Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 871246Generated: October 30, 2026

5-Tert-butyl-3-isocyanato-1,2-oxazole → 1-(5-Tert-butylisoxazol-3-yl)-3-(4-fluoro-3-hydroxyphenyl)urea

https://huagongshe.com/reaction/871246

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Tert-butyl-3-isocyanato-1,2-oxazoleHCID 12918838—
Reactant5-Amino-2-fluorophenolHCID 22641413—
SolventTolueneHCID 1140—
Product1-(5-Tert-butylisoxazol-3-yl)-3-(4-fluoro-3-hydroxyphenyl)ureaHCID 66876776—

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 5-amino-2-fluorophenol (1.3 g, 10.2 mmol) and 5-tert-butyl-3-isocyanatoisoxazole (1.7 g, 10.2 mmol) in toluene (60 mL) was heated at 70° C. overnight. The solid was filtered and dried under vacuum to afford 1-(5-tert-butylisoxazol-3-yl)-3-(4-fluoro-3-hydroxyphenyl)urea as solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969587B2
Source datasetuspto-grants-2015_03
ORD IDord-9673ff6bad984d109449b9e35830430d
Source noteuspto-grants-2015_03