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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1348554Generated: October 29, 2026

Citric Acid → HCID 23018274, compound

https://huagongshe.com/reaction/1348554

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
Reactant3,5-DimethylpyrazoleHCID 6210—
ReactantSodium hydrideHCID 24758—
Reactant5,7-Dichloro-6-(2,4,6-trifluorophenyl)imidazo[1,2-a]pyrimidineHCID 23018275—
SolventChloroformHCID 6212—
SolventTetrahydrofuranHCID 8028—
ProductHCID 23018274HCID 2301827447.7%

Reaction Steps

Into a mixture of 0.040 g of sodium hydride (60% in oil) and 2 ml of tetrahydrofuran, a solution of 0.096 g of 3,5-dimethylpyrazole in 3 ml of tetrahydrofuran was added dropwise. The mixture was added to a solution of 0.32 g of 5,7-dichloro-6-(2,4,6-trifluorophenyl)imidazo[1,2-a]pyrimidine in 5 ml of tetrahydrofuran under ice-cooling. To the reaction mixture, chloroform and aqueous citric acid solution were added. The separated organic layer was washed with water, dried over sodium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give 0.18 g of 5-(3,5-dimethylpyrazol-1-yl)-6-(2,4,6-trifluorophenyl)-7-chloroimidazo[1,2-a]pyrimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211545B2
Source datasetuspto-grants-2007_05
ORD IDord-b8fc64842d254a7a9cabb6ac7f48d28c
Source noteuspto-grants-2007_05