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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542725Generated: October 27, 2026

Hydrogen Bromide → 8-hydroxy-7-sulfamoyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromide

https://huagongshe.com/reaction/542725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant8-methoxy-7-sulfamoyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochlorideHCID 21242897—
Product8-hydroxy-7-sulfamoyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromideHCID 21242905—

Reaction Steps

8-Methoxy-7-sulfamoyl-2,3,4,5-tetrahydro-1H-3benzazepine hydrochloride (1.5 g, 0.005 m) was dissolved in 48% hydrobromic acid (15 ml), refluxed for 2 hours and concentrated in vacuo. The residue was triturated with acetone and then recrystallized from methanol to give 8-hydroxy-7-sulfamoyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromide, m.p. 315°-320° (decomp.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04659706
Source datasetuspto-grants-1987_04
ORD IDord-a8cc83ec7c75419492f25fe3d88cd7c2
Source noteuspto-grants-1987_04