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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1588980Generated: November 2, 2026

Hydrochloric Acid → 2-Piperazinecarboxylic acid,4-phenyl-1-(phenylmethyl)-

https://huagongshe.com/reaction/1588980

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantPotassium HydroxideHCID 14797—
Reactant1-Benzyl-4-phenyl-piperazine-2-carboxamideHCID 10990097—
SolventEthylene GlycolHCID 174—
Product2-Piperazinecarboxylic acid,4-phenyl-1-(phenylmethyl)-HCID 14998801—

Reaction Conditions

Temperature150 °C

Reaction Steps

Suspend 4-phenyl-1-(phenylmethyl)-2-piperazinecarboxamide (14.5 g, 49 mmol) in ethylene glycol (400 mL) and add potassium hydroxide (27.5 g, 490 mmol). Heat this mixture to 150° C. for 18 h. After this time, remove the solvent in vacuo. Add 6M hydrochloric acid (81.5 mL, 0.49 mol) and water (300 mL) and filter the resultant solid to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05223623
Source datasetuspto-grants-1993_06
ORD IDord-6a44282423354bc5be620a297419ab21
Source noteuspto-grants-1993_06