Microwave-assisted nucleophilic degradation of organophosphorus pesticides in propylene carbonate
作者:Daniela Millán、Mabel Rojas、Ricardo A. Tapia、Paulina Pavez
DOI:10.1039/d0ob01620a
日期:——
°C) was performed under microwave heating. The pesticide degradation was followed by 31P NMR, and the extent of conversion (%) was calculated by the integration of phosphorus signals. Keeping in mind that recently it has been reported that some ionic liquids play a nucleophilic role, in this work we report for the first time the degradation of organophosphorus pesticides by using an amino acid-based
在化学反应研究中,碳酸丙烯酯正在成为挥发性有机溶剂的合适绿色替代品。在这项研究中,提出了一种以碳酸亚丙酯为溶剂,对五种有机磷农药杀螟硫磷、马拉硫磷、二嗪农、对硫磷和对氧磷进行亲核降解的有效方法。研究了改变亲核试剂性质的影响和微波 (MW) 加热的影响。在微波加热下进行温度筛选(50°C-120°C)。农药降解紧随其后的是31P NMR和转化程度(%)通过磷信号的积分计算。请记住,最近有报道称一些离子液体具有亲核作用,在这项工作中,我们首次报道了使用基于氨基酸的离子液体(如 Bmim[Ala])作为亲核试剂降解有机磷农药以及作为反应介质的生物基溶剂(碳酸亚丙酯)与微波加热相结合。