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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2242028Generated: November 1, 2026

Hydrochloric Acid → HCID 58154431, compound

https://huagongshe.com/reaction/2242028

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant1,4-DioxaneHCID 31275—
Reactant3,4,5-TrimethoxyanilineHCID 32285—
ReactantHCID 178503462HCID 178503462—
ProductHCID 58154431HCID 58154431—

Reaction Conditions

Temperature150 °C

Reaction Steps

3,4,5-Trimethoxy-phenylamine (10 g, 54.6 mmol) and 2-methylsulfanyl-pyrimidin-4-ol (7.76 g, 54.6 mmol) are mixed and heated to 150° C. for 2 h whereupon the mixture melts. The evolving gas is absorbed in sodium hypochlorite solution. The remaining residue is suspended in acetonitrile (300 ml). POCl3 (10.8 ml, 117 mmol) and 4 N HCl in dioxane (35.2 ml, 140 mmol) are added and the mixture is heated to 90° C. until the reaction is complete. The mixture is extracted with ethyl acetate, washed with sat. sodium bicarbonate and brine. The organic layer is dried with sodium sulfate and evaporated. The residue is crystallized from methanol to give (4-chloro-pyrimidin-2-yl)-(3,4,5-trimethoxy-phenyl)-amine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07671063B2
Source datasetuspto-grants-2010_03
ORD IDord-976a25efaafb4b6aafa56d9c99cb52bc
Source noteuspto-grants-2010_03