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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1633913Generated: October 29, 2026

Phenol → 5-Nitro-2-phenoxypyridine

https://huagongshe.com/reaction/1633913

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 tetra-butylammonium 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 numberUS06503949B1
Source datasetuspto-grants-2003_01
ORD IDord-40d00b8e59014abe9289a215a5075bf5
Source noteuspto-grants-2003_01