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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78381Generated: October 26, 2026

4-Aminophenol → 4-(2-(N-ethylcarbamoyl)-4-pyridyloxy)aniline

https://huagongshe.com/reaction/78381

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminophenolHCID 403—
ReactantEthylamineHCID 6341—
Reactant4-chloropyridine-2-carbonyl ChlorideHCID 11095146—
Reactant4-chloro-N-ethylpyridine-2-carboxamideHCID 22832131—
Product4-(2-(N-ethylcarbamoyl)-4-pyridyloxy)anilineHCID 23614559—

Reaction Steps

Entry 99: 4-Chloropyridine-2-carbonyl chloride was reacted with ethylamine according to Method A2, Step 3b. The resulting 4-chloro-N-ethyl-2-pyridinecarboxamide was reacted with 4-aminophenol according to Method A2, Step 4 to give 4-(2-(N-ethylcarbamoyl)-4-pyridyloxy)aniline. 4-Chloro-2-methoxy-5-(trifluoromethyl)aniline was synthesized according to Method A7. 4-Chloro-2-methoxy-5-(trifluoromethyl)aniline was converted into 4-chloro-2-methoxy-5-(trifluoromethyl)phenyl isocyanate according to Method B1. According to Method C1a, 4-chloro-2-methoxy-5-(trifluoromethyl)phenyl isocyanate was reacted with 4-(2-(N-ethylcarbamoyl)-4-pyridyloxy)aniline to afford the urea.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841330B2
Source datasetuspto-grants-2014_09
ORD IDord-021a276ced9c47afb3c8f19882ef362e
Source noteuspto-grants-2014_09