Ethyl 2-(ethoxymethylene)-4,4-difluoro-3-oxobutanoate
5-(Ethoxymethylene)-2,2-dimethyl-1,3-dioxane-4,6-dione
Diethyl 2-(ethoxymethylene)malonate
Ethyl ethoxymethylene-3-oxo-4,4,4-trifluorobutyrate
Ethyl (ethoxymethylene)cyanoacetate
Ethyl 2-(ethoxymethylene)-3-oxobutanoate
