[EN] PREPARATION METHOD OF 2-PHENYLACETOPHENONE DERIVATIVES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES DE 2-PHENYLACETOPHENONE
申请人:HANBUL COSMETIC CO LTD
公开号:WO2005054169A1
公开(公告)日:2005-06-16
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.