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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 476992Generated: October 29, 2026

3-Aminopyridine → N-(2-Chloroethyl)-N'-(3-pyridinyl)urea

https://huagongshe.com/reaction/476992

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-AminopyridineHCID 10009—
Reactant2-Chloroethyl isocyanateHCID 16035—
ProductN-(2-Chloroethyl)-N'-(3-pyridinyl)ureaHCID 25633099.9%

Reaction Steps

To a solution of 150 g of 3-aminopyridine dissolved in 1000 ml of tuluene, 176 g of 2-chloroethylisocyanate was added dropwise over 30 minutes under cooling. After stirring at room temperature for 5 hours, the precipitated crystals were collected by filtration to give 318 g of N-(2-chloroethyl)-N'-(3-pyridyl) urea.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04886817
Source datasetuspto-grants-1989_12
ORD IDord-a549fca4347c4b76a0ce5858626b86a1
Source noteuspto-grants-1989_12