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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 59121Generated: October 27, 2026

Cesium carbonate → 4-(1-Ethoxyvinyl)-N-(3-methoxy-4-(2-methyloxazol-5-yl)phenyl)-6-((2,2,2-trifluoroethoxy)-methyl)pyrimidin-2-amine

https://huagongshe.com/reaction/59121

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-(Dicyclohexylphosphino)biphenylHCID 2734216—
Reactant3-Methoxy-4-(2-methyloxazol-5-yl)benzenamineHCID 68632159—
Reactant2-Chloro-4-(1-ethoxyvinyl)-6-((2,2,2-trifluoroethoxy)methyl)pyrimidineHCID 117820799—
Catalystpalladium(II) acetateHCID 167845—
Solvent1,4-DioxaneHCID 31275—
Product4-(1-Ethoxyvinyl)-N-(3-methoxy-4-(2-methyloxazol-5-yl)phenyl)-6-((2,2,2-trifluoroethoxy)-methyl)pyrimidin-2-amineHCID 117821137—

Reaction Conditions

Temperature120 °C

Reaction Steps

2-Chloro-4-(1-ethoxyvinyl)-6-((2,2,2-trifluoroethoxy)methyl)pyrimidine (0.10 g, 0.34 mmol) was dissolved in dioxane (5 mL). 3-Methoxy-4-(2-methyloxazol-5-yl)aniline (0.069 g, 0.34 mmol), cesium carbonate (0.220 g, 0.67 mmol), palladium(II) acetate (0.011 g, 0.05 mmol) and 2-(dicyclohexylphosphino)biphenyl (0.018 g, 0.05 mmol) were added. The vial was capped, evacuated and flushed with nitrogen. The mixture was heated by microwave irradiation at 120° C. for 1.5 h. The solvents were evaporated. EtOAc was added and the mixture was filtered through a plug of silica. The solvents were evaporated and the residue was purified by column chromatography on silica eluting with EtAOc to give the title compound as a solid, 138 mg (88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09439904B2
Source datasetuspto-grants-2016_09
ORD IDord-277baf025f194474993e4fcea85753a3
Source noteuspto-grants-2016_09