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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2049877Generated: November 1, 2026

Hydrogen Bromide → HCID 70594250, compound

https://huagongshe.com/reaction/2049877

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPotassium IodideHCID 4875—
ReactantPhenethyl bromideHCID 7666—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 20343975HCID 20343975—
ReactantHCID 20343976HCID 20343976—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
ProductHCID 70594250HCID 70594250—

Reaction Steps

A mixture of 0.67 g of 4-ethoxycarbonyl-4-(2-phenylthiophenyl)piperidine, free base of Example 17, 0.48 g of 2-bromoethylbenzene, 0.65 g of sodium bicarbonate and 0.65 g of potassium iodide in 15 ml of dimethylformamide is stirred at 60°-70° C. for 16 hours. Thereafter, the mixture is diluted with ether and the diluted mixture is filtered. The filtrate is concentrated in vacuo. The residue is purified by column chromatography (alumina column, ether eluant) to provide a purified product which, in ether, is converted to its hydrobromic acid salt. The salt is recrystallized from an acetone-ether mixture to provide 4-ethoxycarbonyl-1-phenylethyl-4-(2-phenylthiophenyl)piperidine hydrobromide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04198419
Source datasetuspto-grants-1980_04
ORD IDord-15c26c9bfc9f4dac9f4a141312410256
Source noteuspto-grants-1980_04