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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1579623Generated: November 3, 2026

Hydrochloric Acid → HCID 21568949, compound

https://huagongshe.com/reaction/1579623

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsovaleryl chlorideHCID 66054—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 12741931HCID 12741931—
SolventDichloromethaneHCID 6344—
ProductHCID 21568949HCID 21568949—

Reaction Conditions

Temperature25 °C

Reaction Steps

To a stirred solution of 6,7-dimethylbenzofuran-2-carboxylic acid (9 g.) and isovaleryl chloride (7.5 g.) in dichloromethane (100 ml.) at 5°C. is added aluminum trichloride (20 g.) in portions over a 1 hour period. The reaction mixture is stirred at 25°C. for 18 hours, poured into a mixture of ice (300 g.) and hydrochloric acid (50 ml.) to afford 5-isovaleryl-6,7-dimethylbenzofuran-2-carboxylic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03931239
Source datasetuspto-grants-1976_01
ORD IDord-41e9bf746b9446f5966fc0ded72a2cc3
Source noteuspto-grants-1976_01