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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 875145Generated: October 27, 2026

Ammonium Chloride → 4-(4-tert-Butylpiperazin-1-yl)aniline

https://huagongshe.com/reaction/875145

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant1-Tert-butyl-4-(4-nitrophenyl)piperazineHCID 57444158—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product4-(4-tert-Butylpiperazin-1-yl)anilineHCID 2427918289.6%

Reaction Steps

To a solution of 840 mg (3.189 mmol) of 1-tert-butyl-4-(4-nitrophenyl)piperazine in 24 mL of methanol, 904 mg (16.9 mmol) of ammonium chloride dissolved in 6 mL of water and 552 mg (9.886 mmol) of iron were added. After 7 hours, the suspension was cooled and filtered. pH was adjusted to 10 through portionwise addition of Na2CO3 to the aqueous phase. Extraction with dichloromethane yielded 667 mg of the title amine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08981089B2
Source datasetuspto-grants-2015_03
ORD IDord-a65a4aefd29a4937868104240a79cb80
Source noteuspto-grants-2015_03