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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80031Generated: October 30, 2026

Ethyl Acetate → 1-(3-Chloropropyl)-3-pyridin-3-ylurea

https://huagongshe.com/reaction/80031

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant3-AminopyridineHCID 10009—
ReactantPropane, 1-chloro-3-isocyanato-HCID 166752—
SolventTolueneHCID 1140—
Product1-(3-Chloropropyl)-3-pyridin-3-ylureaHCID 5963623295.45%

Reaction Steps

1-Chloro-3-isocyanato-propane (1.897 g, 15.873 mmol) was added dropwise to a stirred solution of pyridin-3-ylamine (1 g, 10.582 mmol) in toluene (15 mL) over a period of 30 minutes at 0° C. The reaction temperature was maintained at room temperature for 6 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 2.1 g (95.45% yield) of 1-(3-chloro-propyl)-3-pyridin-3-yl-urea.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-d4d1a80775374cbd9ee73cb847189189
Source noteuspto-grants-2014_09