Synthetic method of diflubenzuron impurities for quantitative and qualitative analysis

The invention relates to a synthetic method of diflubenzuron impurities for quantitative and qualitative analysis, and belongs to the technical field of pesticide synthesis. The diflubenzuron impurities are synthesized in the following way, wherein R is the same or different and is independently selected from halogens; A is a chemical bond or carbonyl; m is 1 or 2; and n is 1 or 2. The two diflubenzuron bulk drug impurities are synthesized through experiments and can be used for qualitative and quantitative analysis of the diflubenzuron impurities, finally, the quality of the diflubenzuron bulk drug is further improved, and the influence of potential impurities brought by use of pesticide diflubenzuron on environment pollution and human body health is reduced. 本发明涉及一种用于定量定性分析的除虫脲杂质的合成方法，属于农药合成的技术领域。是通过以下方式合成的：其中，R各自相同或不同，其各自独立的选自卤素；A为化学键或羰基；m为1或2；n为1或2。本发明通过实验合成得到两种除虫脲原料药杂质，可用于除虫脲杂质的定性定量分析，最终进一步提高除虫脲原料药的品质，减少因农药除虫脲的使用带来潜在的杂质对环境污染和人类身体健康的影响。