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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1065738Generated: October 31, 2026

Thionyl Chloride → HCID 12800625, compound

https://huagongshe.com/reaction/1065738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant6,7-Bis(ethoxycarbonyloxy)chromone-3-carboxylic acidHCID 12800624—
SolventBenzeneHCID 241—
ProductHCID 12800625HCID 12800625—

Reaction Steps

The compound (3) (1.1 g) was dissolved in 20 ml of benzene, and 2 ml of thionyl chloride was added dropwise at room temperature with stirring. Then, the mixture was refluxed with stirring. The reaction mixture was concentrated, and n-hexane was added to the concentrate to crystallize it. The resulting crystals wer collected by filtration, washed with n-hexane and dried to afford 980 mg of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04331606
Source datasetuspto-grants-1982_05
ORD IDord-915e242ef3d2415bba279baa8c393d03
Source noteuspto-grants-1982_05