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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 577154Generated: October 28, 2026

Hydrochloric Acid → 2-[(4-chloro-2-ethyl-3-pyridinyl)methylsulfanyl]-6-(trifluoromethyl)-1H-pyrimidin-4-one;hydrochloride

https://huagongshe.com/reaction/577154

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 178437620HCID 178437620—
SolventMethanolHCID 887—
Product2-[(4-chloro-2-ethyl-3-pyridinyl)methylsulfanyl]-6-(trifluoromethyl)-1H-pyrimidin-4-one;hydrochlorideHCID 178437621175.5%

Reaction Steps

2-{[(4-chloro-2-ethylpyridin-3-yl)methyl]sulfanyl}-6-(trifluoromethyl)pyrimidin-4-ol (165 mg, 472 μmol) was stirred in methanol (20 mL) and a solution of 4 N HCl in dioxane (180 μL, 708 μmol) was added dropwise at 0° C. The mixture was stirred for 30 minutes at room temperature. The solvent was removed by evaporation, and the residue was triturated with diethyl ether and dried in vacuo to afford 2-{[(4-chloro-2-ethylpyridin-3-yl)methyl]sulfanyl}-6-(trifluoromethyl)pyrimidin-4-ol hydrochloride (160 mg, 88% yield); 1H NMR (400 MHz, DMSO-d6): δ 1.21 (t, J=7.4 Hz, 3H), 3.05 (q, J=7.4 Hz, 2H), 4.69 (s, 2H), 6.71 (s, 1H), 7.71 (d, J=5.7 Hz, 1H), 8.53 (d, J=5.7 Hz, 1H); LRMS (ES+) m/z 350 (100%, M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040538B2
Source datasetuspto-grants-2015_05
ORD IDord-e8f891637d4d4e67a4a91b55342a45c4
Source noteuspto-grants-2015_05