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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1654908Generated: November 1, 2026

Dichloromethane → 2-Amino-3-(2,4-difluorobenzyloxy)pyridine

https://huagongshe.com/reaction/1654908

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantSodium HydroxideHCID 14798—
Reactant2-Amino-3-HydroxypyridineHCID 28114—
Reactant1-(Bromomethyl)-2,4-difluorobenzeneHCID 90297—
CatalystTrioctylmethylammonium chlorideHCID 21218—
SolventWaterHCID 962—
Product2-Amino-3-(2,4-difluorobenzyloxy)pyridineHCID 10014321—

Reaction Steps

A mixture of 2-amino-3-hydroxy pyridine (2.66 g, 0.024 mol), dichloromethane (20 ml) and 40% aqueous sodium hydroxide solution (20 ml) was stirred for five minutes, then 2,4-difluorobenzyl bromide (5.00g, 0.024 mol) and Adogen 464 (3 ml) were added and stirring continued for 16 hours. The mixture was diluted with water and extracted with dichloromethane. Drying and evaporation of the organic extracts, and trituration with ether gave the desired product. Yield 2.7 g (48%), m.p. 105°-107 ° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05409943
Source datasetuspto-grants-1995_04
ORD IDord-418cbcdc073d42949af24e59adbffbe0
Source noteuspto-grants-1995_04