Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 616040Generated: November 1, 2026

Hydrogen Bromide → 4-[1-(Propan-2-yl)piperidin-3-yl]benzene-1,2-diol--hydrogen bromide (1/1)

https://huagongshe.com/reaction/616040

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant3-(3,4-Dimethoxyphenyl)-1-(propan-2-yl)piperidineHCID 20370842—
Product4-[1-(Propan-2-yl)piperidin-3-yl]benzene-1,2-diol--hydrogen bromide (1/1)HCID 3046379—

Reaction Steps

A solution of 4.8 g of N-isopropyl-3-(3',4'-dimethoxyphenyl)-piperidine in 48 ml of 66% hydrobromic acid was refluxed for an hour and was evaporated to dryness. The residue was crystallized from isopropanol and then acetone to obtain 4.2 g of N-isopropyl-3-(3',4'-dihydroxyphenyl)-piperidine hydrobromide melting at 182° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04072685
Source datasetuspto-grants-1978_02
ORD IDord-65e57121b47546a7a007fc5c376bc569
Source noteuspto-grants-1978_02