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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1434565Generated: October 26, 2026

Hydrochloric Acid → 1-[4-(3-Piperidin-1-yl-propoxy)-benzyl]-piperazine trihydrochloride

https://huagongshe.com/reaction/1434565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantDichloromethaneHCID 6344—
Reactant4-[4-(3-Piperidin-1-yl-propoxy)benzyl]-piperazine-1-carboxylic acid tert-butyl esterHCID 68697319—
SolventDiethyl EtherHCID 3283—
Product1-[4-(3-Piperidin-1-yl-propoxy)-benzyl]-piperazine trihydrochlorideHCID 6870349593%

Reaction Steps

To a solution of 4-[4-(3-piperidin-1-yl-propoxy)-benzyl]-piperazine-1-carboxylic acid tert-butyl ester (D1) (1.576 g, 3.76 mmol) in a (1:1) mixture of dichloromethane and methanol (20 ml) was added a 1M solution of hydrogen chloride in diethyl ether (20 ml) and the reaction stirred for 5 hours at room temperature. The solvent was then evaporated in vacuo and the resulting residue triturated with diethyl ether to afford the title compound (1.5 g, 93%); MS (ES+), m/e 318 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07615550B2
Source datasetuspto-grants-2009_11
ORD IDord-89782e4af81f488f935304c5f0478d21
Source noteuspto-grants-2009_11