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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2417587Generated: October 31, 2026

Acetic Acid → 1-Butyl-5-nitroso-6-aminouracil

https://huagongshe.com/reaction/2417587

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant6-Amino-1-butyl-1,2,3,4-tetrahydropyrimidine-2,4-dioneHCID 2428996—
ReactantSodium NitriteHCID 23668193—
SolventWaterHCID 962—
Product1-Butyl-5-nitroso-6-aminouracilHCID 1079857084.8%

Reaction Steps

91.5 g (0.5 mole) of 1-butyl-6-aminouracil are suspended in 1 liter of water in a reactor equipped with a magnetic stirrer. A solution of 38 g of sodium nitrite in 250 ml of water is added to the suspension. 65 ml of acetic acid are then run in dropwise with stirring, after which the mixture is stirred for 18 hours at ambient temperature. After cooling in an ice bath, the precipitate is filtered, giving 90 g of violet-coloured crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04469698
Source datasetuspto-grants-1984_09
ORD IDord-bd387df646fc42789b29908dabe89278
Source noteuspto-grants-1984_09