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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2383704Generated: October 31, 2026

Ethyl Acetate → N-(2-Chloroethyl)-N'-(3-pyridinyl)urea

https://huagongshe.com/reaction/2383704

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant3-AminopyridineHCID 10009—
Reactant2-Chloroethyl isocyanateHCID 16035—
SolventTolueneHCID 1140—
ProductN-(2-Chloroethyl)-N'-(3-pyridinyl)ureaHCID 25633098%

Reaction Steps

1-Chloro-2-isocyanato-ethane (560 mg, 5.31 mmol) was added dropwise to a stirred solution of pyridin-3-ylamine (500 mg, 5.31 mmol) in toluene (10 mL) over a period of 30 minutes at 0° C. The reaction temperature was maintained at room temperature for 5 hours. The reaction was monitored by TLC (100% ethyl acetate). The reaction mixture was filtered, washed with toluene and dried under reduced pressure to afford 1.0 g (98% yield) of 1-(2-Chloro-ethyl)-3-pyridin-3-yl-urea.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08263635B2
Source datasetuspto-grants-2012_09
ORD IDord-48b27310993149308a403904d88b5ee7
Source noteuspto-grants-2012_09