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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2300679Generated: October 31, 2026

Hydrochloric Acid → HCID 54555785, compound

https://huagongshe.com/reaction/2300679

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-MethylbenzenethiolHCID 7811—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Chloro-4-(4-chlorophenyl)-5-oxazolepropionic acidHCID 11808258—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 54555785HCID 5455578593%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2-chloro-4-(4-chlorophenyl)-5-oxazolepropionic acid (1.43 g), 4-methylthiophenol (0.68 g), potassium carbonate (2.07 g) and N,N-dimethylformamide (20 ml) was stirred under a nitrogen atmosphere at 100° C. for 40 minutes. Water was added to the reaction mixture, which was then acidified with 2 N hydrochloric acid. The crystals thus precipitated were collected by filtration to obtain 4-(4-chlorophenyl)-2-(4-methylphenylthio)-5-oxazolepropionic acid (1.73 g, 93%). This was recrystallized from ethanol to give colorless needles. mp 160-161° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06498179B1
Source datasetuspto-grants-2002_12
ORD IDord-ed1b5f6bd2754bb78a514eb676379b16
Source noteuspto-grants-2002_12