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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 964439Generated: October 29, 2026

Hydrochloric Acid → HCID 54515007, compound

https://huagongshe.com/reaction/964439

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDichloromethane methanolHCID 21226129—
ReactantHCID 86752380HCID 86752380—
SolventPotassium HydroxideHCID 14797—
ProductHCID 54515007HCID 5451500747.9%

Reaction Conditions

Temperature100 °C

Reaction Steps

4-(4-Acetylphenyl)-1-piperazinevaleric acid, methyl ester (15.3 mg) is suspended in 0.1 mL of potassium hydroxide solution (33.2 mg/mL). After heating at 100° C. for 150 min, the starting material is completely dissolved and absent by TLC (10% MeOH/CH2Cl2). After acidifying the reaction solution to pH 4 by adding 0.2N HCl, the aqueous solution is extracted with methylene chloride. After evaporation of the organic layer to dryness, the residue is dissolved in methylene chloride and filtered. Evaporation of the organic layer gives 7 mg of 4-(4-acetylphenyl)-1-piperazinevaleric acid as a white solid. 1H-NMR (CDCl3) spectrum is consistant with the assigned structure. MS (FAB) m/e 305 (M+ +H), 327 (M+ +Na), 348 (M+ +2Na--H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05767285
Source datasetuspto-grants-1998_06
ORD IDord-21d010c3f05d4343809b3e7f5be5d83c
Source noteuspto-grants-1998_06