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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860449Generated: October 31, 2026

Hydrochloric Acid → HCID 18623808, compound

https://huagongshe.com/reaction/1860449

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 10738521HCID 10738521—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 18623808HCID 1862380868.6%

Reaction Conditions

Temperature40 °C

Reaction Steps

2.44 g (6.43 mmol) of 1,4-dibenzyl-2-tert-butylcarbonylaminomethylpiperazine are dissolved in 50 ml of ethanol and 1 ml of 12N HCl in a 100-ml ground-necked round-bottomed flask. About 100 mg of palladium (10%) on charcoal are added thereto. The mixture is then placed under a hydrogen atmosphere, stirred vigorously and heated gently (40° C.) for 3 hours. The suspension is filtered on paper and the catalyst is rinsed several times with ethanol and water. The solvents are evaporated off to give 1.2 g of 2-tert-butylcarbonylaminomethylpiperazine hydrochloride. Yield: 68.6%. Melting point: 278.6° C. Rf=0.13 (80/20/[lacuna] v/v/v CHCl3/MeOH/NH4)OH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06531476B1
Source datasetuspto-grants-2003_03
ORD IDord-79afc747af7d4b6dbc11758fa7a824af
Source noteuspto-grants-2003_03