Disclosed is a practical method for production of 3,3-difluoro-2-hydroxypropionic acid, which is important as pharmaceutical and agrichemical intermediates. The method includes forming a 4,4-difluoro-2,2-dichloro-3-oxobutanoic acid ester by reaction of a 4,4-difluoro-3-oxobutanoic acid ester with chlorine (Cl
2
), forming 3,3-difluoro-1,1-dichloro-2-propanone by reaction of the chlorination product with an acid, and then, reacting the degradation product with a basic aqueous solution.
揭示了一种用于生产3,3-二
氟-2-羟基
丙酸的实用方法,该方法作为药用和农药中间体具有重要意义。该方法包括通过将4,4-二
氟-
3-氧代丁酸酯与
氯(Cl2)反应形成4,4-二
氟-2,2-二
氯-
3-氧代丁酸酯,通过将
氯化产物与酸反应形成3,3-二
氟-1,1-二
氯-2-
丙酮,然后将降解产物与碱性
水溶液反应。