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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1814640Generated: November 1, 2026

Phenol → 5-Nitro-2-phenoxypyridine

https://huagongshe.com/reaction/1814640

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenolHCID 996—
ReactantDiethyl EtherHCID 3283—
Reactant2-Chloro-5-nitropyridineHCID 78308—
CatalystTetrabutylammonium BromideHCID 74236—
SolventTolueneHCID 1140—
SolventSodium HydroxideHCID 14798—
Product5-Nitro-2-phenoxypyridineHCID 325237148.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

Phenol (0.9 g, 9.5 mmol) was dissolved in sodium hydroxide (50% solution, 12 mL). 5-Nitro-2-chloropyridine (1.5 g, 9.5 mmol) in toluene (15 mL) was added followed by addition of tetrabutylammonium bromide (0.3 g, 0.95 mmol). The reaction mixture was stirred for 16 hours at 20° C. and 5 hours at 80° C. where after it was cooled to room temperature and diethyl ether (100 mL) added. The organic phase was washed with water (5×50 mL), dried (MgSO4), and concentrated in vacuo to give 1.0 g of 5-nitro-2-phenoxypyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06875760B2
Source datasetuspto-grants-2005_04
ORD IDord-1f5e1ce1c5cb476aaae4318de4556d22
Source noteuspto-grants-2005_04