Ethyl bromodifluoroacetate is an ester with the chemical formula F2BrCH−CO2CH2CH3.

It can be used to introduce the CF2 group when synthesising chemical compounds.

It is an ethyl ester of bromodifluoroacetic acid.

And this reaction could happen in the solvent sulfolane.

Ethyl bromodifluoroacetate, and other similar compounds containing a CF2 units can be generated using the Reformatsky reagent with aldehydes and ketones.