Disclosed is a preparation method of 2-phenylacetophenone derivatives which are used as key intermediates in total syntheses of coumestans and isoflavonoids such as coumestrol, genistein and daidzein which are phytoestrogens contained in soybean and black soybean. By using Fries rearrangement in the production, the 2-phenylacetophenone derivatives can be produced with much more simplified synthetic steps than prior art methods. In addition, the time of production is reduced due to short reaction time and easy purification in every step, thereby making it possible to produce 2-phenylacetophenone derivatives with high yields.
                            本发明公开了一种2-苯
乙酰苯酮衍
生物的制备方法,该衍
生物是库默斯坦和异
黄酮的总合成中使用的关键中间体,如库默斯特罗,
葛根素和
大豆异黄酮,它们是大豆和黑豆中含有的植物
雌激素。通过在生产中使用弗里斯重排,2-苯
乙酰苯酮衍
生物可以比先前的方法更简化合成步骤进行生产。此外,由于反应时间短和每个步骤易于纯化,因此减少了生产时间,从而使得可以高产地生产2-苯
乙酰苯酮衍
生物。