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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2290764Generated: October 30, 2026

Ethanesulfonyl chloride → Ethanesulfonic acid;7-hydroxy-3,4-dimethylchromen-2-one

https://huagongshe.com/reaction/2290764

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanesulfonyl chlorideHCID 11667—
Reactant7-hydroxy-3,4-dimethyl-2H-chromen-2-oneHCID 5412990—
SolventWaterHCID 962—
SolventSodium HydroxideHCID 14798—
ProductEthanesulfonic acid;7-hydroxy-3,4-dimethylchromen-2-oneHCID 86741079—

Reaction Steps

5.0 g of 7-hydroxy-3,4-dimethylcoumarin were dissolved in 20 ml of H2O/1.1 g of NaOH at room temperature, while stirring, and 3.4 g of ethanesulfonyl chloride were added. The mixture was stirred overnight, and the precipitate was filtered off under suction and recrystallized from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04618622
Source datasetuspto-grants-1986_10
ORD IDord-6ef9b4ad9f104ef58760f70b6ee8b4cf
Source noteuspto-grants-1986_10