Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2352318Generated: November 1, 2026

Hydrogen Bromide → HCID 67823332, compound

https://huagongshe.com/reaction/2352318

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantEthanolHCID 702—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 13900439HCID 13900439—
ProductHCID 67823332HCID 6782333270%

Reaction Steps

cis-7-Methoxy-1-methyl-2-(n-propylamino) tetralin hydrochloride (100 mg, 0.37 mmol) was heated in 48% aqueous HBr for 3 h at 120° C. under N2. The volatiles were evaporated from the faint pink solution and the residue was treated twice with ethanol followed by evaporation, giving a faint pink residue which was dissolved in abs. ethanol. Dry abs. ethyl ether was added to the solution, yielding white crystals which were then recrystallized from MeOH-ethyl ether, yielding the desired product (75 mg, 70% yield), m.p. 262°-263° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04876284
Source datasetuspto-grants-1989_10
ORD IDord-ee35158117cd4df785449615576f1f99
Source noteuspto-grants-1989_10