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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78360Generated: October 25, 2026

Ammonia → 4-Chloropyridine-2-carboxamide

https://huagongshe.com/reaction/78360

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant4-Chloropyridine-2-carbonyl chloride--hydrogen chloride (1/1)HCID 22397270—
Product4-Chloropyridine-2-carboxamideHCID 303543—

Reaction Steps

Entry 43: 4-Chloropyridine-2-carbonyl chloride HCl salt was reacted with ammonia according to Method A2, Step 3b to form 4-chloro-2-pyridinecarboxamide. 4-Chloro-2-pyridinecarboxamide was reacted with 4-aminophenol according to Method A2, Step 4 to form 4-(2-carbamoyl-4-pyridyloxy)aniline. According to Method C1a, 4-chloro-3-(trifluoromethyl)phenyl isocyanate was reacted with 4-(2-carbamoyl-4-pyridyloxy)aniline to afford the urea.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841330B2
Source datasetuspto-grants-2014_09
ORD IDord-726d52174a384cecbca877e5c54fd8b0
Source noteuspto-grants-2014_09