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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1168004Generated: November 1, 2026

Water → N-(4-bromo-2-methylphenyl)butanamide

https://huagongshe.com/reaction/1168004

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBromineHCID 24408—
ReactantN-(2-methylphenyl)butanamideHCID 221809—
SolventAcetic AcidHCID 176—
ProductN-(4-bromo-2-methylphenyl)butanamideHCID 84915798%

Reaction Steps

30 g of N-butyryl-o-toluidine and 150 g of glacial acetic acid were initially charged at 30° C. A solution of 33 g of bromine in 66 g of glacial acetic acid was added with stirring and then stirring was continued at from 25 to 30° C. for 1 hour. 300 ml of water were then added to the reaction mixture which, after continued stirring for a short time, was filtered, the crystals were washed with water and dried under reduced pressure. 42.5 g (98% yield) of N-(4-bromo-2-methylphenyl)butanamide were obtained in 99.4% purity.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06620962B2
Source datasetuspto-grants-2003_09
ORD IDord-cb27b065bf404f3fb13abd026073b5c2
Source noteuspto-grants-2003_09