Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1598866Generated: November 1, 2026

Potassium Carbonate → HCID 86752380, compound

https://huagongshe.com/reaction/1598866

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 numberUS05739116
Source datasetuspto-grants-1998_04
ORD IDord-9328c521cce9438aad9e20d96f1af2a0
Source noteuspto-grants-1998_04