2-Acetoxy-l, 3-dicarbonyl compounds were synthesized by two methods, one consisting of the condensation of 1, 3-dicarbonyl compounds with an electrophilic reagent, followed by acetoxylation. By this method three new compounds, ethyl 5-phenyl-2-acetoxy-3- oxopentanoate (XVII), ethyl 5, 5-diphenyl-5-hydroxy-2-acetoxy-3-oxopentanoate (XVIII), and ethyl 2-acetoxy-3-oxoheptanoate (XIX), were obtained. The other method consisted of the ...