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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 349662Generated: October 31, 2026

Piperidine → 2-Nitro-5-piperidinoaniline

https://huagongshe.com/reaction/349662

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantPotassium CarbonateHCID 11430—
Reactant5-Chloro-2-nitroanilineHCID 74218—
SolventDimethylformamideHCID 6228—
Product2-Nitro-5-piperidinoanilineHCID 706224622%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 5-chloro-2-nitrophenylamine (5 g, 29 mmol), piperidine (2.9 mL, 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 (1.4 g, 22%). See, Aust. J. Chem., 47:247–262 (1994).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07179912B2
Source datasetuspto-grants-2007_02
ORD IDord-7254f2fd16c843e4aa9bb7947f0f2514
Source noteuspto-grants-2007_02