Abstract The reaction of diethylamine with methyl trifluoropropenoate (I), methyl 2-chloro-3, 3- difluoropropenoate (II), methyl 3, 3-difluoropropenoate III) and methyl 3-chloro-2, 3- difluoropropenoate (IV) affords halogenated 3-diethylaminopropenoates V-VII via the vinylic substitution of fluorine or chlorine atoms. When hydrolyzed the latter give methyl N, N- diethylcarbamoylacetates X-XII. On addition of 1-butanol and 2, 2, 3, 3-tetrafluoropropanol ...
