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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 855141Generated: October 28, 2026

Ethyl Acetate → HCID 69518240, compound

https://huagongshe.com/reaction/855141

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Chloro-5-ethylpyrimidineHCID 3572763—
ReactantHCID 58934836HCID 58934836—
SolventDimethylformamideHCID 6228—
ProductHCID 69518240HCID 6951824097.8%

Reaction Conditions

Temperature130 °C

Reaction Steps

To a mixture of ethyl 6-chloro-7-hydroxyl-2-(trifluoromethyl)-2H-chromene-3-carboxylate (0.2g, 0.62 mmol) and potassium carbonate (342 mg, 2.48 mmol) in 3 mL of dry DMF was added a reagent of 2-chloro-5-ethylpyrimidine (450 uL, 3.72 mmol). The reaction was then heated at 130° C. for 51 hours. After cooling to room temperature, to the reaction was added 150 mL of EtOAc. The resulting organic phase was washed with brine, and dried over anhydrous magnesium sulfate. After removing the solvents, the residue was purified on a short silica gel column with EtOAc/Hexane to afford 260 mg of a brown oil, which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07259266B2
Source datasetuspto-grants-2007_08
ORD IDord-5c45c057c1ef4dcba3c12f6f32d0774f
Source noteuspto-grants-2007_08