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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 248499Generated: October 25, 2026

Hydrochloric Acid → Acetophenone, 2',4'-dichloro-5'-fluoro-

https://huagongshe.com/reaction/248499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetic AnhydrideHCID 7918—
ReactantBenzene, 2,4-dichloro-1-fluoro-HCID 123112—
ReactantAluminum(III) ChlorideHCID 6451240—
ProductAcetophenone, 2',4'-dichloro-5'-fluoro-HCID 727250—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 229.6 g of 1,3-dichloro-4-fluorobenzene and 205.34 g of aluminum chloride was heated at 80° C. A 56 g portion of acetic anhydride was added dropwise over 2 hours, then the reaction ws heated at 100° C. for 8 hours, poured onto a mixture of concentrated hydrochloric acid and ice and extracted several times with ether. The ether extracts were combined, washed with water, dried and the solvents evaporated. The solid was purified by vacuum distillation, giving 156.63 g of 6-acetyl-1,3-dichloro-4-fluorobenzene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05210193
Source datasetuspto-grants-1993_05
ORD IDord-37d187f7d13144d49ee81d90538374b3
Source noteuspto-grants-1993_05