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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1904285Generated: October 31, 2026

Hydrogen Bromide → HCID 54004170, compound

https://huagongshe.com/reaction/1904285

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 53962582HCID 53962582—
SolventEthanolHCID 702—
ProductHCID 54004170HCID 5400417053.4%

Reaction Conditions

Temperature40 °C

Reaction Steps

A mixture of 47% hydrobromic acid (3.0 g) and phosphorus tribromide (15.7 ml) was stirred at 40° C. for 3 hours, and a solution of 3-(m-phenoxyphenyl)-2-methyl-2-propenyl alcohol (9.5 g) in ethanol (20 ml) was dropwise added thereto at 10° C. The resultant mixture was aged at the same temperature for 5 hours, poured into ice-water (200 ml) and extracted with diethyl ether (100 ml×2). The ethereal layer was combined, washed with a saturated aqueous sodium chloride, dried over magnesium sulfate and concentrated under reduced pressure to give 3-(m-phenoxyphenyl)-2-methyl-propenylbromide (6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04837236
Source datasetuspto-grants-1989_06
ORD IDord-4d308dc28fc5456e98fec216166192d0
Source noteuspto-grants-1989_06