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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1186632Generated: October 25, 2026

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

https://huagongshe.com/reaction/1186632

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 numberUS08673893B2
Source datasetuspto-grants-2014_03
ORD IDord-4520751d330b4f69963a0ab915a824e1
Source noteuspto-grants-2014_03