The action of ozone on aryl(methyl)-substituted 2- and 4-hydroxyamino- or -nitrosopyrimidines in chloroform gave 2- and 4-nitropyrimidines. The unambiguous character of the process depends on the molar ratio of the substrate and ozone; the side formation of azoxy-, chloro-, and hydroxypyrimidines is possible. 2-Nitro-sym-triazines were obtained by ozonization of substituted 2-hydroxyamino-sym-triazines.

Ozonization of hydroxyamino and nitroso derivatives in chloroform leads to the synthesis of 2- and 4-nitropyrimidines and 2-Nitro-sym-triazines, with side formation of azoxy, chloro, and hydroxypyrimidines possible

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Synthesis of 2- and 4-Nitropyrimidines and 2-Nitro-sym-triazines by ozonization of hydroxyamino and nitroso derivatives

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