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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1803864Generated: November 1, 2026

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

https://huagongshe.com/reaction/1803864

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 numberUS08354399B2
Source datasetuspto-grants-2013_01
ORD IDord-263eaac0ffa34fa7b98dca6568f71021
Source noteuspto-grants-2013_01