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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 640493Generated: October 30, 2026

Tetrahydrofuran → HCID 59255492, compound

https://huagongshe.com/reaction/640493

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantSodium hydrideHCID 24758—
Reactant4-Bromobenzyl bromideHCID 68527—
Reactant3-(1H-pyrazol-4-yl)-pyridin-2-ylamineHCID 59255290—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 59255492HCID 5925549287.3%

Reaction Steps

To a mixture of 3-(1H-pyrazol-4-yl)-pyridin-2-ylamine (150 mg, 0.94 mmol) described in Manufacturing Example 32-1-4 and tetrahydrofuran (2 mL) was added sodium hydride (12 mg, 0.24 mmol, 50% in oil) at 0° C., and then N,N-dimethylformamide (2 mL) was added. The reaction mixture was stirred for 10 minutes at room temperature, after which 4-bromobenzyl bromide (260 mg, 1.0 mmol) was added at 0° C. to this mixture, which was stirred for 1 hour at room temperature. Water was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, and was concentrated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=4:1) to obtain the title compound (270 mg, 86%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07691882B2
Source datasetuspto-grants-2010_04
ORD IDord-ef47bfcc415a486eaf40d04f7fbf5a9d
Source noteuspto-grants-2010_04