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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2244050Generated: November 1, 2026

Sodium hydride → HCID 25059433, compound

https://huagongshe.com/reaction/2244050

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantDimethylacetamideHCID 31374—
ReactantAcetamidine monohydrochlorideHCID 67170—
Reactant2,4-DifluorobenzonitrileHCID 77545—
ReactantSodium BicarbonateHCID 516892—
ProductHCID 25059433HCID 2505943333%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 2,4-Difluorobenzonitrile (1.1 g, 1 eq), acetamidine hydrochloride (2.8 g, 3.78 eq) and sodium hydride (1.52 g, 8 eq) in dimethylacetamide (50 mL) is stirred at 150° C. for overnight. Then the reaction mixture is poured into sat'd NaHCO3 aq. solution (300 mL), extracted by EtOAc (3×200 mL), the combined organic layers dried over Na2SO4, filtered, concentrated to give a crude product. Purification of that by flash column chromatography yields 7-Fluoro-2-methyl-quinazolin-4-ylamine (0.46 g, 33% yield). LC/MS m/z=178 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07678803B2
Source datasetuspto-grants-2010_03
ORD IDord-468bb75e03174cf796b80f3389467320
Source noteuspto-grants-2010_03