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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1685407Generated: October 30, 2026

Sodium Hydroxide → 5-Phenoxypyridin-3-ol

https://huagongshe.com/reaction/1685407

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantPyridinium hydrochlorideHCID 21584435—
ReactantHCID 67292589HCID 67292589—
SolventMethanolHCID 887—
Product5-Phenoxypyridin-3-olHCID 6729106954%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 0.6 g (3.37 mM) of 3-methoxy-5-phenoxypyridine and 1.15 g (10 mM) of pyridinium hydrochloride is prepared. It is heated by microwaves for 40 minutes at 150° C. and then cooled, taken up with methanol and brought to pH 7 with 1 N sodium hydroxide solution. After concentration under reduced pressure, the residue obtained is purified by chromatography on silica gel using a toluene/isopropanol mixture (95/5; v/v) as the eluent to give the desired product in the form of an off-white solid with a yield of 54%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08148407B2
Source datasetuspto-grants-2012_04
ORD IDord-6d161d15b4224b20ba7efc85e38d5903
Source noteuspto-grants-2012_04