The invention relates to a process for the preparation of 2H-isoflavones which process comprises the reaction of a 2-hydroxyaryl alkyl ketone in the presence of a base with a formic-sulfuric anhydride salt which reaction is followed by neutralization. The procedure is especially suitable for the preparation of genistein.
本发明涉及一种制备2H-异
黄酮的方法,该方法包括在碱的存在下,将2-羟基芳基烷基
酮与
甲酸硫酸酐盐反应,然后中和反应。该方法特别适用于制备根黄素。