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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273274Generated: October 29, 2026

Ethanolamine → 2-((2-Chloro-5-nitropyrimidin-4-yl)amino)ethan-1-ol

https://huagongshe.com/reaction/273274

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant2,4-Dichloro-5-nitropyrimidineHCID 521266—
SolventEthanolHCID 702—
SolventMethanolHCID 887—
Product2-((2-Chloro-5-nitropyrimidin-4-yl)amino)ethan-1-olHCID 1168014681%

Reaction Steps

19.40 g (0.1 mole) of 2,4-dichloro-5-nitropyrimidine was completely dissolved in 60 ml of ethanol and maintained below 15° C. To this solution, a solution of 12.22 g (0.2 mole) of ethanolamine in 20 ml of methanol was added slowly while maintaining the temperature of a reactor below 20° C. The mixture was stirred below 15° C. for 18 hours. After completion of the reaction, the reaction product was maintained below 5° C., and the resulting crystal was filtered, washed and dried, thereby giving 17.71 g (81% yield) of light yellow-colored 2-chloro-4-(2-hydroxyethylamino)-5-nitropyrimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456282B2
Source datasetuspto-grants-2008_11
ORD IDord-ebe8d67107094edb81775b54ea88a9ed
Source noteuspto-grants-2008_11