Acetic Acid → HCID 178424316, compound

Participants

Reaction Steps

A mixture of 1-benzyl-5-methyl-6-o-tolyl-3,6-dihydro-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (4.0 g, 12.07 mmol), acetic acid (150 mL), ethanol (25 mL), and palladium hydroxide on carbon (4.0 g) was hydrogenated on a Parr apparatus. After 5 hours the catalyst was filtered off and replaced with fresh palladium hydroxide on carbon (4.0 g). The hydrogenation was continued 48 hours longer. The reaction was filtered and the filtrate was concentrated to afford 5-methyl-6-o-tolyl-3,6-dihydro-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (0.488 g, 17%) as a white powder.

Provenance & Evidence