Methods for preparing alkyl esters of difluoro acetoacetate

The present invention is 4,4-difluoro - acetyl - related to the three-stage process for the production of acetic acid alkyl ester. In the first step, 4-chloro-4,4-difluoro - acetyl - trialkyl acetic acid alkyl ester of formula Alkyl of the above formula (IV) - phosphonic acid esters R Foregoing enamine is hydrolyzed in the presence of an acid in the third stage.