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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78210Generated: October 29, 2026

Tetrahydrofuran → HCID 59255492, compound

https://huagongshe.com/reaction/78210

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 numberUS08841327B2
Source datasetuspto-grants-2014_09
ORD IDord-c6ed903ebf9e465eb097f35eb8e50f37
Source noteuspto-grants-2014_09