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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1484858Generated: November 3, 2026

Ethyl 2,4-dichloropyrimidine-5-carboxylate → HCID 58169488, compound

https://huagongshe.com/reaction/1484858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 2,4-dichloropyrimidine-5-carboxylateHCID 104020—
Reactant3-cyclopropyl-1H-pyrazol-5-amineHCID 2758014—
SolventEthanolHCID 702—
ProductHCID 58169488HCID 5816948870%

Reaction Conditions

Temperature20 °C

Reaction Steps

A mixture of ethyl 2,4-dichloropyrimidine-5-carboxylate (3.6 g, 16.3 mmol, 1.0 equiv.) and 5-cyclopropyl-1H-pyrazol-3-amine (3.0 g, 24.45 mmol, 1.5 equiv.) in EtOH (6 mL) was stirred at 20° C. under a nitrogen atmosphere for 10 min. The reaction mixture was filtered and the solid was washed by EtOH (10 mL) and MeOH (3 mL) to afford ethyl 2-chloro-4-(5-cyclopropyl-1H-pyrazol-3-ylamino)pyrimidine-5-carboxylate (3.5 g, 70%) as a white solid. LC-MS (m/z)=308.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09422271B2
Source datasetuspto-grants-2016_08
ORD IDord-531c80f6857d48a39b7b5ea237fe4e66
Source noteuspto-grants-2016_08