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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1401973Generated: October 30, 2026

Hydrogen Bromide → HCID 66905881, compound

https://huagongshe.com/reaction/1401973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant4-(5-Chloro-2-methoxyphenyl)piperidineHCID 49760816—
ProductHCID 66905881HCID 6690588197%

Reaction Steps

To 4-(5-chloro-2-methoxyphenyl)piperidine (Preparation 233, 40 g, 0.177 mol) was added hydrogen bromide (48% in water, 100 ml) and refluxed for 24 hours before concentrating in vacuo. 1,4-Dioxane was added and solution concentrated in vacuo. The resulting crystals were washed with diethyl ether and dried in vacuo to give the title compound as white crystals, 53 g, 97% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08907101B2
Source datasetuspto-grants-2014_12
ORD IDord-7ef3e885c5d245d2ae4b5deef1a35e23
Source noteuspto-grants-2014_12