FIELD: chemistry.
SUBSTANCE: present invention relates to methods for converting acrylic acid esters or their derivatives to difluoropropionic acid or its derivatives. Process for preparation of 2,3-difluoropropionic acid derivatives comprises forming a reaction mixture comprising a fluorocarbon or fluorocarbon solvent, fluorine gas and a compound of formula 5 to form a compound of formula 6, and bringing the compound of formula 6 into contact with an alcohol and a catalyst; wherein reaction mixture contains at least about 50 % of a compound of formula 6 based on the number of moles of the compound of formula 5 added to the reaction mixture. 
substance 5; 
substance 6.
EFFECT: method allows to obtain intermediate product with a maximum yield and minimization of adverse reactions.
18 cl, 9 ex, 7 tbl
| Title | Year | Author | Number |
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SU795467A3 |
