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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 248585Generated: October 26, 2026

1,2,4-Trichlorobenzene → 2,5-Dichlorobenzenethiol

https://huagongshe.com/reaction/248585

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2,4-TrichlorobenzeneHCID 13—
ReactantSodium hydrosulfideHCID 28015—
CatalystCupric acetateHCID 8895—
SolventAmmoniaHCID 222—
Product2,5-DichlorobenzenethiolHCID 79965—

Reaction Steps

the method in which 1,2,4-trichlorobenzene and sodium hydrosulfide are reacted in the presence of copper acetate catalyst in liquid ammonia solvent under increased pressure to yield 2,5-dichlorothiophenol, followed by reaction with monochloroacetic acid to yield 2,5-dichlorophenylthioglycolic acid [Kogyo Kagaku, 70, 1384 (1967)].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05210287
Source datasetuspto-grants-1993_05
ORD IDord-5f609b4e76bc4b5bad749a0f11953275
Source noteuspto-grants-1993_05