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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1742777Generated: October 31, 2026

Hydrogen Bromide → HCID 178444239, compound

https://huagongshe.com/reaction/1742777

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 178444573HCID 178444573—
SolventWaterHCID 962—
ProductHCID 178444239HCID 178444239—

Reaction Steps

To a mixture of 104 g of phosphorus tribromide and 5 drops of a 48% aqueous solution of hydrogen bromide, 138 g of trans-4-pentylcyclohexanol were added dropwise under stirring while the temperature was controlled below 10° C. After the completion of the dropwise addition, the reaction mixture was reacted for one hour at the same temperature and then at room temperature for additional 1 hour. After the completion of the reaction, the reaction mixture was added with 200 ml of water, followed by extraction with diethyl ether. After the extract was washed with saturated NaCl, anhydrous sodium sulfate was added to dry the extract. The resultant mixture was filtered and the solvent was distilled off from the filtrate under reduced pressure, whereby trans-4-pentylcyclohexyl bromide was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05342546
Source datasetuspto-grants-1994_08
ORD IDord-67b9ec694ab648a58c81134ea557fb07
Source noteuspto-grants-1994_08