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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 258886Generated: October 31, 2026

Hydrochloric Acid → HCID 21425053, compound

https://huagongshe.com/reaction/258886

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantButanoic acid, 4-chloro-4-oxo-, methyl esterHCID 73888—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 10965101HCID 10965101—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 21425053HCID 21425053—

Reaction Steps

To a stirring mixture of 62 g (0.50 mole) of AlCl3 in 375 ml of 1,2-dichloroethane was added portionwise 75 g (0.5 mole) of 3-carbomethoxypropionyl chloride while keeping the temperature below 25° by means of an ice bath. The reaction mixture was cooled to 15° and a solution of 89 g (0.5 mole) of 5-(4-chlorophenyl)furan in 250 ml of 1,2-dichloroethane was added dropwise with HCl gas being evolved and the temperature rising to 30°. The reaction mixture was stirred at ambient temperature for 1 hour and then added to 1000 ml of ice/water. The organic layer was separated and the aqueous layer extracted with dichloromethane. The combined organic layers were washed with 1000 ml of 6% sodium carbonate solution with 1000 ml of water and dried over MgSO4. The solvent was removed on a Calab evaporator yielding a residual oil which was extracted several times with refluxing hexane. The hexane extracts were cooled to yield a solid which was filtered, washed twice with 6% sodium carbonate solution, recrystallized from hexane and air dried to yield 7 g (5%). An analytical sample was prepared by drying a sample in a vacuum pistol at room temperature, m.p. 99°-100°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04035394
Source datasetuspto-grants-1977_07
ORD IDord-0b611653feb542e18778802b9b2e3c78
Source noteuspto-grants-1977_07