FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining 1,1-difluoro-2-bromoethylene through dehydrohalogenation of 1,1-difluoro-1,2-dibromoethane with an aqueous 15-30% solution of potassium hydroxide, which is added while stirring with simultaneous distillation of the formed 1,1-difluoro-2-bromoethylene in fractionation mode.
EFFECT: increased output of desired product from 83,2 to 96,3-98,5%.
1 cl, 3 ex
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