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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1893173Generated: November 2, 2026

Cesium carbonate → 4-(4-Benzylpiperazin-1-yl)-6-chloropyrimidin-2-amine

https://huagongshe.com/reaction/1893173

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-Amino-4,6-dichloropyrimidineHCID 65522—
Reactant1-BenzylpiperazineHCID 75994—
SolventDimethylformamideHCID 6228—
Product4-(4-Benzylpiperazin-1-yl)-6-chloropyrimidin-2-amineHCID 31537610—

Reaction Conditions

Temperature90 °C

Reaction Steps

1-Benzyl-piperazine (5.86 g, 33.3 mmol), 2-amino-4,6-dichloro-pyrimidine (5.46 g, 33.3 mmol) and Cs2CO3 (10.8 g, 36.6 mmol) were combined in anhydrous N,N-dimethylformamide (DMF) (50 mL) and stirred at 90° C. in dry atmosphere for 5 h. The DMF was removed in vacuo, the residue was dissolved in acetone, and 4-(4-Benzyl-piperazin-1-yl)-6-chloro-pyrimidin-2-ylamine (8.5 g, 86%) was is crystallized form acetone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08513233B2
Source datasetuspto-grants-2013_08
ORD IDord-7e175defcf03431eb8e35dfff111557d
Source noteuspto-grants-2013_08