemates. The enantiomers of the chiral pesticides in these racemic mixtures usually have enantioselective bioactivities on target organisms. One enantiomer, usually, will be active on the target organism while others are inactive and are discharged into the environment, posing serious pollution problems. This is a serious environmental problem and can be rectified through embracing general principles of green chemistry. This paper reviews the aspects that can enhance greenness during synthesis and the subsequent application of chiral pesticides during pest management in the agro-industry. Particular emphasis is placed on stereo-selective synthesis of chiral pesticides and the application of their enantiopure formulations. The green aspects during chromatographic separation of enantiomers of chiral pesticides are also discussed. These include the use of green mobile and chiral stationary phases during chromatographic analysis of chiral pesticides.



中文翻译:

手性农药的合成,应用和色谱分析的绿色方面

农业工业使用大量的手性农药,以减轻害虫对农作物的有害影响。农药在确保世界粮食安全方面发挥着非常重要的作用,但是如果在合成,应用和分析过程中不遵循绿色化学原理,这种益处可能会被削弱。商业手性农药制剂通常是合成的,并以消旋体形式出售。这些外消旋混合物中的手性农药的对映异构体通常对目标生物具有对映选择性的生物活性。通常,一种对映异构体对目标生物具有活性,而其他对映异构体则无活性并排放到环境中,造成严重的污染问题。这是一个严重的环境问题,可以通过拥抱绿色化学的一般原理来纠正。本文综述了可以提高合成过程中绿色度的方面,以及在农用工业虫害管理过程中手性农药的后续应用。特别强调手性农药的立体选择性合成及其对映纯制剂的应用。还讨论了手性农药对映体色谱分离中的绿色方面。其中包括在手性农药色谱分析中使用绿色流动相和手性固定相。还讨论了手性农药对映体色谱分离中的绿色方面。其中包括在手性农药色谱分析中使用绿色流动相和手性固定相。还讨论了手性农药对映体色谱分离中的绿色方面。其中包括在手性农药色谱分析中使用绿色流动相和手性固定相。

更新日期:2020-05-24
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