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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1773429Generated: November 2, 2026

Potassium Carbonate → Methyl 2-methoxy-4-(4-methylpiperazin-1-yl)benzoate

https://huagongshe.com/reaction/1773429

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-MethylpiperazineHCID 53167—
ReactantMethyl 4-fluoro-2-methoxybenzoateHCID 10241478—
SolventDimethyl SulfoxideHCID 679—
SolventDichloromethaneHCID 6344—
ProductMethyl 2-methoxy-4-(4-methylpiperazin-1-yl)benzoateHCID 6699625366.3%

Reaction Steps

Methyl 2-methoxy-4-fluoro-benzoate (1.6 gr, 9.7 mmol), K2CO3 (1.3 gr, 9.7 mmol) and N-methyl piperazine (1.3 mL, 11.7 mmol) were heated at 100° C. in DMSO (5 mL) for 20 hours. Reaction mixture was diluted with DCM and washed with water. Organic phase was dried over sodium sulfate and evaporated to dryness. Column chromatography purification on silica gel using dichloromethane/methanol 95:5 as the eluant, afforded 1.7 g (yield 66%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09255087B2
Source datasetuspto-grants-2016_02
ORD IDord-c3ba68fc943e4f788c218c5ff4a73f5d
Source noteuspto-grants-2016_02