Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252388Generated: October 27, 2026

Pyridine → Benzamide, N-(5-chloro-2-hydroxy-4-nitrophenyl)-

https://huagongshe.com/reaction/1252388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantBenzoyl chlorideHCID 7412—
Reactant2-Amino-4-chloro-5-nitrophenolHCID 3894848—
ProductBenzamide, N-(5-chloro-2-hydroxy-4-nitrophenyl)-HCID 548322889%

Reaction Steps

188 (1 mole) g of 2-amino-4-chloro-5-nitrophenol and 79 g (1 mole) of pyridine were added to 500 ml of N-dimethylacetamide, followed by dropping 140 g (1 mole) of benzoyl chloride at about 5° C. in about 30 minutes and agitating for further 30 minutes. The resulting crystals were filtered and washed with 500 ml of methanol to obtain 260 g (yield 89%) of an isomer of exemplified compound [IV]-(1) (2-benzamido-4-chloro-5-nitrophenol). From the melting point of below 250° C. and an IR spectrum (νC=O, 1654 cm-1), this compound was found to be 2-benzamide compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04743595
Source datasetuspto-grants-1988_05
ORD IDord-4e4c8ccb5fe54b3eba624e781073023a
Source noteuspto-grants-1988_05