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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 415424Generated: October 30, 2026

Triethylamine → 2,5-Dichloro-N-(5-methyl-1H-pyrazol-3-yl)-4-pyrimidinamine

https://huagongshe.com/reaction/415424

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1H-Pyrazol-3-amine, 5-methyl-HCID 93146—
Reactant2,4,5-TrichloropyrimidineHCID 237259—
SolventEthanolHCID 702—
Product2,5-Dichloro-N-(5-methyl-1H-pyrazol-3-yl)-4-pyrimidinamineHCID 1140227261.5%

Reaction Steps

To a solution of 5-methyl-1H-pyrazol-3-amine (2.78 g, 27.3 mmol) in absolute EtOH (30 ml) was added triethylamine (5 ml) and 2,4,5-trichloropyrimidine (5.0 g, 27.3 mmol) and the resulting solution was aged at room temperature for 12 hours. The mixture was partitioned between EtOAc and H2O, the organic layer was washed with brine and dried. The solvents were removed under reduced pressure to give the title compound (4.1 g). m/z: 245.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08088784B2
Source datasetuspto-grants-2012_01
ORD IDord-c3aa3bf76eee4232a09677f9c802e007
Source noteuspto-grants-2012_01