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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 964438Generated: October 31, 2026

Potassium Carbonate → HCID 86752380, compound

https://huagongshe.com/reaction/964438

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 5-bromovalerateHCID 79557—
ReactantPiperazin-4-ylacetophenoneHCID 97269—
ReactantDichloromethane methanolHCID 21226129—
SolventDimethylformamideHCID 6228—
ProductHCID 86752380HCID 86752380—

Reaction Steps

4'-Piperazinoacetophenone (102 mg) is dissolved in 1 mL of N,N-dimethylformamide. After addition of methyl 5-bromovalerate (0.077 mL) and potassium carbonate (69 mg), the mixture is stirred at room temperature for 65 hours. TLC (10% MeOH/CH2Cl2) should show a single product spot without residual starting material. The reaction solution is evaporated under vacuum. The residue is taken up in methylene chloride, washed twice with water and dried over sodium sulfate. Evaporation of the solvent yields 137 mg of 4-(4-acetylphenyl)-1-piperazinevaleric acid, methyl ester as yellow crystals whose 1H-NMR (CDCl3) spectrum is consistent with the assigned structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05767285
Source datasetuspto-grants-1998_06
ORD IDord-f2d2b7d5e966437bb4f0d72d711e81c3
Source noteuspto-grants-1998_06