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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291600Generated: October 26, 2026

4-Aminopyridine → N,N-diphenyl-N'-(4-pyridinyl)urea

https://huagongshe.com/reaction/2291600

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminopyridineHCID 1727—
ReactantChloroformHCID 6212—
ReactantN,N-Diphenylcarbamic chlorideHCID 65741—
SolventTriethylamineHCID 8471—
ProductN,N-diphenyl-N'-(4-pyridinyl)ureaHCID 21279137—

Reaction Steps

Employing the general method of Example 1, 27.5 g (0.12 mol) of diphenylcarbamic chloride and 20 g (0.12 mol) of 4-aminopyridine were heated under reflux for two hours in 150 ml of chloroform containing 12.0 g (0.12 mol) of triethylamine to produce the title compound as a pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04797419
Source datasetuspto-grants-1989_01
ORD IDord-de9a25dc27964b549edf0a05670e008e
Source noteuspto-grants-1989_01