Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1807794Generated: November 1, 2026

Hydrochloric Acid → 1-(3-(4-(4-(1,1,1,3,3,3-Hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazine-1-carbonyl)phenyl)-3-(pyridin-4-yl)urea

https://huagongshe.com/reaction/1807794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsopropanolHCID 3776—
Reactant(4-(4-(1,1,1,3,3,3-Hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazin-1-yl)(3-nitrophenyl)methanoneHCID 86638578—
CatalystIronHCID 23925—
SolventDichloromethaneHCID 6344—
SolventPotassiumHCID 5462222—
Product1-(3-(4-(4-(1,1,1,3,3,3-Hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazine-1-carbonyl)phenyl)-3-(pyridin-4-yl)ureaHCID 59175903—

Reaction Steps

To a stirred suspension of (4-(4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazin-1-yl)(3-nitrophenyl)methanone (1.730 mmol, 850 mg) and iron powder (17.30 mmol, 966 mg) in 2-propanol was added a small volume of hydrochloric acid (37%). The reaction was refluxed for 1 hour then was allowed to cool to room temperature. The reaction was diluted with dichloromethane and solid potassium carbonated was added. The reaction was stirred for 1 hour then was filtered through celite washing with dichloromethane. The filtrate was concentrated under reduced pressure. The crude material was chromatographed on silica eluting with ethyl acetate to give the title compound (440 mg). MS (ESI) m/z 462.2 [M+H]+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08357679B2
Source datasetuspto-grants-2013_01
ORD IDord-40812a623e1f43b4b68a33fc6127b29c
Source noteuspto-grants-2013_01