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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227771Generated: October 25, 2026

4-Aminophenol → 4-(3-Bromopyridin-2-yloxy)benzenamine

https://huagongshe.com/reaction/227771

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminophenolHCID 403—
ReactantDimethyl SulfoxideHCID 679—
ReactantCesium carbonateHCID 10796—
Reactant3-Bromo-2-chloropyridineHCID 693324—
SolventWaterHCID 962—
Product4-(3-Bromopyridin-2-yloxy)benzenamineHCID 57756256—

Reaction Steps

3-Bromo-2-chloropyridine (10.3 g, 53.4 mmol), 4-aminophenol (7.00 g, 64.1 mmol), cesium carbonate (34.8 g, 107 mmol), and DMSO (53 ml, 53.4 mmol) were added into a sealed tube. The tube was capped and placed in a preheated oil bath at 130° C. After 16 h, LC-MS showed mainly product. While the reaction mixture was stirring and cooling in ice-water, water was added to induce the product to precipitate out of the solution. A gray solid was obtained, washed with water, dried under vacuum at rt. MS m/z=265 [M+1]+. Calcd for C11H9BrN2O: 263.99.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560551B2
Source datasetuspto-grants-2009_07
ORD IDord-ae5a045af12b492e849ff6acec777c8a
Source noteuspto-grants-2009_07