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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276974Generated: October 31, 2026

Thiophenol → HCID 402511, compound

https://huagongshe.com/reaction/276974

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThiophenolHCID 7969—
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 6-chloromethyl-2-oxo-2H-1-benzopyran-3-carboxylateHCID 10659438—
SolventEthanolHCID 702—
ProductHCID 402511HCID 402511—

Reaction Steps

A mixture of 1 g of ethyl 6-chloromethyl-2-oxo-2H-1-benzopyran-3-carboxylate (3.75 mmol), 0.57 g of potassium carbonate (4.13 mmol), 2.07 g of thiophenol (18.75 mmol) and 10 ml of absolute ethanol is reflux for 3 h. After removal of the solvent by distillation under reduced pressure, the residue is taken up in chloroform. The organic phase is washed with water and then dried over MgSO4. The solvent is removed by distillation under reduced pressure and the residue is washed with hexane to remove the excess thiophenol. The title product is recrystallized from ethyl acetate/petroleum ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06355658B1
Source datasetuspto-grants-2002_03
ORD IDord-bc3cf4d6f6734b04aa103da6ccae100d
Source noteuspto-grants-2002_03