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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2108369Generated: October 31, 2026

Hydrochloric Acid → HCID 11431024, compound

https://huagongshe.com/reaction/2108369

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
Reactant1-Propanesulfonyl chlorideHCID 66279—
Reactant[4-(6-Aminopyridazin-3-yl)piperazin-1-yl](2-trifluoromethylphenyl)methanoneHCID 66849536—
SolventDichloromethaneHCID 6344—
ProductHCID 11431024HCID 1143102435.5%

Reaction Steps

To a mixture of [4-(6-amino pyridazin-3-yl)piperazin-1-yl]-(2-trifluoromethylphenyl)methanone (0.10 g, 0.285 mmol) and triethyl amine (0.037 g, 0.371 mmol) in 10 mL of dichloromethane at 0° C. was added n-propylsulphonyl chloride (0.044 g, 0.313 mmol). The reaction mixture was stirred at room temperature for 4 hours and then dilute hydrochloric acid solution was added (20 mL). The mixture was extracted with dichloromethane. The organic layer was washed with brine, dried over anhydrous sodium sulphate, the concentrated in vacuo. The residue was purified by column chromatography to yield the title compound as a white solid (46.3 mg, 35.5% yield). 1H NMR (400 MHz, CDCl3) δ 7.75, 7.63-7.66, 7.56-7.59, 7.37, 7.25, 6.99, 4.04-4.07, 3.85-3.89, 3.71-3.78, 3.35, 1.96-2.00, 1.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07514436B2
Source datasetuspto-grants-2009_04
ORD IDord-71d2993f68b74d0896f8337256bda1ec
Source noteuspto-grants-2009_04