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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1868011Generated: November 3, 2026

Diisopropylethylamine → HCID 68551859, compound

https://huagongshe.com/reaction/1868011

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant4-t-Butylbenzenesulfonyl chlorideHCID 139882—
Reactant1-(3-Chloropyridin-2-yl)piperazineHCID 11412944—
SolventDichloromethaneHCID 6344—
ProductHCID 68551859HCID 6855185959.3%

Reaction Steps

To a stirred solution of 1-(3-chloropyridin-2-yl)piperazine (316 mg, 1.6 mmol) in anhydrous dichloromethane (5 mL) was added diisopropylethylamine (0.975 mL, 5.6 mmol) then 4-tert-butylbenzene-1-sulfonyl chloride (372.4 mg, 1.6 mmol). The mixture was stirred at room temperature for 1.5 hour. Reaction was complete as determined by TLC. The reaction mixture was purified with flash column chromatography to yield 1-[(4-tert-butylphenyl)sulfonyl]-4-(3-chloropyridin-2-yl)piperazine in 59.3% yield (374 mg) as white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07632838B2
Source datasetuspto-grants-2009_12
ORD IDord-6df2d929aeb0422f91775552ab973d03
Source noteuspto-grants-2009_12