Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2115881Generated: November 2, 2026

(4-Nitrophenyl)acetic acid → HCID 3522175, compound

https://huagongshe.com/reaction/2115881

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4-Nitrophenyl)acetic acidHCID 4661—
ReactantDichloromethaneHCID 6344—
ReactantThionyl ChlorideHCID 24386—
Reactant1-MethylpiperazineHCID 53167—
CatalystDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 3522175HCID 3522175—

Reaction Steps

4-Nitrophenylacetic acid (2.00 g, 0.011 mol) was dissolved in anhydrous THF (20 mL) with gradual addition of thionyl chloride (1.03 mL, 0.0143 mol) and a catalytic amount of DMF (2 drops) at RT and stirred for 24 h. On completion, the reaction was quenched in situ with N-methylpiperazine (3.85 g, 0.038 mol) added dropwise in a solution of DCM (20 mL) at RT and stirred overnight to give a beige suspension. The solvent was removed in vacuo and the residue partitioned between DCM (30 mL) and sodium hydroxide (1N, 30 mL). The organic layer was washed twice, dried over sodium sulphate and filtered. Removal of the solvent in vacuo yielded the title compound as an amber oil, 1.50 g (solidified on standing).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07435823B2
Source datasetuspto-grants-2008_10
ORD IDord-0e16581b535544c69a72ae2402c94769
Source noteuspto-grants-2008_10