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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1774161Generated: October 30, 2026

Cesium carbonate → HCID 61279786, compound

https://huagongshe.com/reaction/1774161

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant4,6-DichloropyrimidineHCID 70943—
Reactant4-AminotetrahydropyranHCID 419223—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 61279786HCID 6127978672.4%

Reaction Steps

4,6-Dichloropyrimidine (3.06 g, 20.5 mmol) was dissolved in dimethylformamide (“DMF”) (20 mL) and Cs2CO3 (10.0 g, 30.8 mmol) was added. Tetrahydro-2H-pyran-4-amine (1.87 g, 18.5 mmol) combined with DMF (5 mL) was added dropwise. A slight exotherm was observed. After agitating at ambient temperature for 2 hours, product peak was seen in LC/MS. Agitation continued overnight. The mixture was then diluted with ethyl acetate (250 mL) and washed 4 times with water, brine, dried and evaporated to give 6-chloro-N-(tetrahydro-2H-pyran-4-yl)pyrimidin-4-amine (2.86 g, 13.4 mmol, 65.2% yield) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09259470B2
Source datasetuspto-grants-2016_02
ORD IDord-f081151491694c0ead0c89aaf9b5a14e
Source noteuspto-grants-2016_02