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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1856261Generated: October 25, 2026

Hydrochloric Acid → 2-[2-(5-Methyl-4-imidazolylmethylthio)ethylamino]-5-(4-methylbenzyl)-4-pyrimidone dihydrochloride

https://huagongshe.com/reaction/1856261

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2(1H)-PyrimidinoneHCID 68401—
Reactant4-(((2-Aminoethyl)thio)methyl)-5-methylimidazoleHCID 665568—
Reactant5-[(4-methylphenyl)methyl]-2-sulfanylidene-1H-pyrimidin-4-oneHCID 3939388—
Reactant5-(4-Methylbenzyl)-2-methylthio-4-pyrimidoneHCID 12951509—
Product2-[2-(5-Methyl-4-imidazolylmethylthio)ethylamino]-5-(4-methylbenzyl)-4-pyrimidone dihydrochlorideHCID 23346197—

Reaction Steps

5-(4-Methylbenzyl)-2-thiouracil (4.65 g) was converted into 5-(4-methylbenzyl)-2-methylthio-4-pyrimidone (m.p. 208.5°-211° ex methanol/ethanol) by the method described in Example 1(i). Reaction of this pyrimidone (1.6 g) with 2-(5-methyl-4-imidazolylmethylthio)ethylamine (1.2 g) by the method described in Example 1(ii) and acidification with dilute ethanolic hydrogen chloride followed by evaporation to dryness and recrystallisation from ethanol gave 2-[2-(5-methyl-4-imidazolylmethylthio)ethylamino]-5-(4-methylbenzyl)-4-pyrimidone dihydrochloride, m.p. 197°-198.5°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04218452
Source datasetuspto-grants-1980_08
ORD IDord-517719fe87e249f5aadfe4bf9bc0074a
Source noteuspto-grants-1980_08