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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2071483Generated: October 31, 2026

Pyridine → HCID 16044401, compound

https://huagongshe.com/reaction/2071483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-AminophenolHCID 5801—
Reactant4-Ethylbenzoyl chlorideHCID 85368—
SolventBenzeneHCID 241—
ProductHCID 16044401HCID 16044401—

Reaction Steps

To a solution of 8.2 gm. of o-aminophenol in 70 cc. of dry pyridine is added a solution of p-ethylbenzoyl chloride (prepared from 10 gm. of p-ethylbenzoic acid and thionyl chloride) in 20 cc. of benzene. An exothermic reaction occurs and the reaction mixture is stirred overnight at ambient temperature. The mixture is concentrated in vacuo and taken up between a 1:1 mixture of benzene and ether and 2.5 N hydrochloric acid. The organic layer is washed with saturated sodium bicarboxate, water, then dried and concentrated. Recrystallization from benzene-hexane gives 4-ethyl-2'-hydroxybenzanilide, m.p. 103°-105° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04046905
Source datasetuspto-grants-1977_09
ORD IDord-6d25f7d93f6f4e9594ffcea4abc817e7
Source noteuspto-grants-1977_09