The products (e.g, I, II) obtained by Michael reaction between acrylonitrile or methyl acrylate and diethyl fluoromalonate or -preferably -fluoromalondiamide, gave upon hydrolysis and partial decarboxylation, 2-fluoroglutaric acid (III). The reactions of this acid as well as some other attempts at new routes leading to y-fluoroglutamic acid (XV) are described.