Abstract N, N-Diacetate of uracil and 5-fluorouracil reacted with trichlorogermane to afford the Michael addition products, 1H, 5H, 6H-3-acetyl-6-trichlorogermylpyrimidine-2, 4-dione and 1H, 5H, 6H-3-acetyl-5-fluoro-6-trichlorogermylpyrimidine-2, 4-dione, respectively, which were hydrolyzed to the corresponding deacetylated germanium sesquioxides.