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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 357225Generated: October 25, 2026

Hydrochloric Acid → 2(5H)-Furanone, 3-(4-fluorophenyl)-4-[4-(methylsulfonyl)phenyl]-

https://huagongshe.com/reaction/357225

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-(4-Fluorophenyl)acetic acidHCID 9837—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant2-Bromo-4'-(methylsulfonyl)acetophenoneHCID 735823—
SolventAcetonitrileHCID 6342—
SolventTriethylamineHCID 8471—
Product2(5H)-Furanone, 3-(4-fluorophenyl)-4-[4-(methylsulfonyl)phenyl]-HCID 1083039468.2%

Reaction Steps

To the product of Step 1 (216 mg) dissolved in acetonitrile (4 mL) was added Et3N (0.26 mL), followed by 4-fluorophenylacetic acid (102 mg). After 1.5 h at room temperature 0.23 mL of DBU was added. The reaction mixture was stirred for another 45 min and then treated with 5 mL of 1N HCl. The product was extracted with EtOAc, dried over Na2 SO4 and concentrated. The residue was purified by flash chromatography (40% EtOAc in hexane) to yield 150 mg of the title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05840746
Source datasetuspto-grants-1998_11
ORD IDord-9c1fef887e114a61b1c67230af1344c0
Source noteuspto-grants-1998_11