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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15648Generated: October 26, 2026

Acetic Anhydride → 4-Bromo-3,5-dimethylphenyl acetate

https://huagongshe.com/reaction/15648

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant4-Bromo-3,5-dimethylphenolHCID 81970—
SolventHydrochloric AcidHCID 313—
SolventPyridineHCID 1049—
Product4-Bromo-3,5-dimethylphenyl acetateHCID 15184685128.9%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 4-bromo-3,5-dimethylphenol (10.1 g, 50.0 mmol) in pyridine (13 mL) was added acetic anhydride (7.66 g, 38.6 mmol), and the mixture was stirred at 50° C. for 30 min. The reaction mixture was ice-cooled, diluted with 0.5 M hydrochloric acid, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to give the title compound (12.1 g, yield 99%) as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732626B2
Source datasetuspto-grants-2010_06
ORD IDord-c62a1446a0cf4c86baf2176395751b80
Source noteuspto-grants-2010_06