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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 53228Generated: October 29, 2026

Hydrogen Bromide → 1-[4-(3-Trifluoromethylphenyl)-1,2,3,6-tetrahydropyrid-1-yl]-2-(6-hydroxy-naphth-2-yl)ethane hydrobromide

https://huagongshe.com/reaction/53228

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant1-[4-(3-Trifluoromethylphenyl)-1,2,3,6-tetrahydropyrid-1-yl]-2-(6-methoxy-naphth-2-yl)ethane hydrochlorideHCID 19962086—
SolventAcetic AcidHCID 176—
Product1-[4-(3-Trifluoromethylphenyl)-1,2,3,6-tetrahydropyrid-1-yl]-2-(6-hydroxy-naphth-2-yl)ethane hydrobromideHCID 19962090—

Reaction Steps

A mixture of 1-[4-(3-trifluoromethylphenyl)-1,2,3,6-tetrahydropyrid-1-yl]-2-(6-methoxy-naphth-2-yl)ethane hydrochloride (0.6 g, 0.0013 mol) (obtained as described in Example 3) and 33% HBr in acetic acid (20 ml) is refluxed for 4 hours. The precipitate which forms is recovered by filtration and crystallised from 95% ethanol affording the compound indicated in the title (0.3 g) with m.p. 210°-212° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05618822
Source datasetuspto-grants-1997_04
ORD IDord-f96e490cd1fa47ef9c0d69ddfff8c1fd
Source noteuspto-grants-1997_04