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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 267503Generated: November 3, 2026

1-Bromo-2-Chloroethane → 1-Chloro-2-[4-(4-methylphenylsulfonyl)piperazin-1-yl]ethane

https://huagongshe.com/reaction/267503

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-ChloroethaneHCID 7849—
ReactantTriethylamineHCID 8471—
Reactant1-(Toluene-2-sulfonyl)-piperazineHCID 54406424—
SolventBenzeneHCID 241—
Product1-Chloro-2-[4-(4-methylphenylsulfonyl)piperazin-1-yl]ethaneHCID 474193280.6%

Reaction Steps

After refluxing for 72 hours a reaction mixture consisting of 60 g (0.25 mol) of p-toluenesulfonylpiperazine (III), 41 ml (0.5 mol) of 1-bromo-2-chloroethane and 35 ml (0.25 mol) of triethylamine in 1 liter of benzene, the solution was filtered and white needle crystal were obtained from the filtrate. N-β-chloroethyl-N'-p-toluenesulfonylpiperazine 61 g (yield: 79%) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03943135
Source datasetuspto-grants-1976_03
ORD IDord-040e2e44b322400a9687cec7c04160e8
Source noteuspto-grants-1976_03