Dimethylformamide → N-(1-Ethyl-hexahydro-5-methyl-2,4,6-trioxo-5-pyrimidinyl)-2,3,4,5-tetrafluorobenzamide

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Reaction Steps

A mixture of 5-amino-1-ethyl-5-methylbarbituric acid (0.37 g, 2 mmol), tetrafluorophthalic anhydride (0.44 g, 2 mmol) and DMF (14 mL) was stirred under reflux for 5 hours. The yellow solution was then allowed to cool down to room temperature and poured into water (50 mL). The precipitate that formed was collected by filtration and dried under reduced pressure to give 20f as white crystals.

Provenance & Evidence