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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2211816Generated: November 2, 2026

Hydrochloric Acid → 5-(Hydroxymethyl)uracil

https://huagongshe.com/reaction/2211816

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
ReactantUracilHCID 1174—
ReactantPotassium HydroxideHCID 14797—
SolventWaterHCID 962—
Product5-(Hydroxymethyl)uracilHCID 7816844%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of uracil (3.6 g, 32.1 mmol), formaldehyde (37% in water) (3.25 ml), KOH (1.4 g, 25 mmol) in water (45 ml) was stirred at 50° C. for 20 h. The reaction was acidified with 1 N HCl to give a white precipitate. The solids were collected dried under vacuum to give the 5-(hydroxymethyl)-2,4(1H,3H)-pyrimidinedione (2.01 g, 44%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07101883B2
Source datasetuspto-grants-2006_09
ORD IDord-3abb09e205ff4e8abed8834728a6277f
Source noteuspto-grants-2006_09