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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1172768Generated: November 2, 2026

Pyridine → 4'-bromo-N-methyl-2'-nitrobenzanilide

https://huagongshe.com/reaction/1172768

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantBenzoyl chlorideHCID 7412—
Reactant4-Bromo-N-methyl-2-nitroanilineHCID 258042—
SolventEthyl AcetateHCID 8857—
Product4'-bromo-N-methyl-2'-nitrobenzanilideHCID 2309407897.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

6.8 g (29 mmol) of 4-bromo-N-methyl-2-nitroaniline were dissolved into 20 mL of pyridine. Furthermore, 5.0 g (35 mmol) of benzoyl chloride were added, and the whole was stirred under heating at 90° C. for 7 hours in an argon atmosphere. After the completion of the reaction, 200 mL of ethyl acetate were added, and the whole was washed with 10-mass % hydrochloric acid, 10-mass % K2CO3, and a saturated sodium chloride solution, and dried with magnesium sulfate. After filtration, the solvent was distilled off under reduced pressure, and the residue was purified by means of silica gel column chromatography to obtain 9.5 g of 4′-bromo-N-methyl-2′-nitro-benzanilide as a greenish white solid (96% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07833632B2
Source datasetuspto-grants-2010_11
ORD IDord-6957104583bf4b228805b5b504a65efe
Source noteuspto-grants-2010_11