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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1872682Generated: November 2, 2026

Pyridine → HCID 21184178, compound

https://huagongshe.com/reaction/1872682

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 21184167HCID 21184167—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 21184178HCID 2118417882.7%

Reaction Steps

To a solution of 3-[4-(3-aminophenyl)-2,6-dimethylphenoxymethyl]-1-methylpiperidine (513 mg, 1.58 mmol) in dichloromethane at 0° C. was added pyridine (1.3 mL, 16 mmol) and acetic anhydride (0.75 mL, 8.0 mmol). The mixture was stirred overnight at a temperature range from 0° C. to room temperature, and diluted with water and ethyl acetate. The aqueous layer was extracted with dichloromethane (3×), and the organic layers were dried and concentrated. The residue was purified on silica gel, eluting with 10% methanol/dichloromethane containing 0.5% ammonium hydroxide, to give 3-[4-(3-acetylaminophenyl)-2,6-dimethylphenoxymethyl]-1-methylpiperidine (479 mg, 82%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06110937
Source datasetuspto-grants-2000_08
ORD IDord-899736121ef04929b04287a27eb49bf6
Source noteuspto-grants-2000_08