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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 29819Generated: October 25, 2026

Acetic Anhydride → N-(3-Bromo-4-methylphenyl)acetamide

https://huagongshe.com/reaction/29819

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantBenzenamine, 3-bromo-4-methyl-HCID 82187—
SolventDichloromethaneHCID 6344—
ProductN-(3-Bromo-4-methylphenyl)acetamideHCID 1170841399.6%

Reaction Steps

To a solution of 3-bromo-4-methylaniline (1.27 g, 6.82 mmol) in DCM (20 mL) at (0° C. is added acetic anhydride (0.676 mL, 7.16 mmol) dropwise. After 30 minutes, the mixture is partitioned between DCM and saturated sodium carbonate solution. The layer is separated and the aqueous layer is extracted with DCM. The combined organic extracts are washed with brine, dried over Na2SO4, filtered and concentrated to afford the title compound (1.55 g, 99%). The residue is used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07423038B2
Source datasetuspto-grants-2008_09
ORD IDord-b205cd67cc5f4963b841b1479888a34a
Source noteuspto-grants-2008_09