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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2104236Generated: October 30, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/2104236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 68503586HCID 68503586—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
ProductHydrochloric AcidHCID 313—
Product4-(4-Chloro-3-methoxyphenyl)-4-piperidinolHCID 57805555—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 4-(4-Chloro-3-methoxy-phenyl)-4-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (502 mg) in MeOH (5 mL) was added a solution of HCl in ether (2 M, 9.5 mL). The resultant mixture was stirred at room temperature for 1 h followed by the addition of ether (50 mL). The reaction mixture was stirred at 0° C. for an additional 30 min, then filtered and concentrated to provide 4-(4-Chloro-3-methoxy-phenyl)-piperidin-4-ol in the form of HCl salt as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07576218B2
Source datasetuspto-grants-2009_08
ORD IDord-5ea57e5f3c1247d9b2bf90bbbaeb9ff1
Source noteuspto-grants-2009_08