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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 845307Generated: October 30, 2026

Sulfuric Acid → HCID 14303549, compound

https://huagongshe.com/reaction/845307

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantTolueneHCID 1140—
Reactant2-Propynoic acid, 3-phenyl-, ethyl esterHCID 91516—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 14500009HCID 14500009—
ProductHCID 14303549HCID 14303549—

Reaction Conditions

Temperature60 °C

Reaction Steps

Added to 700 ml of toluene were 73.1 g (0.30 mole) of N-(2-chlorophenyl)-1-phenylpropaneimine, 34.8 g (0.20 mole) of ethyl phenylpropiolate and 40.0 g (0.30 mole) of aluminum chloride. The reaction mixture was then heated with stirring at 60° C. for 3 days. After cooling, the reaction mixture was poured into 1000 ml of 2N sulfuric acid, followed by extraction withchloroform. After washing the organic layer with water, the organic layer was dried over anhydrous magnesium sulfate. The solvent was distilled off and the residue was purified by chromatography on a silica gel column (eluent: ethyl acetate). The crystals obtained were then recrystallized from a 1:2 mixed solvent of chloroform and hexane to give 17.0 of 1-(2-chlorophenyl)-3-methyl-2,6-diphenyl-4(1H)-pyridinone.1/5HCl having a melting point of 229°-231° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04757081
Source datasetuspto-grants-1988_07
ORD IDord-6aece3ee947347f38f3cff5562ecfe67
Source noteuspto-grants-1988_07