Abstract Monofluoro-oxaloacetate (FOA) was prepared from condensation of ethyl monofluoroacetate with diethyl oxalate, then hydrolysis of the ethyl ester. Difluoro- oxaloacetate (F 2 OA) was prepared by fluorination with ClO 3 F on ditertiobutyl oxaloacetate and hydrolysis of the tertiobutyl ester.
[Alberg, David G.; Lauhon, Charles T.; Nyfeler, Robert; Faessler, Alex; Bartlett, Paul A. Journal of the American Chemical Society, 1992 , vol. 114, # 9 p. 3535 - 3546]