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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1908891Generated: October 28, 2026

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

https://huagongshe.com/reaction/1908891

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 numberUS08598226B2
Source datasetuspto-grants-2013_12
ORD IDord-35961e34bc074a119ca2481f005e0fad
Source noteuspto-grants-2013_12