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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 917646Generated: October 31, 2026

Tyrosol → HCID 4324878, compound

https://huagongshe.com/reaction/917646

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTyrosolHCID 10393—
ReactantBromineHCID 24408—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 4324878HCID 4324878—

Reaction Steps

To a solution of 4-(2-hydroxyethyl)phenol 9.50 g in acetic acid 60 ml is dropped bromine 3.54 ml over a period of 10 minutes on a water bath, and the mixture is stirred for 15 minutes. The reaction mixture is diluted with water and extracted with ethyl acetate. The ethyl acetate layer is washed, dried and concentrated in vacuo. The residue is dissolved in methanol 120 ml and thereto is added potassium carbonate 25 g. The mixture is stirred at room temperature for 5 hours. and then diluted with water and with ethyl acetate. The solution is acidified with concentrated sulfuric acid. The organic layer is extracted with ethyl acetate, washed, dried and concentrated in vacuo. The residue is crystallized from chloroform to give 2-bromo-4-(2-hydroxyethyl)phenol as a slightly brown crystalline powder 9.37 g. mp 83-85° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07273868B2
Source datasetuspto-grants-2007_09
ORD IDord-32bc962136574521aa245c0f6c0e09d1
Source noteuspto-grants-2007_09