Nitration of 2-Substituted Pyrimidine-4,6-diones, Structure and Reactivity of 5,5-gem-Dinitropyrimidine-4,6-diones

Nitration of some 2-substituted pyrimidine-4,6-diones in sulfuric acid was studied, which afforded previously unknown 5,5-gem-dinitropyrimidine-4,6-diones in high yields. The gem -dinitro products were easily attacked by nucleophiles with concomitant formation of gem-dinitroacetyl derivatives, which...

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