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3,4-Dihydropyrimidin-2(1H)-ones(DHPMs) were oxidized with 1.2 equiv.of nitrosonium tetrafluoroborate(NO~+BF_4~-) to pyrimidin-2(1H)-ones in acetonitrile at room temperature in high yields.
3,4-Dihydropyrimidin-2 (1H) -ones (DHPMs) were oxidized with 1.2 equiv. Of nitrosonium tetrafluoroborate (NO ~ + BF_4 ~) to pyrimidin-