Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1473972Generated: October 27, 2026

Hydrochloric Acid → 2-Hydroxy-4-(thiazol-2-ylamino)benzonitrile

https://huagongshe.com/reaction/1473972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-BromothiazoleHCID 76430—
Reactant4-Amino-2-hydroxybenzonitrileHCID 12468682—
SolventEthanolHCID 702—
Product2-Hydroxy-4-(thiazol-2-ylamino)benzonitrileHCID 8609600926%

Reaction Conditions

Temperature90 °C

Reaction Steps

Following the general procedure for the synthesis of 2-R-5-(thiazol-2-ylamino)phenol, 2-bromothiazole (0.94 mL, 10.4 mmol), 4-amino-2-hydroxybenzonitrile (696 mg, 5.2 mmol) and 37% HCl solution (0.88 mL, 10.4 mmol) in 10% aqueous EtOH solution (20 mL) was stirred at 90° C. for 24 h. The title compound was obtained after purification by flash chromatography on silica gel (hexane:EtOAc 1/1) in 26% yield (293 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018209B2
Source datasetuspto-grants-2015_04
ORD IDord-4ca5e91211b64ea198f44c5d7bbfaee2
Source noteuspto-grants-2015_04