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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911010Generated: October 29, 2026

Sodium hydride → HCID 86634744, compound

https://huagongshe.com/reaction/911010

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantPyridine, 2,4,6-trichloro-HCID 27665—
Reactant2,6-DifluorophenolHCID 94392—
SolventDimethylformamideHCID 6228—
ProductHCID 86634744HCID 86634744—

Reaction Steps

2,6-Difluorophenol (10.0 mmol) is added to a mixture of sodium hydride (240 mg, 10 mmol) in DMF (6 mL). The reaction mixture is stirred for 30 minutes at room temperature. The reaction mixture is cooled to 0° C., and 2,4,6-trichloropyridine is added. The reaction mixture is stirred at 0° C. for 1 hour, then at room temperature for 4 hours. The reaction mixture is partitioned between ethyl acetate and water, the organic layer is washed with 2N NaOH, water, brine, dried, and concentrated. The residue is purified via chromatography eluting with 5:1 hexane:ethyl acetate to afford 2,6-dichloro-4-(2,6-difluorophenoxy)pyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022222B2
Source datasetuspto-grants-2011_09
ORD IDord-ab9821b7930a4840ab779b1a13f174d5
Source noteuspto-grants-2011_09