N-(β,β-Difluorovinyl)oxazolidin-2-ones were conveniently prepared in good yields in two steps from the parent oxazolidin-2-ones. The [3+2]- and [4+2]-cycloaddition-type reactions with electron-deficient partners were investigated as first application of these new enamides. TMSOTf was efficient in promoting these two reactions, and the corresponding heterocyclic difluoro adducts were obtained in high yields.