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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884412Generated: October 31, 2026

Potassium Carbonate → 1-Acetyl-4-(3-amino-4-nitrophenyl)piperazine

https://huagongshe.com/reaction/884412

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-Chloro-2-nitroanilineHCID 74218—
Reactant1-AcetylpiperazineHCID 83795—
SolventDimethylformamideHCID 6228—
Product1-Acetyl-4-(3-amino-4-nitrophenyl)piperazineHCID 3116829—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 5-chloro-2-nitrophenylamine (5 g, 29 mmol), 1-acetylpiperazine (29 mmol), and K2CO3 (4.0 g, 29 mmol) in DMF (20 mL) was stirred at 120° C. for 4 h. The reaction mixture was cooled to room temperature and poured into ice cold water (100 mL). The crude solid product was collected by filtration, air dried, and purified by flash chromatography (silica gel, 4×15 cm, eluted with CHCl3) to yield the product as orange crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08242115B2
Source datasetuspto-grants-2012_08
ORD IDord-37d9a1a0b76e4c50982749e511992011
Source noteuspto-grants-2012_08