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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1912499Generated: October 27, 2026

6-Amino-1-ethyl-5-nitroso-3-propyl-1,3-dihydropyrimidine-2,4-dione → 5,6-diamino-1-ethyl-3-propylpyrimidine-2,4(1H,3H)-dione

https://huagongshe.com/reaction/1912499

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Amino-1-ethyl-5-nitroso-3-propyl-1,3-dihydropyrimidine-2,4-dioneHCID 21916374—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product5,6-diamino-1-ethyl-3-propylpyrimidine-2,4(1H,3H)-dioneHCID 21916396—

Reaction Steps

To a solution of 6-amino-1-ethyl-5-nitroso-3-propyl-1,3-dihydropyrimidine-2,4-dione (300 mg) in methanol (10 ml) was added 10% palladium on carbon catalyst (50 mg), and the mixture was hydrogenated under hydrogen at 30 psi for 2 hours. The mixture was filtered through celite, and solvent was removed from the filtrate under reduced pressure, to provide 5,6-diamino-1-ethyl-3-propyl-1,3-dihydropyrimidine-2,4-dione, a compound of formula (2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609671B2
Source datasetuspto-grants-2013_12
ORD IDord-47710314f9964cf581908b695e5e2103
Source noteuspto-grants-2013_12