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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485975Generated: October 30, 2026

Hydrochloric Acid → HCID 178485482, compound

https://huagongshe.com/reaction/485975

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-MethylbenzenethiolHCID 7811—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178485481HCID 178485481—
CatalystHexadecyltrimethylammonium BromideHCID 5974—
SolventWaterHCID 962—
SolventO-XyleneHCID 7237—
ProductHCID 178485482HCID 178485482—

Reaction Steps

2 g (6.7 millimols) of tetrachlorophthalic acid N-methylimide, 950 mg (6.9 millimols) of potassium carbonate, 120 mg (0.33 millimol) of hexadecyltrimethylammonium bromide, 20 ml of xylene and 0.86 ml of water are stirred vigorously at 100° C. and a solution of 860 mg (6.9 millimols) of p-thiocresol in 20 ml of xylene is added dropwise over a period of 10 minutes. After 30 minutes, the mixture is cooled, acidified with 2N HCl solution and extracted with methylene chloride. After drying over sodium sulfate, evaporation and recrystallisation from toluene/cyclohexane, 310 mg (12% of theory) of the title imide are obtained; melting point 209°-16° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04537977
Source datasetuspto-grants-1985_08
ORD IDord-4b63c883653a4de3b760d4f46bbd5eb5
Source noteuspto-grants-1985_08