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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1265984Generated: November 1, 2026

Hydrochloric Acid → 1,1,2-Tribromo-2-(2-hydroxyethyl)cyclopropane

https://huagongshe.com/reaction/1265984

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
Reactant1,1,2-Tribromo-2-[2-(1-ethoxy-ethoxy)ethyl]-cyclopropaneHCID 18548194—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product1,1,2-Tribromo-2-(2-hydroxyethyl)cyclopropaneHCID 1854820888.2%

Reaction Steps

To a slurry of 16.5 g (0.0418 mol) of 1,1,2-tribromo-2-[2-(1-ethoxy-ethoxy)-ethyl]-cyclopropane in 145 ml methanol and 40 ml water, was added 0.306 g (0.00161 mol) p-toluene sulfonic acid monohydrate and 145 ml 6M hydrochloric acid. After stirring at room temperature for 1 hour, the solvent was removed from the reaction mixture in vacuo. To the residue, there was added ethyl acetate and water. The resulting mixture was transferred to a separatory funnel and the phases were separated. The isolated organic layer was washed with brine then dried over MgSO4 and filtered. The solvent was removed from the filtrate in vacuo to yield 11.9 g of 1,1,2-tribromo-2-(2-hydroxyethyl)cyclopropane as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06548448B2
Source datasetuspto-grants-2003_04
ORD IDord-de6cfb93a6d846e8bd7627cee35c3a8d
Source noteuspto-grants-2003_04