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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 567979Generated: October 25, 2026

4-Bromophenyl isocyanate → N-(2-hydroxy-4-nitrophenyl)-N'-(4-bromophenyl)urea

https://huagongshe.com/reaction/567979

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromophenyl isocyanateHCID 75609—
Reactant2-Amino-5-NitrophenolHCID 4984721—
ProductN-(2-hydroxy-4-nitrophenyl)-N'-(4-bromophenyl)ureaHCID 2118463637%

Reaction Steps

N-(2-Hydroxy-4-nitrophenyl)-N′-(4-bromophenyl)urea was prepared from 2-hydroxy 4-nitro aniline (500 mg, 3.24 mmol) and 4-bromophenylisocyanate (3.24 mmol) according to the procedure in General Method B. The product was purified by dilution with methylene chloride and precipitation with hexanes. Filtering afforded the title compound(0.41 g, 37%). EI-MS m/z 352(M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06180675B2
Source datasetuspto-grants-2001_01
ORD IDord-52f245df686142b596506ebeb4e98972
Source noteuspto-grants-2001_01