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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54672Generated: October 29, 2026

Hydrogen Bromide → 4-(3,4-Dihydroxyphenyl)-6-methyl-1,2,3,4-tetrahydroisoquinoline hydrobromide

https://huagongshe.com/reaction/54672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant4-(3,4-Dimethoxyphenyl)-6-methyl-1,2,3,4-tetrahydroisoquinolineHCID 10684399—
Product4-(3,4-Dihydroxyphenyl)-6-methyl-1,2,3,4-tetrahydroisoquinoline hydrobromideHCID 14719551—

Reaction Steps

To 450 mg of 4-(3,4-dimethoxyphenyl)-6-methyl-1,2,3,4-tetrahydroisoquinoline, was added 9 ml of 48% hydrobromic acid, and the mixture was heated under reflux under an argon gas stream for 3 hours. The reaction solution was cooled, and the crystals which separated out were collected by filtration, giving 390 mg of 4-(3,4-dihydroxyphenyl)-6-methyl-1,2,3,4-tetrahydroisoquinoline hydrobromide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05623074
Source datasetuspto-grants-1997_04
ORD IDord-75db2f0a736f487c9bf1e079b38a6608
Source noteuspto-grants-1997_04