Oxidation of 3,4-dihydropyrimidin-2(1H)-ones with nitrosonium (NO~+)

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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.
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