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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1899860Generated: November 2, 2026

Acetic Anhydride → 22012-59-5

https://huagongshe.com/reaction/1899860

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant4-Bromo-m-cresolHCID 72857—
SolventSodium HydroxideHCID 14798—
Product22012-59-5HCID 14572341—

Reaction Steps

A stirred mixture of 4-bromo-3-methylphenol (184.1 g) and aqueous NaOH (850 ml, 2M) at 20° C. is treated with acetic anhydride (136 ml) and stirred at room temperature for 1 h. The suspension is extracted with diethyl ether (3×300 ml) and the combined extracts are washed with aqueous NaOH (2×100 ml 2M), dried (Na2SO4) and filtered. The solvent is evaporated off under reduced pressure to yield the title compound as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05574049
Source datasetuspto-grants-1996_11
ORD IDord-1c8bb0ab62ec48009c32ab6278473a1d
Source noteuspto-grants-1996_11